This app automatically detects and counts your exercise repetitions and measures how close you are to muscle failure during each set. It provides instant feedback with a score and color-coded tiers, helping you optimize your training for muscle growth. Requires an Apple Watch and iPhone.
1.0.5
September 9, 2026
What's new in 1.0.5? - Riven now saves to Apple Health — every session shows up in Health → Workouts with heart rate and calories, and counts towards your rings. - Improvements to the algorithm and the models. - Improvements to the content copies. - Bug fixes.
MoreUnlimited workouts per week. Billed yearly.
No, Riven is ad-free and does not use third-party trackers, ensuring a focused user experience.
Riven requires an Apple Watch Series 6 or later (watchOS 10+) paired with an iPhone running iOS 17 or later. There is no iPhone-only mode.
Riven uses the Apple Watch's motion sensors to analyze velocity loss and rep consistency, which are scientifically validated metrics for estimating proximity to muscle failure.
Riven offers a free tier with 1 workout per week. Pro unlocks 2 workouts per week for $2.99/month or $29.99/year, while Unlimited provides unlimited workouts for $9.99/month or $79.99/year.
Riven's rep counting is based on advanced motion sensor analysis, aiming for high accuracy by detecting exercise and counting reps automatically without manual input.
Yes, Riven works on all exercises, including barbells, dumbbells, cables, machines, and bodyweight exercises, with no additional hardware needed.
The latest version of Riven is 1.0.4, and it was last updated on August 31, 2026, indicating regular maintenance and potential feature additions.
Based on the available data, Riven has a perfect 5.0-star rating from one review, suggesting a highly positive initial user reception.
