12+ iOS apps & games curated and reviewed
The best leon grimmeisen apps and games on iPhone average 4.8★ across 12+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (3) | No | Yes | Oct 2026 | |
| 2 |  | Free | 5.0★ (3) | No | No | Aug 2026 | |
| 3 |  | Free | — | No | Yes | Jun 2026 | |
| 4 |  | Free | — | No | No | Jul 2026 | |
| 5 |  | Free | — | No | Yes | Aug 2026 | |
| 6 |  | Free | — | No | Yes | Jul 2026 | |
| 7 |  | Free | — | — | No | Jul 2026 | |
| 8 |  | Free | — | No | Yes | Sep 2026 |
Master the art of calculating weekdays for any date with this comprehensive educational app. Learn a proven technique, practice with interactive exercises, and track your progress to sharpen your mental arithmetic skills.
This interval timer app is designed to enhance your fitness routines, including Tabata, HIIT, and strength training. It allows you to create personalized workouts, track your progress, and stay motivated. Perfect for home workouts and all fitness levels.
