# STM Cloud vs Dun

The clearest difference is in-app purchases: STM Cloud at none against Dun's 7. STM Cloud also leads on iOS requirement (15.0 vs 26.0). Dun's advantage is update cadence (daily vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Dun sells 7 in-app purchases, starting at $2.49 per 7 days. STM Cloud asks for nothing beyond the download.

STM Cloud ships an update every 4 months, Dun daily. The most recent releases landed on October 29, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | STM Cloud | Dun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (92 ratings)](https://appshunter.io/ios/app/dun-ai-voice-keyboard/id6792556839/reviews)** |
| Number of ratings | — | **92** |
| Positive reviews | — | 41.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 290 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [STM PRODUCTS SRL](https://appshunter.io/developer/1478905748) | [Manuel Fessen](https://appshunter.io/developer/1788065349) |

## What reviewers say

### STM Cloud

[App page](https://appshunter.io/ios/app/stm-cloud/id1478905749)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dun

[App page](https://appshunter.io/ios/app/dun-ai-voice-keyboard/id6792556839)

This AI-powered keyboard transforms spoken words into polished text across various messaging and productivity apps. It offers on-device transcription for enhanced privacy and features customizable writing styles and real-time translation.

**Highlights:** On-device speech recognition, Customizable writing styles, Real-time translation, Full keyboard layout with dictation, Pause dictation mid-thought, Dynamic Island Live Activity

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $2.49 | per 7 days |
| Pro Monthly | $4.99 | per month |
| Dun Pro Weekly | $4.99 | per 7 days |
| Dun Pro Monthly | $9.99 | per month |
| Pro Yearly | $29.99 | per year |
| Dun Pro Yearly | $59.99 | per year |
| Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is STM Cloud free?

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

### Is Dun free?

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

### Do STM Cloud or Dun have ads?

Neither STM Cloud nor Dun shows ads.

### Which is updated more often, STM Cloud or Dun?

STM Cloud ships an update every 4 months, and Dun daily. Most recently, STM Cloud was updated on October 29, 2026 and Dun on November 8, 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.*