# signoSign vs Dantherm Control

The clearest difference is in-app purchases: Dantherm Control at none against signoSign's 3. Dantherm Control also leads on iOS requirement (15.1 vs 18.6). signoSign's advantage is update cadence (every 2 months vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. signoSign sells 3 in-app purchases, starting at $10.00 per month. Dantherm Control asks for nothing beyond the download.

signoSign ships an update every 2 months, Dantherm Control every 8 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | signoSign | Dantherm Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 24 MB | 35 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [signotec GmbH](https://appshunter.io/developer/524332913) | [Trotec GmbH & Co. KG](https://appshunter.io/developer/1301388797) |

## What reviewers say

### signoSign

[App page](https://appshunter.io/ios/app/signosign-sign-pdf-documents/id1535015741)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| signoSign - 1 Month | $10.00 | per month |
| signoSign - 6 Months | $45.00 | per 6 months |
| signoSign - 1 Year | $79.00 | per year |


### Dantherm Control

[App page](https://appshunter.io/ios/app/dantherm-control/id6689518019)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is signoSign free?

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

### Is Dantherm Control free?

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

### Do signoSign or Dantherm Control have ads?

Neither signoSign nor Dantherm Control shows ads.

### Which is updated more often, signoSign or Dantherm Control?

signoSign ships an update every 2 months, and Dantherm Control every 8 months. Most recently, signoSign was updated on October 29, 2026 and Dantherm Control on October 27, 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.*