Tracking since Nov 14 — growth appears once we have a second daily reading.
Update history
1.8Nov 14, 2026
Improve user experience.
Only the current version so far — new entries appear as the app ships updates.
Cardio Diary - Heart Rate is a health & fitness app by lazycattle with 5+ downloads (about 8 estimated). Released Nov 13, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Measure heart rate and HRV with just your camera. No smartwatch needed.”