# KEEP PLANK vs CatFit Timer

The clearest difference is in-app purchases: KEEP PLANK at none against CatFit Timer's 3. KEEP PLANK also leads on update cadence (daily vs every 2 weeks). CatFit Timer's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. CatFit Timer sells 3 one-off in-app purchases. KEEP PLANK asks for nothing beyond the download.

KEEP PLANK ships an update daily, CatFit Timer every 2 weeks. The most recent releases landed on September 4, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | KEEP PLANK | CatFit Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/catfit-timer/id6751099867/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | — | Paid |
| Size | 20 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [tatsuyuki shibuya](https://appshunter.io/developer/1639823174) | [宇鹏 王](https://appshunter.io/developer/581656608) |

## What reviewers say

### KEEP PLANK

[App page](https://appshunter.io/ios/app/keep-plank/id6670267717)

**Features:** macOS Compatibility

**In-app purchases:** none


### CatFit Timer

[App page](https://appshunter.io/ios/app/catfit-timer/id6751099867)

A straightforward workout timer for daily exercises like planks, stretching, and interval training. Focus on your workout without distractions or complicated setup. Ideal for building consistent movement habits.

**Highlights:** Minimalist design, Instant start, Workout-oriented timer, Gentle support, No setup required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Support | $0.99 | one-time |
| Buy Me a Coffee | $2.99 | one-time |
| Big Support | $9.99 | one-time |


## Frequently asked questions

### Is KEEP PLANK free?

KEEP PLANK is free to download, with no in-app purchases.

### Is CatFit Timer free?

CatFit Timer is free to download, with in-app purchases available.

### Do KEEP PLANK or CatFit Timer have ads?

KEEP PLANK shows ads; CatFit Timer does not.

### Which is updated more often, KEEP PLANK or CatFit Timer?

KEEP PLANK ships an update daily, and CatFit Timer every 2 weeks. Most recently, KEEP PLANK was updated on September 4, 2026 and CatFit Timer on September 6, 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.*