# Smart Note AI note taker vs PDF AI

The clearest difference is ads: Smart Note AI note taker at none against PDF AI's shown. Smart Note AI note taker also leads on iOS requirement (13.0 vs 15.0). PDF AI's advantage is update cadence (every 6 weeks vs every 6 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Smart Note AI note taker sells 3 in-app purchases, starting at $3.99 per 7 days and PDF AI sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Smart Note AI note taker ships an update every 6 months, PDF AI every 6 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Smart Note AI note taker | PDF AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Size | 104 MB | 7 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shital Gorasiya](https://appshunter.io/developer/1737199158) | [TECH LOGIC HOST](https://appshunter.io/developer/1335938195) |

## What reviewers say

### Smart Note AI note taker

[App page](https://appshunter.io/ios/app/smart-note-ai-note-taker/id6752647494)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Monthly Premium | $7.99 | per month |
| Yearly Premium | $34.99 | per year |


### PDF AI

[App page](https://appshunter.io/ios/app/pdf-ai-chat-summarize-and-ocr/id6758303451)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Doc Pro Weekly | $2.99 | per 7 days |
| PDF Doc Pro Monthly | $7.99 | per month |
| PDF Doc Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Smart Note AI note taker free?

Smart Note AI note taker is free to download, with in-app purchases available.

### Is PDF AI free?

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

### Do Smart Note AI note taker or PDF AI have ads?

PDF AI shows ads; Smart Note AI note taker does not.

### Which is updated more often, Smart Note AI note taker or PDF AI?

Smart Note AI note taker ships an update every 6 months, and PDF AI every 6 weeks. Most recently, Smart Note AI note taker was updated on October 25, 2026 and PDF AI on October 28, 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.*