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OnlyUI Android Wallpaper App Developer Needed I am building an Android wallpaper app called OnlyUI. The app already has a strong foundation and many systems are completed. I am looking for a long-term developer who can help improve features, optimize performance, fix bugs, and help scale the app in future versions. Current app features: • Cloud wallpaper system using GitHub + jsDelivr • Favorites system • Wallpaper preview and apply system • Dynamic moving watermark protection • Screenshot blocking for premium protection • Maintenance mode system • Force update system • Category filtering • Local imported wallpapers • Performance optimization systems • Premium modern UI What I need help with: • Android Java development • UI polishing • Performance optimization • Stability improvements • Cloud/API improvements • Feature development • Future AI recommendation system • Bug fixing • Scaling the app architecture Requirements: • Experience with Android Studio • Good knowledge of Java • Experience with APIs/cloud systems • Understanding of optimization and smooth UI • Long-term interest preferred Payment / Partnership: Instead of upfront large payments, the selected developer will receive 40% revenue share from the app earnings in future growth stages. This is a startup-style partnership opportunity for someone interested in building a premium wallpaper platform together. Please share: • Your Android app experience • Previous projects/apps • Estimated availability • Why you are interested in this project The app is currently in active MVP development.
Project ID: 40449657
21 proposals
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Active 2 days ago
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21 freelancers are bidding on average ₹298 INR/hour for this job

Namaste, I’d love to support you in growing OnlyUI into a premium wallpaper platform. Your current system already has a strong foundation, and I can help improve stability, polish the UI, optimize performance, and scale future features efficiently. My Experience: . Android Studio and Java development . API and cloud-based integrations . Performance optimization and smooth UI handling . Bug fixing and scalable app architecture . Experience working on long-term Android projects I’m interested because OnlyUI already has unique systems like dynamic watermarking, premium protection, and cloud delivery, which gives strong growth potential. I’m comfortable with long-term collaboration and startup-style partnerships. Availability: . Available for regular development and ongoing improvements Best regards, Amit Gupta Freelancer Profiles: [https://www.freelancer.com/u/iamamitgupta1994](https://www.freelancer.com/u/iamamitgupta1994) [https://www.freelancer.com/u/KavyaTechNepal](https://www.freelancer.com/u/KavyaTechNepal)
₹350 INR in 40 days
9.7
9.7

I can help scale OnlyUI into a high-performance premium wallpaper platform by improving app stability, optimizing UI/UX, strengthening the cloud delivery system, and building future-ready architecture for AI-based wallpaper recommendations. I have strong experience with Android Studio, Java, API integrations, cloud-based systems, UI optimization, and scalable mobile app development. Your existing MVP already has an impressive foundation, and I’m interested in contributing long-term to refine performance, add advanced features, and help grow the platform professionally. I can assist with: • UI polishing and smooth animations • Performance and memory optimization • API/cloud improvements using GitHub + CDN systems • Stability fixes and architecture scaling • Premium feature enhancements and future AI integration • Long-term maintenance and feature expansion I’m comfortable with startup-style collaboration and revenue-share partnerships when the vision and product potential are strong. I’d be happy to discuss the roadmap, current codebase structure, and future scaling plans for OnlyUI. Looking forward to building this together.
₹450 INR in 40 days
7.1
7.1

Hello there, we are a team of Senior Full Stack Java, Automation developers and we can do this project in no time. Thanks Ashish Kumar.
₹500 INR in 40 days
5.7
5.7

Hello, I reviewed your requirement and I’m confident that I can complete this job professionally and within your expected budget and timeline. I have hands-on experience in similar projects and always ensure high-quality work, quick communication, and on-time delivery. I’m ready to start immediately and would be happy to discuss the details further. Looking forward to connecting with you in DM. Thank you
₹100 INR in 40 days
4.8
4.8

Namaste, I’d love to support you in growing OnlyUI into a premium wallpaper platform. Your current system already has a strong foundation, and I can help improve stability, polish the UI, optimize performance, and scale future features efficiently. My Experience: . Android Studio and Java development . API and cloud-based integrations . Performance optimization and smooth UI handling . Bug fixing and scalable app architecture . Experience working on long-term Android projects I’m interested because OnlyUI already has unique systems like dynamic watermarking, premium protection, and cloud delivery, which gives strong growth potential. I’m comfortable with long-term collaboration and startup-style partnerships. Availability: . Available for regular development and ongoing improvements Best regards, Amit Gupta Freelancer Profiles: [https://www.freelancer.com/u/iamamitgupta1994](https://www.freelancer.com/u/iamamitgupta1994) [https://www.freelancer.com/u/KavyaTechNepal](https://www.freelancer.com/u/KavyaTechNepal)
₹350 INR in 40 days
4.3
4.3

As an experienced Android app developer and with integral skills in cloud systems and APIs, I believe I am the right person to take your OnlyUI app to new levels. I have the proficiency to optimize performance, scale the architecture, and importantly turn debugging issues into seamless experiences. Having built scalable web and mobile applications for over three years, some of my standout projects include AI automation & chatbot integration; SaaS platforms; web development in React, Laravel; and Mobile apps in Android using Flutter. This exposure has sharpened my skills in navigating complex tasks, ramping up optimization strategies and delivering high-quality solutions - all with a focus on user-centered design. Additionally, tagged with my technical capabilities is a proven commitment to long-term partnerships and efficient communication. As a result, you can expect not only expert teamwork but also unwavering support as we aim to build an outstandingly performant and revenue-prosperous wallpaper app together. I am excited by this project's potential for growth and I would love to spearhead this journey with you.
₹100 INR in 70 days
3.1
3.1

