Bids androiddela

Aplikacija je narejena, potrebna je implementacija Google pay sistema

Iščem freelancerja za izdelavo bolj kot ne preproste APP za android in potem s sprotnim vzdrževanjem/nadgrajevanjem glede na nadgradjne android OS.. Imam že sourrce, a je žal zastarel in ga android ne mara več ?.

Iščemo osebo za izdelavo mobilne aplikacije za iOS in Android. Dizajn je že narejen v Adobe XD. Hvala.

Potreboval bi Android/iOS aplikacijo. Temeljila bi na analizi uporabnikovih slik zajetih s selfie kamero in analizi parametrov na sliki. Algoritem za analizo slike imam že pripravljen v programu Matlab. Načrt aplikacije z wireframe-om lahko v celoti pripravim sam, tako, da bi bila naloga programerja prepis vsega v programsko kodo.

Iščem nekoga, ki bi mi naredil preprosto android/iOS aplikacij za spletno stran . V bistvu gre samo za zaslonske menije povezane med seboj. Na koncu pa stran z linki do učnih listov na internetu. Dodatne informacije : @

Potrebujem aplikacijo za tablico in telefon, na sistemu android. Gre se za program, kateri se uporablja pri odkupu lesa. Glavni del je kubiciranje hlodovine ( po znani formuli), ustavarjanje novih dokumentov, dodajanje različnih strank.. in na koncu možnost tiskanja in izpisa v pdf-ju... več informacij kasneje...

imamo že narejeno aplikacijo v starejši verziji androida. ker ne dela več vse, jo je potrebno popraviti

...1 mesec  Poln (8 urni) delavnik  Delo za nedoločen čas Kaj podjetje pričakuje od kandidatov  Zaželjena/zahtevana VI stopnja izobrazbe  Zahtevamo vsaj 5 let delovnih izkušenj  Prednost bodo imeli kandidati z delovnimi izkušnjami na podobnih delovnih mestih/področjih  Znanje računalniških programov PHP, MySQL, JAVA  Znanje tujih jezikov: Italijanščina in Angleščina   Zaželjeno znanje Android-a  Samostojnost  Natančnost  Izkušnje z vodenjem projektov  Izkušnje z delom v skupini - Kaj podjetje kandidatu/om ponuja  Stimulativno plačilo  Možnost dodatnih izobraževanj (doma in v tujini)  Nagrajevanje uspešnosti  Delo v mladem in inovativnem okolju,  Urejeno delovno okolje v prestižni stavbi  M...

...1 mesec  Poln (8 urni) delavnik  Delo za nedoločen čas Kaj podjetje pričakuje od kandidatov  Zaželjena/zahtevana VI stopnja izobrazbe  Zahtevamo vsaj 5 let delovnih izkušenj  Prednost bodo imeli kandidati z delovnimi izkušnjami na podobnih delovnih mestih/področjih  Znanje računalniških programov PHP, MySQL, JAVA  Znanje tujih jezikov: Italijanščina in Angleščina   Zaželjeno znanje Android-a  Samostojnost  Natančnost  Izkušnje z vodenjem projektov  Izkušnje z delom v skupini - Kaj podjetje kandidatu/om ponuja  Stimulativno plačilo  Možnost dodatnih izobraževanj (doma in v tujini)  Nagrajevanje uspešnosti  Delo v mladem in inovativnem okolju,  Urejeno delovno okolje v prestižni stavbi  M...

...1 mesec  Poln (8 urni) delavnik  Delo za nedoločen čas Kaj podjetje pričakuje od kandidatov  Zaželjena/zahtevana VI stopnja izobrazbe  Zahtevamo vsaj 5 let delovnih izkušenj  Prednost bodo imeli kandidati z delovnimi izkušnjami na podobnih delovnih mestih/področjih  Znanje računalniških programov PHP, MySQL, JAVA  Znanje tujih jezikov: Italijanščina in Angleščina   Zaželjeno znanje Android-a  Samostojnost  Natančnost  Izkušnje z vodenjem projektov  Izkušnje z delom v skupini - Kaj podjetje kandidatu/om ponuja  Stimulativno plačilo  Možnost dodatnih izobraževanj (doma in v tujini)  Nagrajevanje uspešnosti  Delo v mladem in inovativnem okolju,  Urejeno delovno okolje v prestižni stavbi  M...

