AppMarketSpy › Health & Fitness › Tonus: HRV Readiness
Tonus: HRV Readiness
Recovery & Resonance Breathing
BERKE KAHRAMAN · Health & Fitness
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App info
- Developer
- BERKE KAHRAMAN
- Category
- Health & Fitness, Medical
- Released
- Sep 15, 2026
- Version
- 2.1.1 (Oct 23, 2026)
- Price
- Free
- Size
- 11.5 MB
- Requires
- iOS 17.0
- Age rating
- 9+
- Languages
- English, German, Japanese, Turkish
In-app purchases
| Tonus History | $24.99 |
| Tonus History | $2.99 |
Current prices, App Store US.
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About Tonus: HRV Readiness
With your permission, Tonus reads existing heart rate variability (HRV), resting heart rate and respiratory rate records from Apple Health. It uses available readings for personal baselines and a daily readiness range. You can also continue without connecting to Health. READINESS AND UNCERTAINTY Tonus shows readiness as a range and makes uncertainty visible. If there is not enough data for a readiness result, the app explains what is missing. YOUR PERSONAL BASELINE Tonus shows the baseline calculated from your recent measurements and tracks whether it shifts. You can pin the current baseline while continuing to see drift. Each baseline needs usable measurements from at least 14 days. ON-DEVICE HEALTH, OPTIONAL WEATHER Your health readings, baselines, plans and journal entries are processed on your device. When you explicitly request or refresh a forecast, the coordinates of the region…
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