Features & Capabilities

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.

=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 http://tee-app.com/help/termofservice_en.html

User Growth & Download Statistics

App
By:
Tee-App, Inc.
Rating:
4.00
(2)
Version:
17.0.5 Last updated: 2020-05-27
Version code:
836140751
Creation date:
2013-03-01
Compatible devices:
Size:
34.82MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-09
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Tee-App, Inc.
Apple Apps Store
https://apps.apple.com/us/app/365days-backextension/id594894298

User Reviews

As I’ve stated, the apps good like any of their other apps and also works accurately. But for some reason for this app only, my phone is keep on glitching and “turning off”. It would be great if this got solved!
by Ma*****, 2025-03-06

Good idea, but this app would be better paired with an additional plank set.
by Mj*****, 2013-03-10
View all user reviews ›

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