# Taby vs PDF Expert

The clearest difference is ads: PDF Expert at none against Taby's shown. PDF Expert also leads on iOS requirement (16.6 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Taby sells 2 in-app purchases, starting at $4.90 per month and PDF Expert sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Taby ships an update every 5 days, PDF Expert every 9 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Taby | PDF Expert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 27 MB | 47 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [THE COOL COMPANY](https://appshunter.io/developer/1861739654) | [泽强 蒲](https://appshunter.io/developer/1505153238) |

## What reviewers say

### Taby

[App page](https://appshunter.io/ios/app/taby-simple-notes-and-ideas/id6758339122)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Taby Monthly | $4.90 | per month |
| Super Taby Yearly | $29.99 | per year |


### PDF Expert

[App page](https://appshunter.io/ios/app/pdf-expert-reader-and-editor/id6796615625)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Expert Premium Monthly | $3.99 | per month |
| PDF Expert Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Taby free?

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

### Is PDF Expert free?

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

### Do Taby or PDF Expert have ads?

Taby shows ads; PDF Expert does not.

### Which is updated more often, Taby or PDF Expert?

Taby ships an update every 5 days, and PDF Expert every 9 days. Most recently, Taby was updated on October 7, 2026 and PDF Expert on October 14, 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.*