DeltaTrainer puts a real personal trainer right on your wrist.

DeltaTrainer is a mobile and smartwatch platform that enables a full personal training experience right on your Apple Watch. We have built powerful tracking and motion analysis technology that allows us to offer accountability, live feedback on form/tempo, and completely adaptive workouts. Our real personal trainers use this live feedback in conjunction with our suite of trainer tools to deliver an experience that makes you feel like your trainer is right there with you in the gym.

This app reads and writes workout and health data to/from Apple Health Kit and the Apple Health App.

What’s New

Version 3.5

-Stability Improvements to Workout Logging
-Ability to view calories burned in logs
-The groundwork for Hands-free mode (coming soon!)

Ratings and Reviews

4.8 out of 5
33 Ratings

33 Ratings

aabudins ,


Beta tested the app and have seen it go through updates, etc. I love the concept and am looking forward to seeing it become a big success. It’s great to have a personal trainer to chat with during the workout and beforehand to plan. To not have to think about planning my own workouts reduces the stress associated with gym time for me. I can always add on an exercise or take it away if need be and my trainer and I plan around my physical therapy. The exercises are well represented in the videos and the app tells you about which muscle groups you’re working, gives you tips on doing them right, and calculates your one rep maxes dynamically. The extra push to go to the gym from someone texting me and giving me a workout plan is just what I need to stay accountable. Looking forward to competing virtually! Oh and the statistics are fun.

frezze912 ,

Woop woop

Having a real trainer build my workouts as well as have the flexibility to change things if I don’t have the equipment at my gym is perfect.
Also they were able to build me workouts to do at home so I didn’t miss a day!

sar191 ,


DeltaTrainer is innovative, easy to use, and personalized. If you’re like me and you hate talking to people, but would still benefit from a personal trainer, this is absolutely the way to go


Delta Band Inc.
135.1 MB

Requires iOS 12.1 and watchOS 5.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Medical/Treatment Information


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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