# CatKat vs ThenObserve

The clearest difference is in-app purchases: CatKat at none against ThenObserve's 5. CatKat also leads on update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ThenObserve sells 5 in-app purchases, starting at $5.00 per month. CatKat asks for nothing beyond the download.

CatKat ships an update weekly, ThenObserve every 2 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CatKat | ThenObserve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/catkat/id6504735422/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 28 MB | 42 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Jake Horner](https://appshunter.io/developer/1753596242) | [Then LLC](https://appshunter.io/developer/1780419006) |

## What reviewers say

### CatKat

[App page](https://appshunter.io/ios/app/catkat/id6504735422)

This app offers a personalized approach to meal tracking for eating disorder recovery. Users can fully customize meal times, types, and associated questions to fit their individual recovery journey.

**Highlights:** Customizable meal times, Customizable meal types, Customizable meal questions, Personalized recovery tracking, User-defined meal structure

**Features:** macOS Compatibility

**In-app purchases:** none


### ThenObserve

[App page](https://appshunter.io/ios/app/thenobserve-trigger-tracker/id6756628335)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThenObserve+ | $5.00 | per month |
| ThenBecome: The Life-changing Suite | $15.00 | per month |
| ThenObserve+ Annual | $50.00 | per year |
| ThenBecome: The Life-changing Suite | $150.00 | per year |
| ThenObserve+ Founder | $100.00 | one-time |


## Frequently asked questions

### Is CatKat free?

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

### Is ThenObserve free?

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

### Do CatKat or ThenObserve have ads?

Neither CatKat nor ThenObserve shows ads.

### Which is updated more often, CatKat or ThenObserve?

CatKat ships an update weekly, and ThenObserve every 2 weeks. Most recently, CatKat was updated on October 3, 2026 and ThenObserve on October 10, 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.*