iOS app that corrects your form in real time using your phone's camera
My friends and I made an app that uses your phone's camera to track and improve your form. It'll give you visual and verbal feedback for every rep in real time, ensuring accountability. https://apps.apple.com/us/app/firefly-fitness/id6464440707 (No, we don’t store or view any camera footage as you're working out.) The challenges and programs are free to try, no sign-ups or subscription required. (We do ask that you sign-up to save your stats). Just swipe down on the paywall. As a heads up, challenges and programs have pre-set strictness, so you’ll need to…
iOS app that corrects your form in real time using your phone's camera launched on March 11, 2025 with 45 votes, #561 of 7,215 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
This iOS app uses your phone's camera to monitor exercise form and provide real-time visual and verbal feedback during workouts. Designed for fitness enthusiasts seeking form correction and accountability, it offers free challenges and programs without requiring signup. The app features story-based workouts with progressive difficulty levels and badge rewards. Camera footage is not stored or viewed. Users can save stats by creating an account, with preset strictness levels ensuring proper form execution.
written from the facts on this page · September 2026
From the sources
Never guess your workouts with Firefly Fitness, an app that corrects your exercise form in real time as you complete your weekly plan. Get personalized workouts and non-judgmental guidance anytime, anywhere.
Firefly Fitness watches your form in real time and corrects it on the spot, no guesswork or wasted reps. A very motivating coach, and actually an app that respects it if, for example, you only want to train five minutes a day with no equipment at all. Really impressed with how easy it was to follow. Thumbs up from me 👍 I would do my morning stretches by following Youtube. Now, I feel much better knowing that I have something to check my form. Before, I didn't know if I was doing it right and it felt awkward. I'm not serious about getting jacked or anything like that. Just want to be healthy. So it's nice to have something that gives me a daily plan and pushes me to do better. "Squat down…from firefly.fitness
In the maker’s words, at launch
My friends and I made an app that uses your phone's camera to track and improve your form. It'll give you visual and verbal feedback for every rep in real time, ensuring accountability. https://apps.apple.com/us/app/firefly-fitness/id6464440707 (No, we don’t store or view any camera…
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I made a mobile app and game where you workout to level up2024 · fittestfire.com · ▲22Hi, I’ve been working on a workout logging mobile app and game to motivate myself to workout called Fittest Fire. Logging workouts in the mobile app gives you points which are used in the game to increase damage, health, speed, etc. The mobile apps are native Kotlin / Swift and have been released. The game is currently in demo status but has the level up system in place. You can easily skip the account creation process for the mobile apps and play around with it first. In that case, you can only save exercises locally. If you have an account, you can save exercises online and get…
Source: Show HN post ↗ · launch text quoted in part
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