# ExtraDoc vs Synerciel CEE

The clearest difference is update cadence: ExtraDoc at every 5 weeks against Synerciel CEE's every 7 months. 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, Synerciel CEE every 7 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | ExtraDoc | Synerciel CEE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Size | 14 MB | 37 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QSC](https://appshunter.io/developer/1291352938) | [SynerCiel SAS](https://appshunter.io/developer/537150354) |

## What reviewers say

### ExtraDoc

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

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

**In-app purchases:** none


### Synerciel CEE

[App page](https://appshunter.io/ios/app/synerciel-cee/id1660762893)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExtraDoc free?

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

### Is Synerciel CEE free?

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

### Do ExtraDoc or Synerciel CEE have ads?

Neither ExtraDoc nor Synerciel CEE shows ads.

### Which is updated more often, ExtraDoc or Synerciel CEE?

ExtraDoc ships an update every 5 weeks, and Synerciel CEE every 7 months. Most recently, ExtraDoc was updated on September 10, 2026 and Synerciel CEE on September 10, 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.*