# SANSUI Audio vs Spin4

The clearest difference is update cadence: SANSUI Audio at every 3 days against Spin4's every 10 days. SANSUI Audio also leads on iOS requirement (10.3 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SANSUI Audio ships an update every 3 days, Spin4 every 10 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SANSUI Audio | Spin4 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 38 MB | 2 MB |
| Requires iOS | **10.3** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Aidan Blessindo Electronic Co.,Ltd.](https://appshunter.io/developer/1413008258) | [敏刚 易](https://appshunter.io/developer/1872259103) |

## What reviewers say

### SANSUI Audio

[App page](https://appshunter.io/ios/app/sansui-audio/id1462871600)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spin4

[App page](https://appshunter.io/ios/app/spin4-rotating-connect/id6759542403)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is SANSUI Audio free?

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

### Is Spin4 free?

Spin4 is free to download, with no in-app purchases.

### Do SANSUI Audio or Spin4 have ads?

Neither SANSUI Audio nor Spin4 shows ads.

### Which is updated more often, SANSUI Audio or Spin4?

SANSUI Audio ships an update every 3 days, and Spin4 every 10 days. Most recently, SANSUI Audio was updated on October 26, 2026 and Spin4 on October 25, 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.*