# Acu vs SciMaster

The clearest difference is update cadence: Acu at every 5 weeks against SciMaster's every 3 months. 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.

Acu ships an update every 5 weeks, SciMaster every 3 months. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Acu | SciMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 1.7 GB | 37 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai University of Traditional Chinese Medicine](https://appshunter.io/developer/1212219864) | [ATOMBEAT TECHNOLOGY PTE. LTD.](https://appshunter.io/developer/1812552907) |

## What reviewers say

### Acu

[App page](https://appshunter.io/ios/app/acu-assistant/id6754641620)

**In-app purchases:** none


### SciMaster

[App page](https://appshunter.io/ios/app/scimaster/id6758187749)

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

**In-app purchases:** none


## Frequently asked questions

### Is Acu free?

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

### Is SciMaster free?

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

### Do Acu or SciMaster have ads?

Neither Acu nor SciMaster shows ads.

### Which is updated more often, Acu or SciMaster?

Acu ships an update every 5 weeks, and SciMaster every 3 months. Most recently, Acu was updated on October 9, 2026 and SciMaster on October 2, 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.*