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.



249+ iOS apps curated and reviewed
AtCoder Alarm is the household name in atcoder alarm, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | Sep 2026 | ||
| 2 | Free | 5.0★ (9) | No | No | Oct 2026 | ||
| 3 | Free | 1.0★ (1) | No | No | Oct 2026 | ||
| 4 | Free | — | Yes | No | Oct 2026 | ||
| 5 | Free | 3.9★ (7) | No | Yes | Oct 2026 | ||
| 6 | Free | 4.1★ (1.9K) | No | Yes | Oct 2026 | ||
| 7 | Free | 4.1★ (925) | No | No | Oct 2026 | ||
| 8 | Free | — | No | Yes | Aug 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 utility app provides a live countdown widget for your alarms, displaying remaining sleep time directly on your lock screen or home screen. It prioritizes privacy with an offline, tracker-free design and offers custom audio options.






This offline alarm clock announces each alarm's label aloud using your device's voice. It prioritizes privacy with no ads, account requirements, or data collection. Designed for ease of use, even when groggy, it offers customizable repeat schedules and bypass options for silent modes.