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I need a complete Android application built from the ground up. The core build must run smoothly on current Android versions and include three essential capabilities: secure user authentication (sign-up, login, password reset), timely push notifications, and fully integrated in-app purchases. To keep the project maintainable, clean architecture and readable, well-commented code are priorities. You are welcome to choose the most efficient modern stack—if Firebase Authentication, Firebase Cloud Messaging, and Google Play Billing suit your approach, feel free to use them, but alternative libraries are fine as long as they deliver the same reliability. Deliverables • Production-ready APK and signed AAB • Complete, documented source code in a Git repository • Clear build/run instructions and a brief hand-over session so I can publish updates on my own Once I can log in, receive a test notification, and successfully execute a test purchase on a sandbox account, the job will be considered finished.
Projektin tunnus (ID): 40140372
64 ehdotukset
Etäprojekti
Aktiivinen 28 päivää sitten
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64 freelancerit tarjoavat keskimäärin $19 USD/tunti tätä projektia

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$15 USD 40 päivässä
9,6
9,6

Hello, I understand you need a robust Android application built from scratch, integrating secure user authentication, timely push notifications, and seamless in-app purchases. My approach prioritizes clean architecture and well-commented code to ensure maintainability, using efficient modern technologies like Firebase to deliver a reliable and scalable solution. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas
$18 USD 40 päivässä
8,4
8,4

Hello, Thank you so much for posting this opportunity. It sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your team. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
$20 USD 40 päivässä
6,3
6,3

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Nikhil
$15 USD 40 päivässä
6,3
6,3

I can develop a clean, fully native Android app with secure Firebase Authentication, push notifications via FCM, and integrated Google Play Billing. The build will follow MVVM architecture with well-commented, maintainable code, delivering a production-ready APK/AAB and full source with clear setup instructions.
$20 USD 40 päivässä
5,5
5,5

Hi there,Good afternoon I am Talha. I have read you project details i saw you need help with Java, Mobile App Testing, Mobile App Audit, Android App Development, PhoneGap, Android, Mobile App Development and Mobile Development I am writing to propose an innovative approach to tackle your project. Our proposal centers on delivering creative and effective solutions that will set your project apart. We will present fresh, out-of-the-box ideas that align with your project's objectives, demonstrating how we can achieve remarkable results. Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$25 USD 31 päivässä
5,5
5,5

Hi , I just went through the project description, and I see you are looking for someone experienced in Mobile App Audit, Android, Mobile App Testing, Mobile Development, Android App Development, PhoneGap, Java and Mobile App Development. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Click the 'Chat' button, and I’ll send over the relevant samples immediately for your review. Regards, Abdul Haseeb Siddiqui.
$20 USD 28 päivässä
4,4
4,4

As a seasoned and value-driven mobile development agency, specializing in Android App Development, WellSpring Infotech is uniquely positioned to handle your project with the utmost dedication. Our decade-long experience includes building scalable custom software for startups and SMEs in various industries, including healthcare, fintech, eCommerce, and more - areas that require robust security and sophisticated technology. Our proficiency extends to the core technologies your project demands such as Java and Firebase, both of which are necessary for smooth authentication processes, push notifications, and in-app purchases secured by Google Play Billing. We've also gained immense fluency in crafting clean and well-documented code to ensure ease of maintenance and future developments. Moreover, our commitment does not end with delivering the production-ready APK and signed AAB but providing you with comprehensive documentation and a brief hand-over session so that you have complete control over the app for any updates independently. By choosing us, you are selecting a collaborative partner well-equipped to meet your requirements to the most exceptional standards. Thanks....
$15 USD 40 päivässä
3,8
3,8

Hi Alfando, Just wrapped up a comprehensive Android app with secure user authentication, push notifications, and in-app purchases for a client – leveraging Firebase Authentication, Firebase Cloud Messaging, and Google Play Billing for a seamless experience. Exactly the robust setup you're after, with a focus on maintainability and scalability. We’re the perfect fit for this project. I specialize in crafting clean, efficient Android apps using a modern stack, including Firebase services, and ensuring a smooth user experience with timely push notifications and secure in-app transactions. Multiple 5-star reviews on complex Android projects, including secure authentication and transactional systems. Happy to jump on a quick call to discuss your project details. Worst case, you get a free consultation and some solid ideas. Chris | Lead Developer | Novatech
$20 USD 14 päivässä
3,4
3,4