I'm in need of an experienced React Native app developer to help me create a live-streaming video app. The app should be compatible with both iOS and Android platforms, and should include key features like user registration and login, live video broadcasting, and chat functionality. Key Requirements: - React Native Expertise: You should be well-versed in developing applications using React Native. - Experience with Live-Streaming Apps: Prior experience in building live-streaming video apps will be highly beneficial. - Cross-platform Compatibility: The app must work seamlessly on both iOS and Android devices. - Feature Implementation: You will be responsible for integrating user registration and login, live video broadcasting, and chat functionality into the app. - Socia...

...fit their needs. - **Debt Elimination**: The app should provide strategies and tools to help users eliminate debts. - **AI Assistance**: The app should utilize AI to provide personalized financial advice and suggestions. UI/UX Design: - I'm looking for a **minimalistic and modern** user interface that is easy to use and aesthetically pleasing. Key Responsibilities: - Develop an **iOS** and **Android** app that seamlessly integrates with external APIs. - Implement an AI system that provides personalized financial advice. - Create a **user-friendly UI/UX** design that aligns with the minimalistic and modern design preferences. Ideal Candidate: - Proven experience in building finance or budgeting apps. - Strong understanding of AI integration in mobile apps. - Proficiency in...

I have a web-app for teachers and I want to make a mobile app to access the same features on the go. I have an API ready and designs, I would like someone to make these screens (pixel perfect) as quickly as possibly) either natively or in a cross-platform framework for Android and iOS. Please take a look at the current designs in Figma: ...and give me a quote for how long it would take for you to re-create these screens, closely matching the designs, with no functionality yet, just the designs.

I'm looking for a talented developer who can create a fake betting app for fun for Android. Your responsibilities will include: - Developing a fun and interactive fake betting app with payment integration to crypto wallet or UPI ID. - Ensuring the app is available exclusively for Android users. - Implementing a clean, user-friendly sports-themed design. Key requirements: - Experienced in android app development, especially in creating betting or gaming apps. - Proficient in integrating payment gateways like crypto wallet or UPI ID. - Skilled in UI/UX design, particularly with a sports-themed aesthetic. - Understanding of laws and regulations regarding betting apps. - Excellent communication skills for discussing project details and updates.

...evaluar no cobran estacionamiento. C. Edad mínima 25 años. D. Contar con un smartphone con Android y/o iOS y tener la app de Freelancer instalada en su teléfono móvil con las notificaciones activadas. (Una de las principales causas de que los proyectos no se logren satisfactoriamente es debido a que los Freelancers no están al pendiente de sus mensajes o no reciben las notificaciones causando una comunicación tardía, por este motivo te pedimos instalar la app y estar al tanto de la misma para beneficio de todos). Si te interesa participar en esta actividad realiza tu bid por la cantidad fija $80 USD y escribiendo en el mensaje el municipio o alcaldía en el que vives para confirmar que no eres un bot. Bids por cantida...

...mobile app. This is final testing before launch and URGENT as we launch ASAP. You will perform tests following the test cases provided by us. Having a solid understanding in app functionality testing is crucial. I am only accepting bids from professionals who can work in daylight hours and are based in Thailand. Please share any relevant experience and success in similar projects. We seek to hire TODAY, May 3, 2024 if possible and seek to start you as soon as possible (today if possible). Essential Skills & Requirements: - Cross-platform mobile app testing (Android, iOS) - Excellent understanding of functionality testing - Capacity to strictly follow provided test cases - Availability during daylight hours in Thailand. ----- Freelancer auto-wrote most of the abo...

I want to Build an Android app where Shop owner can register and can create invoice and print the invoices through tharmal printer. I need someone who have knowledge on Billing can bid here. Send me complete details what feture you can provide me, Backend on Codeigniter 4

I have a mobile application's source code, written in PHP, that I need converted into an APK file with necessary settings. Key Requirements: - Convert PHP source code to an Android-compatible APK file - Implement necessary settings for the app to function properly on Android devices Ideal Freelancer: - Proficient in PHP and Android app development - Experienced in converting PHP applications to Android APKs - Has a good understanding of Android-specific settings and configurations

I am in need of an advanced word processing application for desktop use on Windows and macOS. The application should have: - Spell check functionality to ensure accurate spelling - Grammar check feature to improve the overall quality of the document - Auto-correct feature to fix common typing errors The project does not require cloud storage capabilities. The key focus is on the word processin...Word processing software development - Proficiency in developing applications for Windows and macOS - Strong understanding of spell check, grammar check, and auto-correct features - Prior experience in developing similar applications A comprehensive and user-friendly application is a priority. Please only apply if you have the required skills and experience. Looking forward to receiving your ...

