# CAD App vs E

The clearest difference is update cadence: E at weekly against CAD App's every 4 weeks. CAD App's advantage is iOS requirement (13.0 vs 15.6). 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.

CAD App ships an update every 4 weeks, E weekly. The most recent releases landed on September 10, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CAD App | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 54 MB | 65 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Centre Aquitain du Dos](https://appshunter.io/developer/1573398986) | [A. F. GENESE](https://appshunter.io/developer/1819879677) |

## What reviewers say

### CAD App

[App page](https://appshunter.io/ios/app/cad-app/id1573398984)

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-tonus/id6747120610)

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

**In-app purchases:** none


## Frequently asked questions

### Is CAD App free?

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

### Is E free?

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

### Do CAD App or E have ads?

Neither CAD App nor E shows ads.

### Which is updated more often, CAD App or E?

CAD App ships an update every 4 weeks, and E weekly. Most recently, CAD App was updated on September 10, 2026 and E on September 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.*