Hi, I’m Mayur, a highly skilled mobile app developer with extensive experience in designing, developing, and delivering high-quality, scalable Android applications. Over the years, I have worked on a wide range of mobile projects, from simple utility apps to complex e-commerce platforms, always prioritizing performance, security, and a seamless user experience. My expertise lies in building robust applications with clean architecture, well-structured code, and intuitive interfaces that not only meet but exceed client expectations. After carefully reviewing your project requirements, I am confident in my ability to deliver a complete Android application that is production-ready, highly maintainable, and fully functional. I understand the importance of secure user authentication, timely push notifications, and smooth in-app purchase integration, and I am experienced in implementing these features using modern, reliable technologies such as Firebase Authentication, Firebase Cloud Messaging, and Google Play Billing. Beyond functionality, I focus on writing clean, readable, and well-commented code to ensure long-term maintainability and scalability. I also provide detailed documentation and guidance, so you can manage future updates confidently. My goal is to create an app that not only fulfills your current needs but also provides a foundation for future growth.
$20 USD 40 päivässä
3,6
3,6

Hi, I’m Karthik, an Android developer with 10+ years of experience building production-grade mobile apps with secure authentication, notifications, and in-app purchases. I can build your Android app from scratch using a clean, maintainable architecture (MVVM / clean layers) with well-commented Kotlin code, so future updates are straightforward. What I’ll implement: • Secure user auth (sign-up, login, password reset) • Push notifications with reliable delivery • Fully integrated Google Play in-app purchases (sandbox tested) • Smooth performance on current Android versions Tech approach (recommended): • Kotlin + Android Jetpack • Firebase Auth (or equivalent) • Firebase Cloud Messaging • Google Play Billing Library • Clean architecture with proper separation of concerns Deliverables: • Production-ready APK + signed AAB • Complete source code in Git with documentation • Clear build/run instructions • Brief hand-over session for self-maintenance Acceptance: Successful login, test push notification, and sandbox purchase. I focus on stability, clarity, and Play-Store-ready delivery. Ready to start immediately. Regards, Karthik Android App Developer 10+ Years Experience
$30 USD 40 päivässä
3,2
3,2

I NEVER USE AI FOR BIDDING! You need a modern Android app with secure auth, push notifications, and in-app purchases, built with clean code and full documentation. I have built and delivered exactly this type of app, focusing on production-level code and smooth integration of all required features. Looking forward to discussing more details. Stack: Kotlin, Android Jetpack, Firebase Authentication, Firebase Cloud Messaging, Google Play Billing, MVVM architecture, Git Deliverables: APK, signed AAB, documented source code, handover session
$20 USD 1 päivässä
2,7
2,7

Hi, I understand you need a robust Android application built from scratch, featuring secure user authentication, push notifications, and seamless in-app purchases. With extensive experience in Android development using Java and Firebase services, I can ensure the app is efficient, maintainable, and easy to update. I will implement Firebase Authentication for secure sign-ups and logins, Firebase Cloud Messaging for reliable push notifications, and Google Play Billing for smooth in-app purchases, all wrapped in clean architecture with thoroughly commented code. I will deliver a production-ready signed AAB and APK, a fully documented Git repository, and provide clear build instructions along with a hand-over session to enable your independent app publishing and updates. I suggest a timeline of 10 days to cover development, testing, and delivery with confident quality. Looking forward to working on this project and helping you launch a seamless app experience. Are there any specific design or UI guidelines you want me to follow for the app? Best regards,
$15 USD 28 päivässä
2,6
2,6

I already see a clean way to execute this. I specialize in translating high-level client ideas into clear, actionable project plans and writing concise, human proposals that actually win work. Your need for a short, personalized, and professional proposal template that still feels tailored to each [Client] align perfectly with my skills. I’m confident I can create a structure you can reuse while sounding natural and specific every time. You want a clean and professional proposal that feels human, avoids fluff, and quickly reassures the client that you understand their needs and have a concrete way to help. The tone needs to be confident but not pushy, and flexible enough to work with different project Titles and Descriptions without sounding generic. I’d focus on designing a reusable proposal framework built around your typical projects: a sharp opening line, one paragraph showing understanding of the client’s context, one paragraph outlining how you’d approach execution, and a closing that invites a response. I’ll also make sure it’s easy for you to swap in [Title], [Description], and [Client] so it stays fast but still feels custom. Quick question before I suggest an approach: Do you usually get detailed briefs from clients (like clear scopes and deliverables), or are the Titles and Descriptions often vague and require you to infer their real needs? Lets chat more about your project, worst case you walk away with a free strategy session Regards
$20 USD 7 päivässä
1,9
1,9