I need Satta matka android application with admin panel .

...hunt for a seasoned Android development specialist who can assist me in designing an application for school bus management. This app should include significant features like: - Real-time GPS tracking that allows the physical observation of the school bus around the clock. - Outline of attendance management that streamlines the recording of student presence and absence. - Communication hub for parents with push notifications, SMS messages, and email alerts. These notifications should keep parents updated about their children's transportation journey, providing important details such as the current location of the bus, exact arrival and departure times, and any unforeseen delays or emergencies. The ideal candidate for this project will have proven experience in Andro...

I am in need of an expert in Android application development for a commercial grocery shop app. The freelancer should have substantial background in Android app development. The app needs to be user-friendly and engaging. Key Requirements: - Ability to develop an Android app from scratch - Proficient in Java or Kotlin - Familiarity with Android SDK and Android Studio Please detail your experience with Android development in your bid, it would heavily influence my decision. Looking forward to having an experienced professional developer on board!

I'm seeking a skilled architect for a residential building project. The main focus is a contemporary architectural style, with integration of an open floor plan. - Architecture Style I am aiming for a contemporary aesthetic. You...open floor plan. - Architecture Style I am aiming for a contemporary aesthetic. Your portfolio should demonstrate your keen eye for modern design and your ability to adapt current trends to a home setting. - Building Features The design should incorporate a seamless, open floor plan that allows for ease of movement and connectivity between rooms. - Skills and Experience Successful bids will come from architects with extensive experience in contemporary home designs and open floor plans. Proven success in delivering similar projects ...

I'm seeking a seasoned web developer proficient in both front-end and back-end development to tackle an exciting project. This opportunity involves creating an efficient, user-friendly e-commerce website tailored to my needs and preferences. Key Responsibilities: - Developing a robust e-commerce website on WooCommerce platform. - Efficiently handling both front-end and back-end tasks. Ski...Proven experience in developing WooCommerce websites. - Strong skills in front-end and back-end development. - Comprehensive knowledge in database management would be a bonus, although not required. Your expertise will play a vital role in making the e-commerce platform both visually appealing and easy to navigate, providing a seamless shopping experience for our customers. Looking forward to yo...

I'm looking for talented cartoonists to create a series of humorous African American cartoons for our newsletter. Key Points: - These cartoons will be targeted at an adult audience, so the humor should be mature and sophisticated. - The purpose of this project is to entertain and engage our readers. - I want the cartoons to represent the African American culture in a tasteful a...Ideal Skills and Experience: - A strong background in cartoon illustration, particularly with diverse characters. - An understanding of African American culture and humor will be crucial. - Previous experience creating content for newsletters or other media platforms is a plus. - Must be able to deliver original, high-quality work in a timely manner. I look forward to seeing your portfolios and bids...

I'm in need of a skilled Android developer to create a utility tool app that works as a merged signal generator and oscilloscope. like this but in one app for graduation project: Key Features: - Signal Generation: The app should be able to generate various electrical signals. - Waveform Visualization: The app should provide a clear visualization of generated signals in waveform format. Requirements: - You should have a strong background in Android app development, specifically in creating utility tools. - Experience with signal processing and waveform visualization is a plus. - A good understanding of UI/UX design principles to ensure a user-friendly experience.

I'm in need of an Android Developer proficient in Kotlin and XML for my POC project. It involves incorporating a specific HLS video stream into an XML, with the video displayed on a full-screen basis. Here's what the project entails: • Proficiency in Kotlin and XML: You'll need these skills since the project revolves around Android app development with video display functionality. • HLS Video Stream Integration: You will integrate this specific HLS video stream url: :ktvaq.stream.smil/chunklist_b350000_t64MjQwcA==.m3u8 • Full-Screen Video Display: I want the video stream to be displayed full screen on the app. The display needs to be seamless, without any glitching or stuttering. • No Specific Design Requirement: I do not require any pa...

