# Back Ext. Counter! — Support Back Extension!

> Support Back Extension! (iPhone/iPad app by Intersect.)

- Source: https://appshunter.io/ios/app/back-ext-counter/id1365383530 (this page in markdown: same URL + `.md`)
- Developer: [Intersect](https://appshunter.io/developer/641416964)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 17+
- Requires: iOS 16.6 · 31 MB
- Languages: American English, Japanese
- Released: 2018-06-05
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/back-ext-counter/id1365383530/reviews.md

## What is Back Ext. Counter!?

This App will support counting of Back Extension. The main function is counting of Back Extension.

Main Function
・Count Back Extension
・Notifications
・Record Active Energy and Workouts to Apple Health.
・Save Results to Photo.
・View history.

How to use
・Put iPhone on floor
・Tap start button.
・Keep your face close to iPhone screen. (Upper part) *
・Or count on iPhone screen tap.

Active Energy
・Ex. METs 3.5, Weight 50 kg, Time 10 min. (3.5 - 1) x 50 x (10 / 60) x 1.05 = 21.86 kcal.

Optional permission requests
・Apple Health: It is used to record data in Apple Health.
・Tracking: It is used to deliver personalized ads to you.
・Notifications: It is used to sending notifications.
・Photo Library: It is used to save image in Photo Library.

Languages
・Japanese, English.

*Dynamic Island devices not supported


## Version history (last 5 releases)

### 8.0.0 — 2026-01-28

Minor bug fixes.

### 7.0.0 — 2025-06-21

Minor bug fixes.

### 6.0.0 — 2023-12-19

Minor bug fixes.

### 5.0.0 — 2022-12-27

Minor bug fixes.

### 4.0.1 — 2022-09-27

Minor bug fixes.

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## More apps by Intersect

- [Mr.Kobayashi Sticker Pack](https://appshunter.io/ios/app/mrkobayashi-sticker-pack/id1155797563)
- [Blood Pressure Calculator](https://appshunter.io/ios/app/blood-pressure-calculator/id1195818087)
- [Plank - 30 Day Challenge](https://appshunter.io/ios/app/plank-30-day-challenge/id1255037496)
- [Sit Up Counter! - Auto Count](https://appshunter.io/ios/app/sit-up-counter-auto-count/id1330485629)
- [Push Up Counter! - Auto Count](https://appshunter.io/ios/app/push-up-counter-auto-count/id1365383641)

All apps by Intersect: https://appshunter.io/developer/641416964

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*