# AcuNote vs PreventAge

The clearest difference is in-app purchases: PreventAge at none against AcuNote's 2. PreventAge also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

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

AcuNote ships an update every 3 weeks, PreventAge every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | AcuNote | PreventAge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 276 MB | 36 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Yangguang Ma](https://appshunter.io/developer/670518380) | [PreventAge](https://appshunter.io/developer/1895339968) |

## What reviewers say

### AcuNote

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

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

**In-app purchases (2)**

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


### PreventAge

[App page](https://appshunter.io/ios/app/preventage/id6763492388)

**In-app purchases:** none


## Frequently asked questions

### Is AcuNote free?

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

### Is PreventAge free?

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

### Do AcuNote or PreventAge have ads?

AcuNote shows ads; PreventAge does not.

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

AcuNote ships an update every 3 weeks, and PreventAge every 9 days. Most recently, AcuNote was updated on October 24, 2026 and PreventAge on October 24, 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.*