UltraTrainer for Android

I am a professional martial artist and have used Ultra Trainer for years. Yeah, there’s a bug or two but there is no other random interval timer in existence that I know of, and it’s invaluable for solo training with a heavy bag. You record whatever combos you want and then while you work the bag UT makes you do them at random times. This is a game changer for building reaction time and adaptability. Without the app, you do a combo when you’re ready on your time, but with it you are forced to react just like you would to changing circumstances in a fight. I wish there was a dedicated hardware unit that would do the same thing but as is, Ultra Trainer does it’s job admirably. If you are concerned with it’s integration with your music library, you aren’t training hard enough! Thanks devs. Superior product that fills a real need.

I love this app. It's one of my top apps I use for my training and workouts. But it would seem the app is no longer receiving updates. It has some bugs in it now that I would love to see fixed but isn't getting done. Because of that, I can only give 4 star rating even though this is a 5 star app

When I try to add new drills (eg “slip drill,” “footwork ladder,” and so forth) using the record function the app closes. This is terribly frustrating. Tried to email the app devs but emails bounced back. Please fix!

Can’t get app to work. Crashes every time I try to record in action audio files. Haven’t gotten farther than that as that is something I need this to do for the results I want. Tried to email customer support and no response.

Used to have great Voiceover support. Now however, there some unlabeled buttons in the timers. Please fix. Would be happy to give a 5 star rating otherwise. Android SE iOS 11.1.