Hi , Good evening! I am skilled mobile programmer with skills including Android App Development, Mobile App Audit, Android, Java, PhoneGap, Mobile App Testing, Mobile Development and Mobile App Development. Please send a message to discuss more regarding this project. Have a great time
$20 USD 17 päivässä
0,0
0,0

Hey , Good morning! I am professional mobile programmer with skills including Mobile Development, Mobile App Development, Mobile App Audit, Java, Mobile App Testing, Android, PhoneGap and Android App Development. Please send a message to discuss more regarding this project. Have a great time
$50 USD 34 päivässä
0,0
0,0

Hello, As someone who specialized in full stack web and app development, I have ample experience working with Android app development using Java. I can assure you of a clean, maintainable and efficient codebase that integrates all your required functionalities smoothly. I am conversant with Firebase authentication and cloud messaging, your preferred stack for streamlined performance, but I am also adaptable enough to work with any alternatives you may feel more comfortable with. One of the highlights of my work is my ability to develop apps quickly without compromising their reliability and scalability. For instance, I can develop the user’s secure authentication system swiftly without any snags; your users will be able to enjoy hassle-free features like sign-up, log-in, and password reset. In terms of in-app purchases, my aim is to ensure easy test runs on a sandbox account before going live, providing a seamless transaction experience. Moreover, my expansive skillset extends beyond app development; as someone experienced in machine-learning and AI integration into traditional systems, I bring an extra level of depth to my work. Though not explicitly mentioned in your project description, should you wish to explore ways to marry your Android app with AI systems for more personalized user experiences or even data-driven notifications in the future, it's something within my capacity. From start to finish, I’ll ensure your complete s Thanks!
$19 USD 30 päivässä
0,0
0,0

Hi there! ? I am an experienced Full-Stack Developer with expertise in Android App Development and Mobile Solutions. I have successfully built and launched secure Android applications with user authentication, push notifications, and in-app purchases. My focus on clean architecture and well-commented code ensures the project's maintainability and readability. I propose to develop your Android application using modern tech stacks like Firebase Authentication, Firebase Cloud Messaging, and Google Play Billing for reliability. I will provide you with a production-ready APK, signed AAB, and documented source code in a Git repository. Additionally, I will include clear instructions for build/run and conduct a brief hand-over session for your ease of use. Let's work together to create a user-friendly app where you can log in securely, receive notifications, and make test purchases seamlessly. Looking forward to delivering a high-quality solution to meet your requirements. How do you envision integrating user authentication, push notifications, and in-app purchases for your app?
$15 USD 27 päivässä
0,0
0,0

Hi there, I have carefully reviewed your project requirements and understand the task clearly. After analyzing the details and expected outcome, I am submitting this proposal with a focused and practical approach to your Android application project. For this Android app development project, I propose to architect a robust solution with the essential features of user authentication, push notifications, and in-app purchases. The core build will be tailored to run efficiently on current Android versions. I will prioritize clean architecture, well-commented code, and maintainability throughout the development process. To ensure security and reliability, I plan to utilize advanced technologies such as Firebase Authentication, Firebase Cloud Messaging, and Google Play Billing. These technologies will streamline the development process and enhance the user experience. The deliverables will include a production-ready APK and signed AAB along with comprehensive documentation in a Git repository. I will provide clear build and run instructions, accompanied by a brief hand-over session for seamless updates and maintenance. Once the app enables smooth user authentication, delivers test notifications, and enables successful test purchases on a sandbox account, the project will be considered successfully completed. Let's discuss in detail through chat.
$25 USD 12 päivässä
0,0
0,0

Being a seasoned developer with extensive experience in Android App Development, I assure you that I have the necessary professional and technical skills to complete your project successfully. My proficient grasp of Java and Mobile App Development has facilitated my development of many clean, scalable, and well-documented codes as so desired for your project. Additionally, having been in the tech field for 5+ years, I've developed the ability to see beyond code, instead focusing on business-driven solutions that align with your long-term goals. My capabilities stretch beyond just building an app; I'm adept at establishing secure user authentications using the likes of Firebase Authentication, something we can integrate seamlessly in your project. This similarity of approach makes our working process even smoother by promoting concurrent understanding. To further enhance security measures and user experience for you, I can incorporate Firebase Cloud Messaging for timely push notifications and Google Play Billing for in-app purchases. Moreover, my profile showcases not just ample Android development but also AI development experience. This comes as a bonus to your project as innovative AI technologies continually emerge as a key differentiator. By selecting me for this project, you gain access to my full suite of proficiencies including AWS cloud deployment and CI/CD pipelines which greatly facilitate app scaling and maintainability.
$20 USD 40 päivässä
0,0
0,0

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