# OOS vs AIidol

The clearest difference is in-app purchases: OOS at none against AIidol's 7. OOS also leads on iOS requirement (11.0 vs 15). On price, update cadence, ads and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | OOS | AIidol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 17 MB | 93 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [家回 罗](https://appshunter.io/developer/1478554929) | [Chongqing Hengsheng Network Co., Ltd.](https://appshunter.io/developer/1573107375) |

## What reviewers say

### OOS

[App page](https://appshunter.io/ios/app/oos/id1617065381)

**Features:** macOS Compatibility

**In-app purchases:** none


### AIidol

[App page](https://appshunter.io/ios/app/aiidol/id6451098601)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Benefit Card | $0.99 | one-time |
| 2元积分 | $0.99 | one-time |
| 5元积分 | $0.99 | one-time |
| 10元积分 | $0.99 | one-time |
| 30-Day Card | $3.99 | one-time |
| 60-Day Card | $6.99 | one-time |
| 90-Day Card | $9.99 | one-time |


## Frequently asked questions

### Is OOS free?

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

### Is AIidol free?

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

### Do OOS or AIidol have ads?

Neither OOS nor AIidol shows ads.

### Which is updated more often, OOS or AIidol?

OOS ships an update fortnightly, and AIidol fortnightly. Most recently, OOS was updated on September 15, 2026 and AIidol on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*