
About
Calculate your optimal heart rate training zones using 8 proven formulas. Get personalized zone recommendations for warm-up, fat burn, aerobic, anaerobic, and VO₂ max activities. Train smarter with science-backed insights for maximum fitness results.
What's New in HeartCalc
1.1
October 20, 2025
Liquid Glass for iOS 26 is here!!! - Code optimizations - Bug fixes
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FAQ
What heart rate formulas does HeartCalc use?
HeartCalc utilizes 8 proven formulas, including those by Sally Edwards & Winfried Spanaus, Classic Fox & Haskell, Tanaka & Gellish, Nes research (2013), and gender-specific Gulati & Miller formulas.
What are the different training zones provided by HeartCalc?
HeartCalc provides personalized heart rate zones for Warm-up (50-60%), Fat Burn (60-70%), Aerobic (70-80%), Anaerobic (80-90%), and VO₂ Max (90-100%) to optimize different aspects of your training.
How much does HeartCalc cost?
HeartCalc is a paid application, available for a one-time purchase of $0.49.
Does HeartCalc have ads?
No, HeartCalc is ad-free. The app explicitly states 'No ads, no subscriptions, no data collection' in its description.
What devices is HeartCalc compatible with?
HeartCalc is currently supported on iPhone devices.
How often is HeartCalc updated?
The latest version of HeartCalc is 1.1, and it was last updated on October 20, 2025. This indicates a recent update and ongoing support.
What is the age rating for HeartCalc?
HeartCalc has an age rating of 12+, making it suitable for a wide range of users interested in fitness.
Does HeartCalc integrate with other health apps?
The provided description does not mention integration with other health apps. However, it focuses on providing precise heart rate zone calculations directly within the application.