I'm looking for an experienced mobile app developer to create a comprehensive property listing application for both iOS and Android platforms. Key Features: - Property listing with detailed information and images - Intuitive search functionality - Contact forms for easy communication between users Additional Functionalities: - Image gallery for each property - User authentication for security and personalized experience - Push notifications to keep users informed - User Profiles - Advanced Search Filters - Geolocation Services - Integrated Messaging System - Review and Rating System - Offline Access - Integration with Social Media - Secure Payment Gateway - Analytics Dashboard - Multilingual Support Design: I prefer a modern and minimalist design for the mobile application....

I'm in need of a dynamic and experienced video editor who specializes in YouTube content. I have podcast episodes that need expert editing to reflect an engaging and professional vlog-style presentation. Your responsibilities will be: - Edit less than 30 min long podcast episodes - Create a final vlog-style output suitable for YouTube The ideal candidate will have: - Strong skills in v...Experience with editing YouTube videos and short-form content - An understanding of pacing, storytelling in a vlog style - Familiarity with podcast content is a plus, but not necessary. Your creativity and flair are as vital as your technical skills, as you'll be instrumental in transforming raw footage into a polished product that reflects my brand and engages my audience. Looking forward ...

Seeking an Android developer with expertise in Kotlin and XML for a video display app project. Must integrate a specific HLS video stream (":ktvaq.stream.smil/chunklist_b350000_t64MjQwcA==.m3u8") into an XML fragment. Key functionalities needed: Play/Pause, volume control, and adjustable video speed. Autoplay after a delay. Full screen and landscape mode support. Requirements: Profound experience in Android development, especially in handling video playback and media controls.

...project is to develop a tool that makes exploring new cities and regions engaging, interactive, and informative. Key Features: - The AR navigation guide should be accessible as both a mobile application and website - The main platform for the application should be Android - The app should incorporate real-time location tracking and landmarks identification features to enhance user experience. Ideal Skills and Experience: - Proficiency in AR development - Experience in mobile application and website development - Strong knowledge of Android development - Previous work with real-time location tracking and landmarks identification would be advantageous - Creativity and an understanding of user experience design would be highly valued. Please provide examples of your past w...

We are looking for a talented graphic designer to create a realistic silhouette of a Bearded Vulture for a banner that will be printed in real size (approximately 1.5 x 3 meters). The banner will serve as an educational tool for children, allowing them to pose next to it and be amazed by the size of this magnificent bird. Project requirements: -Silhou...with an accurate illustration of the Bearded Vulture to generate the silhouette. Visual identity guidelines of the NGO will be provided to ensure consistency with our branding. Deadline: The project needs to be completed as soon as possible, ideally by early next week. How to apply: Interested designers should submit their budget and portfolios showcasing relevant previous work along with their bids. Deadline: Wednesday, 8 May ...

I'm looking for a skilled developer to create a social networking application that can work seamlessly on iOS, Android, and web platforms. Key Features: - User Profiles: The app should have a robust user profile system. - Messaging System: A real-time messaging feature that is reliable and user-friendly. Experience Required: - Proven track record in developing cross-platform mobile applications (iOS and Android) with a web counterpart. - Strong expertise in implementing social networking features such as user profiles and messaging systems. - Familiarity with UX/UI design principles for a seamless user experience across different platforms. Please note that the project scope may expand based on further discussions and I'm open to suggestions for additional fea...

I'm in need of a sign and seal for my home residential design project. My primary requirement is to have my architectural plans properly signed and sealed. I'm not requiring any changes as drawings are already completed. The drawings conform to code, and I'm just needing sign and seal for state of Florida. Ideal candidates for this task should have the following qualifications: - Pr...verification - Familiarity with architectural plan protocol - Knowledge of legalities concerning architectural plan sign-off in Florida Your main task will be to review the architectural plan and render a valid sign and seal. This project is fairly straightforward and is essential for my work's progression. Drawings attached are not of exact project, but similar in completion. Thanks in...

I am in need of an expert Python developer with specific experience in Flask framework and Amazon DynamoDB. The primary task is to fix a database connection issue. We are finding it difficult to establish a stable connection with DynamoDB. • Required...connection issue. We are finding it difficult to establish a stable connection with DynamoDB. • Required Skills: Python, Flask, Amazon DynamoDB, Monolithic architecture experience • Task: Diagnosing and troubleshooting connection issue between Python/Flask backend and DynamoDB. • Bonus: Working knowledge of monolithic architecture and associated best practices would be beneficial. Please submit your bids if you're confident in diagnosing and rectifying such connectivity issues. Your insight and expertise...

