# PERC vs 友邻少年

The clearest difference is in-app purchases: PERC at none against 友邻少年's 1. PERC also leads on iOS requirement (10.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 友邻少年 sells 1 one-off in-app purchase. PERC asks for nothing beyond the download.

PERC ships an update every 3 weeks, 友邻少年 monthly. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PERC | 友邻少年 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 50 MB | 174 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市好学多科技有限公司](https://appshunter.io/developer/1568037324) | [友邻优课(北京)教育科技有限公司](https://appshunter.io/developer/1195496595) |

## What reviewers say

### PERC

[App page](https://appshunter.io/ios/app/perc/id1575353864)

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

**In-app purchases:** none


### 友邻少年

[App page](https://appshunter.io/ios/app/id6670519177)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 友邻少年一年订阅 | $324.99 | one-time |


## Frequently asked questions

### Is PERC free?

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

### Is 友邻少年 free?

友邻少年 is free to download, with in-app purchases available.

### Do PERC or 友邻少年 have ads?

Neither PERC nor 友邻少年 shows ads.

### Which is updated more often, PERC or 友邻少年?

PERC ships an update every 3 weeks, and 友邻少年 monthly. Most recently, PERC was updated on October 13, 2026 and 友邻少年 on October 11, 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.*