A BackExtension-training app that you won't give up on.
Train your back muscles every day with your iPhone.
*Users who already have some strength may find the default settings for this app to be a bit low for their strength level. We encourage you to download and try the app to see if it gives you a good workout. And please join our Membership.
Unlock Membership is available through in-app purchasing for Athlete user.
Membership is available with an annual subscription. We have Athlete course($7.99/year), Basic course($3.49/year), and Student course($1.99/year).
You can subscribe and pay through your iTunes account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. Auto-renew may be turned off after purchase by going to the ‘Manage Subscription’ page in settings.
Terms of Service
- Fix subscription server error.
Ratings and ReviewsSee All
Good control and operation.
Good idea, but this app would be better paired with an additional plank set.
- Tee-App, Inc.
- 36.5 MB
- Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
- Age Rating
- © Tee-App, Inc.
- In-App Purchases
- GoalSetting Kit $0.99
- GraphKit(+Ad Free switch) $0.99
- Student Course $1.99
With Family Sharing set up, up to six family members can use this app.