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I want a fully-functional calculator that looks and behaves exactly like a normal, basic calculator until I key in a secret passcode. At that moment the interface should slide (or otherwise transition smoothly) into a private gallery where I can import, play, and manage all of my personal videos. The build needs to run natively on both iOS and Android, so please rely on a shared codebase—Flutter or React Native are both fine, as long as you can meet App Store and Play Store guidelines. Security is crucial: once inside the hidden area, users must still authenticate with the same numeric password they used on the calculator screen. Fingerprint or Face ID support is optional for the first version; simple password protection done well is my priority. Visually, I’m after an ordinary, no-frills calculator layout: standard buttons, basic colours, nothing that would hint at a vault behind it. Icons, animations, and any text in the hidden gallery should also stay minimal so the disguise never looks suspicious. Deliverables • Source code and project files for both platforms • A compiled IPA and APK ready for TestFlight / internal testing • Brief documentation that covers build steps, password reset flow, and any libraries used I’ll test by importing several HD videos, locking the app, and confirming they remain invisible everywhere else on the device. If that works flawlessly and the calculator performs normal arithmetic without lag, the job is complete.
Proje No: 40040862
12 teklifler
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12 freelancer bu proje için ortalama ₹5.621 INR teklif veriyor

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer
₹35.000 INR 20 gün içinde
6,7
6,7

As an experienced Flutter and Android developer with over 8 years in the field, I'm confident that I am the right person for the job. My in-depth understanding of mobile app development and the integration of third-party APIs, such as Google, Facebook, PayPal, and Twilio, make me exceptionally well-suited to handle your project requirements. I've successfully completed over 150 major projects to date, and during this time, secrecy and security have always been paramount. Irrespective of whether it is a Face ID or simple password protection, my highest priority has always been to ensure uncompromised security measures. Leveraging my extensive experience with Flutter and Android technologies, we'll make sure your hidden gallery remains absolutely concealed from any unauthorized access. Apart from my technical skills, I am genuinely passionate about coding - it's not just my job; it's a hobby for me. I assure you that along with delivering efficient results on-time with meticulous documentation, I'll also provide regular updates and continuous communication - because trust and effective discussion are vital for project success. As an added bonus, I also play football so if you're interested or ever need to talk about code over a game of football- feel free to approach me. Thank you for your time and consideration - I look forward to working with you!
₹10.000 INR 7 gün içinde
6,2
6,2

With an extensive background in mobile app development, specifically with Android and iOS on various frameworks including Flutter and React Native, I am uniquely qualified to tackle your Hidden Video Calculator App project. My understanding of both the technical landscape and the specific guidelines set by App Store and Play Store is a direct asset to your project, ensuring not only maximum functionality but also a seamless experience for end-users. Attentive to detail, especially regarding security, I will ensure your personal videos remain exclusively for your eyes always. My experience with API integration will lend itself perfectly to allowing your app to authenticate users across its functional segments using the same numeric password employed on the calculator screen. Equally important is creating a visually mundane interface - one that does not rouse any suspicion while serving its purpose. By leveraging my expertise in HTML and CSS, I can deliver an ordinary-looking calculator layout that won't hint at any secrets. Similarly, my skills in responsive web design can guarantee it adapts perfectly to all screen sizes from desktops to mobile devices.
₹600 INR 7 gün içinde
3,2
3,2

Good morning , How are you? I hope this proposal finds you well. I have checked your project (Hidden Video Calculator App if i share anyone this apk then he was also able to play that videos), which lies in the field of my certification & experience. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills like; User Interface / IA, iPhone, React Native, Objective C, Mobile App Development, Flutter, App Development, Android, Mobile Development and iOS Development:, as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.
₹1.500 INR 1 gün içinde
0,0
0,0

