Analyze ECG recordings from compatible health apps on a calibrated grid. Measure key metrics like HRV and QTc, track trends over time, and export detailed PDF reports. All processing is done on-device for enhanced privacy.






250+ iOS apps curated and reviewed
HeartLab is the household name in heart arrhythmia, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.5★ (24) | No | Yes | Oct 2026 | Sponsored | |
| 2 | Free | 3.8★ (20) | Yes | Yes | Oct 2026 | ||
| 3 | Free | 4.5★ (2.5K) | No | Yes | Oct 2026 | ||
| 4 | Free | 4.2★ (111) | No | Yes | Oct 2026 | ||
| 5 | Free | 4.8★ (232K) | No | No | Oct 2026 | ||
| 6 | Free | 4.7★ (1.6K) | No | Yes | Oct 2026 | ||
| 7 | Free | — | No | No | May 2026 | ||
| 8 | Free | 3.6★ (50) | Yes | Yes | Jul 2026 |






Analyze ECG recordings from compatible health apps on a calibrated grid. Measure key metrics like HRV and QTc, track trends over time, and export detailed PDF reports. All processing is done on-device for enhanced privacy.






This app analyzes smartwatch ECG data, providing professional-grade insights into heart rhythm irregularities and heart rate variability. It uses AI to explain results in plain language and generates shareable PDF reports for cardiologists. Data is analyzed locally for complete privacy.






This app enhances your Apple Watch ECG recordings by calculating PQRST to reveal your unique heartbeat signature. It also monitors Heart Rate Variability (HRV), an objective measure of physical readiness, and integrates with Apple Health.






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.