# Scinst vs KuaFu

The clearest difference is in-app purchases: Scinst at none against KuaFu's 1. Scinst also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KuaFu sells 1 one-off in-app purchase. Scinst asks for nothing beyond the download.

Scinst ships an update every 9 days, KuaFu every 10 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Scinst | KuaFu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Size | 102 MB | 30 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [深圳市山约科技有限公司](https://appshunter.io/developer/1642027976) | [Chapman Ou](https://appshunter.io/developer/1850669583) |

## What reviewers say

### Scinst

[App page](https://appshunter.io/ios/app/scinst/id6544793042)

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

**In-app purchases:** none


### KuaFu

[App page](https://appshunter.io/ios/app/kuafu-workout-video-dash/id6773011526)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KuaFu Pro Lifetime | $5.99 | one-time |


## Frequently asked questions

### Is Scinst free?

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

### Is KuaFu free?

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

### Do Scinst or KuaFu have ads?

Neither Scinst nor KuaFu shows ads.

### Which is updated more often, Scinst or KuaFu?

Scinst ships an update every 9 days, and KuaFu every 10 days. Most recently, Scinst was updated on November 4, 2026 and KuaFu on October 31, 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.*