# Back Ext. Counter! vs Plank Timer

The clearest difference is ads: Plank Timer at none against Back Ext. Counter!'s shown. Plank Timer also leads on update cadence (every 2 days vs every 4 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Back Ext. Counter! ships an update every 4 months, Plank Timer every 2 days. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Back Ext. Counter! | Plank Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Size | 31 MB | 24 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Intersect](https://appshunter.io/developer/641416964) | [Yoshiaki Kawano](https://appshunter.io/developer/1872698182) |

## What reviewers say

### Back Ext. Counter!

[App page](https://appshunter.io/ios/app/back-ext-counter/id1365383530)

**In-app purchases:** none


### Plank Timer

[App page](https://appshunter.io/ios/app/plank-timer-core-workout-log/id6758397433)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back Ext. Counter! free?

Back Ext. Counter! is free to download, with no in-app purchases.

### Is Plank Timer free?

Plank Timer is free to download, with no in-app purchases.

### Do Back Ext. Counter! or Plank Timer have ads?

Back Ext. Counter! shows ads; Plank Timer does not.

### Which is updated more often, Back Ext. Counter! or Plank Timer?

Back Ext. Counter! ships an update every 4 months, and Plank Timer every 2 days. Most recently, Back Ext. Counter! was updated on September 29, 2026 and Plank Timer on September 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*