I'm looking to have a set of various mini games developed for Android. These games should range across the categories of Puzzle, Match-3, and Arcade games. Specific Design & Theme Preferences: - The games should have a fantasy and retro aesthetic. This is important to me as it aligns with the targeted audience - Kids and Teenagers. Key Elements of the Project: - Development of multiple mini games - Integration of the selected design themes - Ensuring the games are engaging and suitable for the specified audience Ideal Skills and Experience: - Proficient in Android game development - Prior experience in developing Puzzle, Match-3 and Arcade games - Strong design capabilities with a focus on fantasy and retro themes - Understanding of game mechanics, user exper...

We are seeking a dynamic freelancer to lead the promotion of our Android money SMS app in various markets. Our app offers innovative solutions for earning money by receiving SMS messages, providing users with a simple and convenient way to generate income. Project Overview: Our primary objective is to obtain 50 real users per country. Once you sign up you will receive a referral code. You will be paid 1USD per APP downloaded with your referral code.

I'm in need of a full-time, remote Flutter developer possessing skills to craft an Android productivity app. The ideal freelancer is familiar with Flutter & Android App development, and can work comfortably with a salary scale of 10000 INR to 30000 INR. Key Responsibilities/Experience: * Include robust features such as Task management, Time tracking, and Calendar Integration in the productivity app. * Must have a minimum of 6-month to 2-year experience in app development. * Compliance to Ruskdesk coding criteria and process. * Able to work within a tight deadline of a month. This role is only open to individual developers capable of handling an entire project. If you meet the criteria, let's talk!

As a project owner, I require a talented Android developer to create an intuitive and efficient application. Though I wasn't specific about the primary goal or progression of the project, the essential focus will be on executing an efficient Android app. Further details will be disclosed to the selected candidate. Ideal skills and experience required for this project: • Expertise in Android app development • Familiarity with Google Play Store's guidelines • Good understanding of UI/UX principles • Demonstrated ability to take a product from draft to launch • Capability to work flexibly as project requirements evolve Dipesh here , founder of SR finance! Our goal is to finance smartphone of low price range of 10k -20k for those p...

I'm in need of a proficient mobile application developer comfortable with both iOS and Android platforms. The primary function of the application is for e-commerce. Key features should focus primarily on enabling user login and profile creation. The successful freelancer should have substantial experience with: I have file of both android and ios developer needs to convert into apk and upload it into apple store and google play store. - Creating e-commerce applications on both iOS and Android platforms. - Designing and integrating user login and profile functionality. - Ensuring user profile security. - Efficient database management and usage for storing user information. - UX/UI design skills would be a bonus to create an engaging and friendly user interface.

I'm looking for an experienced app developer who can transform my Figma screens into a fully functional mobile application on both iOS and Android platforms. The main objective of the project is to provide users with an engaging and seamless experience on our app. Your job will be to bring our designs to life by incorporating features that will make our app: - Highly engaging - Easy to navigate - Visually appealing Key skills and experience required for this project include: - Proficiency in both iOS and Android app development - Prior experience with Figma - Strong understanding of User Experience (UX) design - Ability to optimize the app for maximum performance and reliability If you have a proven track record of developing user-friendly and successful apps using ...

I require an experienced professional to obtain text and images from a blog and store them in a CSV file. The ideal candidate should: - Have experience in scraping content from websites - Be adept at data management, specifically CSV files - Be proficient in handling both texts and images and store in easy way to manage and retrieve A strong track record of similar projects will be a plus....store them in a CSV file. The ideal candidate should: - Have experience in scraping content from websites - Be adept at data management, specifically CSV files - Be proficient in handling both texts and images and store in easy way to manage and retrieve A strong track record of similar projects will be a plus. This job requires accuracy and attention to detail. I look forward to seeing your ...

