# ScribeZero vs aira

The clearest difference is in-app purchases: aira at none against ScribeZero's 2. ScribeZero's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. ScribeZero sells 2 in-app purchases, starting at $19.99 per month. aira asks for nothing beyond the download.

ScribeZero ships an update every 8 days, aira every 2 weeks. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ScribeZero | aira |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Size | 369 MB | 56 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [DILEK HUNER SAFKAN](https://appshunter.io/developer/1827713615) | [John Lim](https://appshunter.io/developer/1886852946) |

## What reviewers say

### ScribeZero

[App page](https://appshunter.io/ios/app/scribezero-private-ai-notes/id6760656929)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $19.99 | per month |
| Annual Subscription | $149.99 | per year |


### aira

[App page](https://appshunter.io/ios/app/aira-private-second-brain/id6760924946)

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

**In-app purchases:** none


## Frequently asked questions

### Is ScribeZero free?

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

### Is aira free?

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

### Do ScribeZero or aira have ads?

Neither ScribeZero nor aira shows ads.

### Which is updated more often, ScribeZero or aira?

ScribeZero ships an update every 8 days, and aira every 2 weeks. Most recently, ScribeZero was updated on September 17, 2026 and aira on September 27, 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.*