# Zempie vs ooin

The clearest difference is in-app purchases: Zempie at none against ooin's 2. Zempie also leads on update cadence (every 3 days vs fortnightly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. ooin sells 2 in-app purchases, starting at $3.99 per month. Zempie asks for nothing beyond the download.

Zempie ships an update every 3 days, ooin fortnightly. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Zempie | ooin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 64 MB | 32 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [FROMTHERED](https://appshunter.io/developer/1646382595) | [heyvia](https://appshunter.io/developer/1894993366) |

## What reviewers say

### Zempie

[App page](https://appshunter.io/ios/app/zempie/id6449574630)

**Features:** macOS Compatibility

**In-app purchases:** none


### ooin

[App page](https://appshunter.io/ios/app/ooin/id6762748155)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ooin Premium Monthly | $3.99 | per month |
| ooin Premium Yearly | $34.99 | per year |


## Frequently asked questions

### Is Zempie free?

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

### Is ooin free?

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

### Do Zempie or ooin have ads?

Neither Zempie nor ooin shows ads.

### Which is updated more often, Zempie or ooin?

Zempie ships an update every 3 days, and ooin fortnightly. Most recently, Zempie was updated on October 3, 2026 and ooin on October 24, 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.*