(shameless self-promotion but) We're actually building something just like this. We're calling it Formguru, here's an example of my squat in action: https://www.formguru.fitness/video/c96fa975-fd9e-4912-8f60-1....

Right now it's more focused on form feedback, but adding live audio cues is on our roadmap. I'd love to know what other features you'd want us to build.

Wow, this is super cool. I love how it shows exact angles and traces the path of the bar. With that weight, you should be doing full reps though ;)

This is really cool! Well done

I have the tempo.fit - It's a giant video screen with camera that does exactly this. It's a great piece of kit.

Wow, that's fascinating, first time I stumble upon the company. Seems like Peloton for weight lifting

Does the detection work well? Is it worth the price?

In terms reps counting. Yes, it works quite well :)

What I want is an app that screams at me like a drill sergeant: "Let's go, you got 10 more to go! Keep up!"

Not really screaming but in VRWorkout the computer voice combined with the visual cues are as direct as it gets :) So if you need some motivation to get your bodyweight training done maybe check it out ( https://vrworkout.at )

That looks promising, thanks!

That's basically what Peloton, Apple Fitness, and whatever other competitors to those are.

I’d go for a Peloton but for weight lifting for sure! I know there are some of those but haven’t found any for free weights, can’t say I have been looking too hard yet however.

Edit: tempo.fit seems interesting!

I am working on an app that does this: automatically counts reps from camera. The counting for basic exercises like squats, dips, push ups, pull ups, kb swings is decently accurate. No voice at the moment.

You can email me at my HN username @gmail.com, would be great to hear what you think!

Current TestFlight: https://testflight.apple.com/join/3OLYPP6V

Runtastic had apps that used to do this, where you held the phone and it counted the reps, push-ups, sit-ups etc. There were apps for each activity, which gave you reps, a count, and a timer, along with cooldown, with voice prompts.

Then Adidas bought them out and closed the individual apps and released a replacement for the main Runtastic app.

There were numerous threads on reddit asking for similar replacements, and I don't think there has been one. So I gave up looking.

I saw this exact thing pop up on ProductHunt at some point in the last year. Sorry, I don't remember the name, but it was an iOS app.

My Garmin watch (Forerunner) does this (well, not audio prompts). It will start rep count when I start the exercise and end it when I stop and guess the exercise. The exercise guessing is spotty at best but you can also pre-program the workout and use is that way. Rep count is much accurate (if not perfect).

If you have some extra income I love my Tonal https://www.tonal.com/