# AcuNote vs Acu

The clearest difference is in-app purchases: Acu at none against AcuNote's 2. Acu also leads on ads (none vs shown). AcuNote's advantage is iOS requirement (14.0 vs 16.4). On price, update cadence and device support there is nothing between them.

Both are free to download. AcuNote sells 2 in-app purchases, starting at $1.99 per month. Acu asks for nothing beyond the download.

AcuNote ships an update every 3 weeks, Acu every 5 weeks. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | AcuNote | Acu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 276 MB | 1.7 GB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Yangguang Ma](https://appshunter.io/developer/670518380) | [Shanghai University of Traditional Chinese Medicine](https://appshunter.io/developer/1212219864) |

## What reviewers say

### AcuNote

[App page](https://appshunter.io/ios/app/acunote/id6740513110)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $1.99 / Month | $1.99 | per month |
| $19.99 / Year | $19.99 | per year |


### Acu

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

**In-app purchases:** none


## Frequently asked questions

### Is AcuNote free?

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

### Is Acu free?

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

### Do AcuNote or Acu have ads?

AcuNote shows ads; Acu does not.

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

AcuNote ships an update every 3 weeks, and Acu every 5 weeks. Most recently, AcuNote was updated on September 10, 2026 and Acu on September 7, 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.*