Lact8
BEN REEVE Health & Fitness iPhoneiPadiPod touch
Lact8 is a free Health & Fitness app for iPhone and iPad by BEN REEVE. Requires iOS 16.0. Updated January 11, 2026.
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Jan 11
- 2026 · v1.1
Screenshots
About Lact8
Lact8 helps athletes identify their lactate thresholds (LT1 and LT2) from step test data and calculate personalized training zones. Features: • Record lactate, heart rate, and power/pace from step tests • Automatic threshold detection using proven methods • Multiple zone systems (3-Zone, 7-Zone Touretski, 8-Zone Couzens) • Track threshold progression over time • Export data as CSV, JSON, or Markdown Perfect for cyclists, runners, and triathletes who want data-driven training zones based on their own physiology.
What’s new
Version 1.1 · Updated January 11, 2026
Minor bugfixes
App privacy
The developer, BEN REEVE, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.