# Reader AI vs PiMark

The clearest difference is update cadence: Reader AI at every 3 weeks against PiMark's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Reader AI sells 8 in-app purchases, starting at $6.99 per 7 days and PiMark sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Reader AI ships an update every 3 weeks, PiMark every 6 weeks. The most recent releases landed on October 2, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Reader AI | PiMark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 15 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Thinking Systems LLC](https://appshunter.io/developer/1882858307) | [PERSONAL ASSISTANT INTELLIGENCE PTE. LTD.](https://appshunter.io/developer/1768514166) |

## What reviewers say

### Reader AI

[App page](https://appshunter.io/ios/app/reader-ai-markdown-reader/id6760142758)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader AI Weekly Access | $6.99 | per 7 days |
| Reader AI Monthly Access | $14.99 | per month |
| Reader AI Yearly Access | $89.99 | per year |
| 100 Credits | $4.99 | one-time |
| 300 Credits | $7.99 | one-time |
| 750 Credits | $14.99 | one-time |
| 500 Credits | $19.99 | one-time |
| 2000 Credits | $59.99 | one-time |


### PiMark

[App page](https://appshunter.io/ios/app/pimark/id6761587176)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Supporter Tip | $2.99 | one-time |
| Generous Tip | $4.99 | one-time |


## Frequently asked questions

### Is Reader AI free?

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

### Is PiMark free?

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

### Do Reader AI or PiMark have ads?

Neither Reader AI nor PiMark shows ads.

### Which is updated more often, Reader AI or PiMark?

Reader AI ships an update every 3 weeks, and PiMark every 6 weeks. Most recently, Reader AI was updated on October 2, 2026 and PiMark on September 19, 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.*