Browse categories
English
$
USD
Connect to your AI
I will build a screen time app blocker with secure nfc for ios and android
Habibur Rahman
Level 1
5.0
5.0
About this gig
Want to launch a viral Focus, Digital Wellbeing, or Distraction-Blocking App like Opal, Brick, Jomo, or One Sec for iOS & Android?
With 9+ years of experience and 100+ completed projects, I turn your app idea into a polished, ready-to-launch product on the App Store and Google Play.
WHAT I WILL BUILD FOR YOU:
- iOS & Android App Blocker: True system-level blocking (using Apple Screen Time API & Family Controls) that stops distractions even if the user closes the app.
- Secure NFC Read/Write Lock (Brick Style): Tap a physical NFC tag or QR card to lock/unlock apps. I program secure NFC read/write protection so users can only unlock the app using your official brand tagsnever cheap knockoffs!
- Custom Focus Modes: Strict lockouts, daily screen time limits, schedules, Pomodoro timers, and custom App Blocked screens.
- Ready to Make Money: User accounts, streak tracking, and subscription paywalls (RevenueCat) built right in.
WHY CHOOSE ME:
- Store Approval Help: Step-by-step guidance to get app store and play store approval.
- Complete Delivery: Design to store launch + full source code.
Message me now for a free, clear project plan!
Get to know Habibur Rahman
Habibur Rahman
Expert iOS Android and Flutter Developer for AI and Web Apps
Level 1
- FromBangladesh
- Member sinceMay 2019
- Avg. response time1 hour
- Last delivery6 days
Languages
Bengali, English
Got an app idea? I take it from concept to App Store & Google Play launch.
I build native iOS (Swift/SwiftUI) & Android apps (Kotlin), cross-platform Flutter apps, and custom AI solutions. Full backend, REST APIs, Firebase, and Web Admin Dashboards included—you get a complete ecosystem, not just half a product.
9+ years experience. 100+ projects completed. 100% 5-star reviews. Zero missed deadlines.
Startups hire me when they need one reliable architect—no handoffs, no jargon.
Message me for a clear plan within 24 hours.
Among my clients
RAZN
My Portfolio
Other Mobile App Development Services I Offer
FAQ
Can you build an app like Opal, Jomo, or Brick (NFC blocker)?
Yes! I build both software-based focus/screen time blockers (like Opal/Jomo) and physical NFC tag / QR-code triggered app blockers (like Brick) using Apple's Screen Time API and CoreNFC.
How do I get Apple approval for the Screen Time / Family Controls API?
Apple requires a special entitlement request for FamilyControls (Individual/Self-Control or Family mode). I provide exact guidance and templates so your Apple Developer account gets approved smoothly.
Does the app blocking still work if the user force-closes the app?
Yes! Because I use Apple's native ManagedSettings and DeviceActivity extensions (and native Android background services), restrictions stay active at the OS level even if the app is quit or the phone restarts.
Can we customize the "App Blocked" shield screen on iOS?
Yes, using ShieldConfigurationDataSource and ShieldActionDelegate, I customize the shield icon, title, subtitle, button styles, and button actions to match your brand.
Can you integrate NFC tags or QR codes to lock and unlock apps?
Yes! I integrate CoreNFC (iOS) and Android NFC APIs so users can tap a physical NFC card/tag to toggle strict focus mode on or off, including pairing specific tag UIDs to their account.
Can you add subscriptions and paywalls?
Yes, I integrate RevenueCat, Superwall, or StoreKit 2 for free trials, monthly/annual subscriptions, and high-converting onboarding paywalls.
Will I receive the full source code?
Yes, 100% of the source code is delivered with clean architecture and documentation across all packages.
Can you publish the app to the App Store and Google Play?
Yes, I handle TestFlight setup, App Store Connect submission, and Google Play deployment until your app is live.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
Z 
zunayedarifin
Bangladesh
Habibur was a pleasure to work with. He was friendly, professional, and communicated clearly throughout the project. He understood my requirements quickly, delivered exactly what I needed, and completed everything on schedule. The quality of his work was excellent, and he was always happy to answer questions...
$50
Price
3 days
Duration
Helpful?W way2tushar
Bangladesh
I had a really great experience working with **Habibur**. From the beginning, communication was easy and he always responded quickly with clear updates. He understood exactly what I needed and delivered everything professionally and on time. The quality of his work exceeded my expectations, and he even...
$50
Price
2 days
Duration
Helpful?P patrickwazzup
Philippines
Amazing working with Habibur! Very professional final result! Im very happy with it! Thank you!
$200-$400
Price
2 weeks
Duration
Helpful?R raz_van_ch
Netherlands
I worked with Habibur for the second time and I’m very satisfied with the experience. He was fast, highly responsive, and extremely available throughout the entire process. He understood my requests clearly and implemented the revisions exactly as needed, with great attention to detail. His professionalism...
$200-$400
Price
4 days
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
Z zunayedarifin
Bangladesh
Habibur was a pleasure to work with. He was friendly, professional, and communicated clearly throughout the project. He understood my requirements quickly, delivered exactly what I needed, and completed everything on schedule. The quality of his work was excellent, and he was always happy to answer questions...
$50
Price
3 days
Duration
Helpful?W way2tushar
Bangladesh
I had a really great experience working with **Habibur**. From the beginning, communication was easy and he always responded quickly with clear updates. He understood exactly what I needed and delivered everything professionally and on time. The quality of his work exceeded my expectations, and he even...
$50
Price
2 days
Duration
Helpful?P patrickwazzup
Philippines
Amazing working with Habibur! Very professional final result! Im very happy with it! Thank you!
$200-$400
Price
2 weeks
Duration
Helpful?R raz_van_ch
Netherlands
I worked with Habibur for the second time and I’m very satisfied with the experience. He was fast, highly responsive, and extremely available throughout the entire process. He understood my requests clearly and implemented the revisions exactly as needed, with great attention to detail. His professionalism...
$200-$400
Price
4 days
Duration
Helpful?
