# Memo 3D Kidz vs Oops World

The clearest difference is price: Oops World at Free against Memo 3D Kidz's $1.99. Oops World also leads on update cadence (every 3 days vs every 35 months). Memo 3D Kidz's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Oops World is free to download; Memo 3D Kidz costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Memo 3D Kidz ships an update every 35 months, Oops World every 3 days. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Memo 3D Kidz | Oops World |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 3 days** |
| Size | 69 MB | 234 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philippe Zay](https://appshunter.io/developer/1200498230) | [Robix Games](https://appshunter.io/developer/6797398975) |

## What reviewers say

### Memo 3D Kidz

[App page](https://appshunter.io/ios/app/memo-3d-kidz/id1510327729)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oops World

[App page](https://appshunter.io/ios/app/oops-world/id6801128300)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memo 3D Kidz free?

Memo 3D Kidz costs $1.99, with no in-app purchases.

### Is Oops World free?

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

### Do Memo 3D Kidz or Oops World have ads?

Oops World shows ads; Memo 3D Kidz does not.

### Which is updated more often, Memo 3D Kidz or Oops World?

Memo 3D Kidz ships an update every 35 months, and Oops World every 3 days. Most recently, Memo 3D Kidz was updated on October 13, 2026 and Oops World on October 4, 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.*