Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.






113+ iOS apps & games curated and reviewed
Out of 113+ arithmus apps and games on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.2★ (111) | No | Yes | Aug 2026 | ||
| 2 | Free | 4.7★ (58K) | No | Yes | Sep 2026 | ||
| 3 | Free | 4.9★ (229K) | Yes | Yes | Sep 2026 | ||
| 4 | Free | 4.6★ (130K) | Yes | Yes | Sep 2026 | ||
| 5 | Free | 3.6★ (50) | Yes | Yes | Jul 2026 | ||
| 6 | Free | 4.0★ (92) | No | Yes | Jun 2026 | ||
| 7 | Free | 4.3★ (6) | Yes | Yes | Aug 2026 | ||
| 8 | Free | 4.3★ (7) | No | No | May 2026 |






Practice interpreting EKGs in lead II with realistic simulations. Choose rhythms to study or test your knowledge in a game mode. Ideal for healthcare professionals to hone their diagnostic skills.






Easily track your heart rate, blood oxygen, and fitness using your phone's camera. Get instant readings, analyze trends, and access quick workouts to improve your cardiovascular health. Unlock advanced features for deeper insights and personalized health comparisons.






Measure your heart rate and stress levels accurately using your phone's camera. Track trends, view pulse waveforms, and utilize a StandUp test for fitness insights. Integrates with Apple Health.