# STM Patch Editor vs STerminal 3

The clearest difference is price: STerminal 3 at Free against STM Patch Editor's $19.99. STerminal 3 also leads on update cadence (every 2 months vs every 5 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

STerminal 3 is free to download; STM Patch Editor costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

STM Patch Editor ships an update every 5 months, STerminal 3 every 2 months. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | STM Patch Editor | STerminal 3 |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 53 MB | 29 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Josef Stoppacher](https://appshunter.io/developer/1416730372) | [Sierzega Elektronik GmbH](https://appshunter.io/developer/1795210903) |

## What reviewers say

### STM Patch Editor

[App page](https://appshunter.io/ios/app/stm-patch-editor/id1416730373)

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

**In-app purchases:** none


### STerminal 3

[App page](https://appshunter.io/ios/app/sterminal-3/id6741711260)

**In-app purchases:** none


## Frequently asked questions

### Is STM Patch Editor free?

STM Patch Editor costs $19.99, with no in-app purchases.

### Is STerminal 3 free?

STerminal 3 is free to download, with no in-app purchases.

### Do STM Patch Editor or STerminal 3 have ads?

Neither STM Patch Editor nor STerminal 3 shows ads.

### Which is updated more often, STM Patch Editor or STerminal 3?

STM Patch Editor ships an update every 5 months, and STerminal 3 every 2 months. Most recently, STM Patch Editor was updated on September 16, 2026 and STerminal 3 on September 14, 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.*