# ETHERMA eTOUCH vs CB_ARC

The clearest difference is update cadence: CB_ARC at fortnightly against ETHERMA eTOUCH's every 16 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.

ETHERMA eTOUCH ships an update every 16 months, CB_ARC fortnightly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ETHERMA eTOUCH | CB_ARC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Fortnightly** |
| Size | 41 MB | 1 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Etherma](https://appshunter.io/developer/1606968285) | [Comsys Bärtsch AG](https://appshunter.io/developer/689626069) |

## What reviewers say

### ETHERMA eTOUCH

[App page](https://appshunter.io/ios/app/etherma-etouch/id1606968283)

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

**In-app purchases:** none


### CB_ARC

[App page](https://appshunter.io/ios/app/cb-arc/id6472819781)

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

**In-app purchases:** none


## Frequently asked questions

### Is ETHERMA eTOUCH free?

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

### Is CB_ARC free?

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

### Do ETHERMA eTOUCH or CB_ARC have ads?

Neither ETHERMA eTOUCH nor CB_ARC shows ads.

### Which is updated more often, ETHERMA eTOUCH or CB_ARC?

ETHERMA eTOUCH ships an update every 16 months, and CB_ARC fortnightly. Most recently, ETHERMA eTOUCH was updated on November 3, 2026 and CB_ARC on November 4, 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.*