HI, We are a new firm with experienced workforce and professional work culture, we always keep our client in loop and make sure the client opinion is taken in each step from designing to coding. We can make your described apps and requirement in a sturdy but light and scalable platform which will ensure a smooth sailing app service and no hiccups in the way . We will make sure the app is ready and compatible for future updates and full functional and optimized for use. We also provide a 6 month free revisit and free 6 month maintenance and performance check(Small changes on request) which give you that extra peace of mind. If you have any concerns/doubt or want to proceed to make the apps please initiate chat. regards AHROBYTES
₹9.000 INR 7 gün içinde
0,0
0,0

I bring 13 years of professional experience delivering high-quality results. I have strong expertise in all the required skills listed for this project. My approach ensures accuracy, clear communication, and timely delivery. I am confident I can exceed your expectations with efficient, reliable work. Looking forward to contributing to your project—ready to begin immediately.
₹1.050 INR 7 gün içinde
0,0
0,0

Hello! I’m interested in building your hidden video calculator app. As a beginner software developer, I focus on creating clean, functional, and user-friendly applications. I can develop a fully working calculator interface that securely hides and stores videos in the background, ensuring smooth performance and privacy. I’m committed to clear communication, meeting deadlines, and delivering exactly what you’re looking for. I’d be happy to discuss the features you need and start right away!
₹1.250 INR 4 gün içinde
0,0
0,0

Hello! I’m interested in developing your calculator app. I can create a clean, responsive, and user-friendly calculator with all essential functions (addition, subtraction, multiplication, division) and any extra features you require. Delivery will be fast, with proper design and smooth performance. I’m ready to start immediately. Thank you!
₹1.200 INR 3 gün içinde
0,0
0,0

Hi, I’m Fouad Essam, and I’d love to build your dual-purpose calculator + hidden video vault app. I will use Flutter to deliver a single shared codebase running natively on both iOS and Android, fully aligned with App Store and Play Store guidelines. The app will function exactly like a normal calculator with a clean, simple layout. When you enter the secret passcode, it will smoothly transition into a private gallery where you can import, play, and manage HD videos. All videos will be stored in the app’s private directory so they remain completely invisible to other apps. Security is a priority: the hidden gallery will be locked behind the same numeric password you use on the calculator screen. Optional biometric support can be added later. The UI and animations will stay minimal to maintain the disguise. Deliverables include: • Full Flutter source code • IPA and APK ready for TestFlight/internal testing • Documentation covering build steps, password flow, and libraries used Before delivery, I will test all calculator operations, verify smooth transitions, and ensure HD videos remain private and inaccessible outside the app. I’m ready to start and deliver a clean, secure, and fully functional build.
₹600 INR 7 gün içinde
0,0
0,0

Hi, I understand exactly what you need — a normal, clean calculator that secretly opens a hidden video vault when a passcode is entered. I can build this in Flutter so it runs perfectly on both iOS and Android with one codebase. What I will deliver A fully working basic calculator with normal arithmetic functions Smooth transition to a hidden private video gallery after entering the secret passcode Ability to import, play, and manage HD videos inside the vault The same numeric password required again inside the vault Clean UI — no suspicious icons, texts, or animations APK + IPA for internal testing Full source code + documentation Security Password stored securely Videos visible only inside the vault Locked state hides all media from device gallery Optional biometric auth (if needed later) Tech stack ✔ Flutter ✔ Secure storage ✔ Video player ✔ Smooth page transition animation Why choose me Experience with hidden vault / secure apps Pixel-perfect UI Fast delivery Clean coding + documentation Works on both stores I can deliver the complete project in 4 days. Let’s get started.
₹1.200 INR 4 gün içinde
0,0
0,0

I will build a dual-platform calculator app that functions normally but unlocks a hidden, password-protected video vault via a secret code. Clean UI, secure access, smooth transitions, and full iOS/Android builds with source and documentation included.
₹5.000 INR 10 gün içinde
0,0
0,0

Ranchi, India
Ara 6, 2025 tarihinden bu yana üye
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