What it does

HRV4Training offers heart-rate variability records and training-related views using supported camera or sensor inputs; an account is required and it does not give medical advice.

Pricing

United States App Store download: $9.99 (USD), checked 2026-10-02. An upfront purchase is required.

Sources & verification

HRV4Training: developer's App Store listing (United States)Primary source

Last verified: 2 October 2026. Features not listed here may be unverified.

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