# ExtraDoc vs COTEXPERTISE

The clearest difference is update cadence: COTEXPERTISE at daily against ExtraDoc's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ExtraDoc ships an update every 5 weeks, COTEXPERTISE daily. The most recent releases landed on September 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ExtraDoc | COTEXPERTISE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Size | 14 MB | 39 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [QSC](https://appshunter.io/developer/1291352938) | [Welyb](https://appshunter.io/developer/1369703085) |

## What reviewers say

### ExtraDoc

[App page](https://appshunter.io/ios/app/extradoc/id1481349309)

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

**In-app purchases:** none


### COTEXPERTISE

[App page](https://appshunter.io/ios/app/cotexpertise/id6745178023)

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

**In-app purchases:** none


## Frequently asked questions

### Is ExtraDoc free?

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

### Is COTEXPERTISE free?

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

### Do ExtraDoc or COTEXPERTISE have ads?

Neither ExtraDoc nor COTEXPERTISE shows ads.

### Which is updated more often, ExtraDoc or COTEXPERTISE?

ExtraDoc ships an update every 5 weeks, and COTEXPERTISE daily. Most recently, ExtraDoc was updated on September 28, 2026 and COTEXPERTISE on October 30, 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.*