This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.



250+ iOS apps & games curated and reviewed
The best atcode apps and games on iPhone average 4.1★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Sep 2026 | ||
| 2 | Free | 4.4★ (10) | No | No | Sep 2026 | ||
| 3 | Free | 3.8★ (75) | No | No | Aug 2026 | ||
| 4 | Free | 2.7★ (12) | No | No | Sep 2026 | ||
| 5 | Free | 4.9★ (83) | No | No | Sep 2026 | ||
| 6 | Free | 4.9★ (79) | Yes | Yes | Jul 2026 | ||
| 7 | Free | 4.8★ (578) | No | No | Sep 2026 | ||
| 8 | Free | 4.3★ (6) | Yes | No | Sep 2026 |



This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.






This app acts as a secure bridge for AI coding agents, allowing you to run and continue sessions from your computer on your phone. It supports collaboration, reliable session resuming, and full history access with end-to-end encryption.






This app provides coding challenges, tutorials, and a podcast to help users learn and improve their programming skills. It's designed for beginners and experienced coders alike, offering a comprehensive resource for expanding coding knowledge.