21 Days – AI Challenge
ahmet celik Lifestyle iPhoneiPadiPod touch
21 Days – AI Challenge is a paid Lifestyle app for iPhone and iPad by ahmet celik. Requires iOS 13.0. Updated January 7, 2026.
- Price
- 0.29 USD
- on the App Store
- Size
- 27 MB
- Age 4+
- Updated
- Jan 7
- 2026 · v1.0.3
Screenshots
About 21 Days – AI Challenge
21 Days – AI Challenge helps you build habits that last. Log a short note each day for 21 days. At the end, our AI analyzes your journey and gives you a personalized summary with insights and tips. Features: • Daily notes to track your progress • AI-generated analysis after 21 days • 100 unique badges to unlock • Dark mode & customizable themes • Simple stats to keep you motivated Stay consistent for 21 days and see the difference. Your future self will thank you.
What’s new
Version 1.0.3 · Updated January 7, 2026
- Added banner and interstitial ads - Added a one-time "Remove Ads" in-app purchase ($1.99) - Bug fixes and performance improvements
App privacy
The developer, ahmet celik, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| 21 Days – AI Challenge | – | 0.29 USD | January 7, 2026 | |
| Pocket Money - Fast tracker | – | Free | Dec 29, 2025 | Compare |
| PondaBook: Home Renovation | 5.0 / 5 (3) | Free | Sep 8, 2026 | Compare |
| Cross Stitch Patterns | – | 1.99 USD | Jan 2, 2026 | Compare |
| MomentSnap: Photo Memory Vault | – | Free | Dec 31, 2025 | Compare |
| Budget-IQ | – | Free | Sep 30, 2026 | Compare |
| GrowWise | 5.0 / 5 (2) | Free | Aug 28, 2026 | Compare |