Hello, I can help you improve and scale the OnlyUI Android wallpaper app as a long-term development partner. I have experience working with Android app development, including Java-based projects, API integration, UI improvements, and performance optimization for smooth mobile experiences. How I can support your app: • UI polishing and improving overall user experience • Performance optimization for faster loading and smoother scrolling • Bug fixing and stability improvements • API/cloud improvements (GitHub + jsDelivr integration enhancements) • Feature development and architecture scaling for future growth • Preparing groundwork for future AI-based recommendation features I understand your app already has a strong MVP foundation, so I will focus on improving stability, speed, and scalability rather than rebuilding existing systems. Although my profile is new, I am focused on consistent long-term collaboration and clean, maintainable code that supports future monetization and expansion. Available to start immediately. Regards, Vk
₹250 INR in 40 days
3.2
3.2

I recently completed a project improving an Android app’s performance and scalability, which resulted in smoother user interactions and 30 percent faster load times. I am new to Freelancer, but I have real experience contributing to large scale projects at companies like Google and Stripe, where I helped optimize app features and backend systems for reliability and speed. Your project requires a clean, seamless, and efficient app that can scale while maintaining a user friendly interface. I understand the need to enhance performance, polish UI, and develop reliable cloud and API features for future growth. I work by focusing on simplicity, clear structure, and reliability to build solutions that last. I prioritize doing things right the first time to avoid unnecessary complexity and technical debt. I am ready to start contributing to OnlyUI and help scale it into a premium wallpaper platform. If this aligns with your project, feel free to reach out to discuss scope and pricing. Regards Patrick
₹300 INR in 90 days
2.6
2.6

Hi, I am an experienced Flutter & Android developer with 6+ years of experience in mobile application development. I have worked on government and private projects and developed 20+ apps. I can help you with: Flutter & Android app development API integration Firebase integration Bug fixing & app optimization UI implementation MVVM architecture REST API, JSON parsing Push notifications Play Store deployment Why choose me? Clean and maintainable code Fast communication On-time delivery Long-term support Immediate start I am confident I can complete your project efficiently and according to your requirements. Looking forward to working with you. Thanks, Sapna Sharma
₹250 INR in 40 days
0.0
0.0

Hello, Your OnlyUI project genuinely looks interesting, especially the cloud wallpaper architecture, premium protection systems, and long-term scaling vision. I have experience in Android/Flutter app development, API integration, Firebase/backend connectivity, UI optimization, and performance-focused mobile architecture. I am comfortable working with Android Studio, debugging production issues, improving UI smoothness, and optimizing app stability for long-term growth. What interested me most is that the app already has advanced systems like: • GitHub + jsDelivr cloud delivery • Dynamic watermark protection • Force update & maintenance systems • Premium UI structure • Performance optimization focus I would love to contribute to: • UI polishing and smoother UX • Performance optimization • Feature scaling • API/cloud improvements • Architecture cleanup and future maintainability • AI-based recommendation features in future versions Availability: I can contribute consistently on a long-term basis and actively help improve the app through future updates and scaling stages. I’m also comfortable working in startup-style collaboration and growing the product together instead of focusing only on short-term tasks. Looking forward to discussing the project further.
₹300 INR in 40 days
0.0
0.0

Hello, I am interested in working on the OnlyUI Android Wallpaper App project. I have experience in Android app development using Java and Android Studio, including UI improvement, bug fixing, API integration, and performance optimization. I have worked on Android applications with modern UI designs, Firebase/API integrations, RecyclerView optimization, network handling, and smooth user experience improvements. I am also familiar with handling wallpapers, local storage, image loading optimization, and app stability improvements. Your project looks very interesting because it already has strong systems like cloud wallpapers, premium UI, favorites, and security protection. I would like to contribute to improving the app performance, polishing the UI, fixing issues, and helping scale future features including AI recommendations. Availability: • Available for long-term collaboration • Can work 30–40 hours per week • Ready to start immediately Why I am interested: I enjoy building modern Android applications and your wallpaper platform has strong future potential. I would love to grow together as part of a startup-style partnership and contribute to future versions of the app. Looking forward to discussing the project further. Thank you, Komal K.
₹250 INR in 40 days
0.0
0.0

I have solid Android Java experience covering RecyclerView optimisation, cloud API integration, image loading pipelines, and premium UI work, all of which map directly to what OnlyUI needs at this stage. I have reviewed the feature list and the foundation sounds well-structured. The GitHub and jsDelivr cloud system, watermark protection, screenshot blocking, and force update logic are the kind of systems I have worked with before, so I can contribute meaningfully from day one without a long onboarding period. I am genuinely interested in the long-term angle here. A wallpaper app with a solid MVP, active development, and a clear monetisation direction is a reasonable base to build on together. I understand this is a revenue share arrangement rather than upfront payment, and I am open to that model provided we define the partnership terms clearly in writing before work begins, including what counts as revenue, how it is tracked, and how the share is paid out. My availability is roughly 20 to 25 hours per week. I would start with a codebase review, identify the highest-impact areas for performance and stability, and work through improvements in short focused cycles with regular updates. The AI recommendation system you mentioned for future versions is an interesting addition and something I can help architect when the time comes.
₹250 INR in 40 days
0.0
0.0

Rajasthan, India
Member since Feb 26, 2026
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