Your Apple Watch knows when you've truly hit muscle failure
Riven turns your Apple Watch into a muscle failure tracker. It auto-detects your exercise, counts reps hands-free, and measures rep speed loss — the science-backed signal of true muscle fatigue — to tell you if you actually trained to failure or stopped reps short. Built for hypertrophy and strength training: no camera, no bar sensor, no extra hardware — just the watch you already own. Get a 0–100 failure score after every set, so every workout drives real muscle growth.
Hey Product Hunt 👋
Here's an uncomfortable truth about the gym: most people never actually train to failure. They stop on discomfort, boredom, or a rep number they picked in advance — usually a few reps before the muscle is actually done. And since pushing close to failure is what makes muscle grow, that gap is why so many people train for years and look the same.
Until now the only way to measure this was lab equipment — expensive, impractical, and definitely not something you'd use at a commercial gym.
So I built Riven on something millions of people already wear: the Apple Watch.
You just train. Riven detects your exercise, counts your reps, and at the end of every set tells you the one thing no app has ever told you — did you actually reach failure, or did you leave reps in the tank?
No camera. No extra sensors. No tapping mid-set. Just the watch you already own.
If you lift, I'd genuinely love your feedback — and ask me anything in the comments, I'll be here all day!
About Riven on Product Hunt
“Your Apple Watch knows when you've truly hit muscle failure”
Riven launched on Product Hunt on June 11th, 2026 and earned 99 upvotes and 18 comments, placing #20 on the daily leaderboard. Riven turns your Apple Watch into a muscle failure tracker. It auto-detects your exercise, counts reps hands-free, and measures rep speed loss — the science-backed signal of true muscle fatigue — to tell you if you actually trained to failure or stopped reps short. Built for hypertrophy and strength training: no camera, no bar sensor, no extra hardware — just the watch you already own. Get a 0–100 failure score after every set, so every workout drives real muscle growth.
On the analytics side, Riven competes within Health & Fitness, Wearables and Fitness — topics that collectively have 266.9k followers on Product Hunt. The dashboard above tracks how Riven performed against the three products that launched closest to it on the same day.
Who hunted Riven?
Riven was hunted by Baraa Bilal. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Riven including community comment highlights and product details, visit the product overview.
Baraa Bilal