# AIMailMind vs QuillBrief

The clearest difference is in-app purchases: AIMailMind at none against QuillBrief's 4. AIMailMind also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. QuillBrief sells 4 in-app purchases, starting at $2.99 per 7 days. AIMailMind asks for nothing beyond the download.

AIMailMind ships an update every 4 days, QuillBrief every 3 weeks. The most recent releases landed on October 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | AIMailMind | QuillBrief |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 7 MB | 20 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Singularity Games Co., Ltd.](https://appshunter.io/developer/1872617566) | [恺 和](https://appshunter.io/developer/6775504275) |

## What reviewers say

### AIMailMind

[App page](https://appshunter.io/ios/app/aimailmind/id6762063402)

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

**In-app purchases:** none


### QuillBrief

[App page](https://appshunter.io/ios/app/quillbrief/id6778332798)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QuillBrief Plus Weekly | $2.99 | per 7 days |
| Quill Brief Plus Monthly | $9.99 | per month |
| Quill Brief Pro Monthly | $19.99 | per month |
| Quill Brief Ultra Monthly | $39.99 | per month |


## Frequently asked questions

### Is AIMailMind free?

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

### Is QuillBrief free?

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

### Do AIMailMind or QuillBrief have ads?

Neither AIMailMind nor QuillBrief shows ads.

### Which is updated more often, AIMailMind or QuillBrief?

AIMailMind ships an update every 4 days, and QuillBrief every 3 weeks. Most recently, AIMailMind was updated on October 7, 2026 and QuillBrief on September 26, 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.*