# E vs CatDo

The clearest difference is in-app purchases: CatDo at none against E's 7. CatDo also leads on ads (none vs shown). E's advantage is update cadence (fortnightly vs every 10 months) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. E sells 7 one-off in-app purchases. CatDo asks for nothing beyond the download.

E ships an update fortnightly, CatDo every 10 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | E | CatDo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eroomy-pomodorotodoroutine/id6743204130/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 433 MB | 117 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QKINGGAMES](https://appshunter.io/developer/1090811947) | [Dinu Stefan Rusu](https://appshunter.io/developer/1697162965) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/eroomy-pomodorotodoroutine/id6743204130)

Enhance your focus with a charming productivity app that combines a to-do list and Pomodoro timer. Cute characters and soothing lo-fi music create an immersive environment to help you concentrate on tasks.

**Highlights:** Focus with cute characters, Customizable themes, Variety of lo-fi music, Integrated to-do list, Pomodoro timer, White noise for immersion

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Coins | $0.99 | one-time |
| 100 Coins | $1.99 | one-time |
| Remove ads | $2.99 | one-time |
| 200 Coins | $3.99 | one-time |
| 400 Coins | $7.99 | one-time |
| 800 Coins | $15.99 | one-time |
| 1000 Coins | $19.99 | one-time |


### CatDo

[App page](https://appshunter.io/ios/app/catdo-your-study-buddy/id6751812918)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is CatDo free?

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

### Do E or CatDo have ads?

E shows ads; CatDo does not.

### Which is updated more often, E or CatDo?

E ships an update fortnightly, and CatDo every 10 months. Most recently, E was updated on October 10, 2026 and CatDo on October 7, 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.*