I'm looking for a skilled developer who can bring our Figma design to life. The goal of our app is to provide a unique interactive experience, and we need it to be compatible with both iOS and Android devices. Key Requirements: - Cross-platform development experience - Expertise in front-end development for both iOS and Android - Strong knowledge of Figma Additional Details: - The app will have custom animations, so experience with integrating animations in apps is preferred. - The primary goal of the app is to offer a unique interactive experience, so creativity and a good understanding of user experience are crucial. - We have a clear structure in Figma, so you will need to be able to translate this into a fully functional app. If you have the right skills and expe...

Looking for a proficient video editor with experience in creating engaging and informative technology content. Here's what's necessary: - Skill in creating realistic animated representations - Ability to craft compelling longer videos (more than 10 minutes) - Expertise in editing software Your background in editing educational content will be a major advantage for this role. The objective ...compelling longer videos (more than 10 minutes) - Expertise in editing software Your background in editing educational content will be a major advantage for this role. The objective is to clearly and attractively present complex technology concepts, so prior experience in this area is highly beneficial. If you're adept at translating data into compelling visual storytelling, we'd...

I need an appointments app developed. The app should be compatible with both Android and iOS devices. I want it to have features that allow users to schedule appointments. The main purpose of this app is to provide a platform for managing appointments. Ideal skills and experience for this job include: - Proficiency in Android and iOS app development - Experience with appointment scheduling systems - Understanding of user-friendly interface design - Ability to implement calendar-based functionalities

...Dart 2.19.6 in Android Studio on MacBook. Firebase Projects experience is a must as well as Xcode experience. No upgrades of existing versions will be accepted. Need to provide proof of IDE setup before project is awarded. Also, experience in addressing "Null Safety" issues is a must. Key deliverables will be: - Push notification integration for immediate user updates. - Implementation of login functionalities including a secure user login with username and password and a seamless user registration system. Under user registration, there are two main features that should be incorporated: - User profile creation which should be easy and intuitive. - Enabling users to accept terms and conditions before registration. Ideal candidates should have prior experience in ...

I am looking for a WordPress developer experienced with Oxygen Builder and Metabox. Here are the specifications: - Develop a custom WordPress plugin that integrates Oxygen Builder with the Metabox plugin I'm looking for a way to have a set of Group Fields to pull from a Metabox Settings Panel. And then import/ display them in the Oxygen Repeater. It needs to work exactly like it does with AC...to pull from a Metabox Settings Panel. And then import/ display them in the Oxygen Repeater. It needs to work exactly like it does with ACF. Oxygen is definitely not adding this feature anytime soon. So it needs to work on all Oxygen websites it is installed on. Your understanding of the plugin framework and intricacies of data synchronization is crucial for this job. Looking forward to yo...

I'm in need of a skilled Unity Developer who can create an engaging hypercasual infinite runner game. The game should be designed for both iOS and Android platforms. Key requirements for this project include: - Developing a Cartoonish 3D art style for the game. - Implementing power-ups as a key mechanic. - Implement an infinite runner game, where you control a tank/car and have to avoid incoming obstacles and enemies. - Player should die upon hitting the obstacle - There should be a results screen with earned in-game currency. The ideal freelancer should have: - Proven experience in developing hypercasual games. - Strong grasp of Unity development. - Experience with Unity Gaming Services. - A portfolio that showcases previous mobile game projects. Please include samples of ...

I'm in need of a skilled systems analyst to focus on writing, developing and enhancing a SRS for an Electronic Medical Record (EMR) system. Key experience and skills needed for this project: - Strong background in system analysis. - Proven experience in writing and developing SRS. - Great understanding of logic and authentication. - Proficient in data management and repo...Medical Record (EMR) system. Key experience and skills needed for this project: - Strong background in system analysis. - Proven experience in writing and developing SRS. - Great understanding of logic and authentication. - Proficient in data management and reporting skills. - Prior experience in handling EMR systems is a bonus. Post your hourly rate that you will work for this project. Placeholders bids w...

Looking for a reliable Android developer proficient in Java to design a new application with specific features that fulfill my needs. The ideal candidate would have extensive experience in: - Developing on the Android platform specifically for smartphones. - Implementing social media integration into apps, as this is a vital aspect to my project. - Adding advertising capabilities to apps. Experience with different ad formats and placement strategies would be beneficial. - Redesigning and improving upon User Interface (UI) to create an optimal user experience. In-depth knowledge of Java is crucial, as it's the preferred programming language for this project. Familiarity with in-app purchases and working in offline mode would be a bonus, although not a requirement. This...