KeplerFit uses your phone camera to count reps and analyse your workout form in real time — no wearable needed. Snap a photo of your meal and AI estimates calories, protein, carbs and fats in seconds. Built by a former elite Muay Thai athlete (IFMA World silver medallist), not a typical tech founder. I built this because I know what people get wrong in fitness — and it's almost never laziness. It's lack of feedback. Features: camera-based form analysis, photo calorie counting, personalised.
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Maker
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Hey Product Hunt! 👋 I'm Murat, the founder. Former Muay Thai world silver medallist turned fitness-tech builder. Would love your honest feedback — what feature would you try first?
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Cool to see the form analysis without a wearable. One thing I'd love is a quick voice feedback mode where the app calls out cues mid-set, like reminding me to keep my back flat or elbows in, since looking at the screen between reps breaks my flow. Would make the form coaching way more useful in real time.
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Maker
@saniyen0nk This is brilliant feedback, Saniye — you're right, looking at the screen mid-set breaks the flow. Voice cues are already on the roadmap, and hearing this confirms the priority. Thank you!
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Maker
@saniyen0nk Update for you, Saniye — voice coaching is built and coming in the next release. Worth explaining why it took a while: I had audio cues in an earlier build and pulled them out, because the app kept repeating the same correction every few frames and it was genuinely annoying mid-set. The fix was making it speak only when the error actually changes, with a 5-second cooldown per error type, plus one short confirmation when you fix it. So it behaves like a coach who says "knees out" once and then shuts up until something else needs saying. Thanks for pushing on this one. If you want to check it when it drops: https://keplerfit.com/en/
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Tried the rep counter on a few sets of squats and was honestly surprised it caught my knee caving in without me wearing anything. Calorie snap feature felt quick too.
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Maker
@levent39344 Thanks Levent! That knee-caving detection is exactly what I built this for — it's the most common squat mistake I saw as a coach. Glad the calorie snap felt fast too!
Cool to see the form analysis without a wearable. One thing I'd love is a quick voice feedback mode where the app calls out cues mid-set, like reminding me to keep my back flat or elbows in, since looking at the screen between reps breaks my flow. Would make the form coaching way more useful in real time.
@saniyen0nk This is brilliant feedback, Saniye — you're right, looking at the screen mid-set breaks the flow. Voice cues are already on the roadmap, and hearing this confirms the priority. Thank you!
@saniyen0nk Update for you, Saniye — voice coaching is built and coming in the next release. Worth explaining why it took a while: I had audio cues in an earlier build and pulled them out, because the app kept repeating the same correction every few frames and it was genuinely annoying mid-set. The fix was making it speak only when the error actually changes, with a 5-second cooldown per error type, plus one short confirmation when you fix it. So it behaves like a coach who says "knees out" once and then shuts up until something else needs saying. Thanks for pushing on this one. If you want to check it when it drops: https://keplerfit.com/en/
Tried the rep counter on a few sets of squats and was honestly surprised it caught my knee caving in without me wearing anything. Calorie snap feature felt quick too.
@levent39344 Thanks Levent! That knee-caving detection is exactly what I built this for — it's the most common squat mistake I saw as a coach. Glad the calorie snap felt fast too!