# UmKey vs Posti AI

The clearest difference is in-app purchases: UmKey at none against Posti AI's 4. UmKey also leads on ads (none vs shown). Posti AI's advantage is iOS requirement (16.4 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. Posti AI sells 4 in-app purchases, starting at $4.99 per 7 days. UmKey asks for nothing beyond the download.

UmKey ships an update every 5 days, Posti AI weekly. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | UmKey | Posti AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 127 MB | 162 MB |
| Requires iOS | 18.2 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 12+ |
| Developer | [UmKey](https://appshunter.io/developer/1759903991) | [Nazar Verhun](https://appshunter.io/developer/1785723255) |

## What reviewers say

### UmKey

[App page](https://appshunter.io/ios/app/umkey/id6587555505)

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

**In-app purchases:** none


### Posti AI

[App page](https://appshunter.io/ios/app/posti-ai-draft-carousel-post/id6754608364)

Transform voice or text into scroll-stopping carousels, viral reels scripts, and engaging posts in under 60 seconds. Offers 40+ professional templates and supports 43 languages for content creation across multiple platforms.

**Highlights:** Voice to content generation, Multiple content formats, 40+ professional templates, Supports 43 languages, Offline voice input, On-device speech recognition

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Weekly Pro Trial | $4.99 | per 7 days |
| Monthly Plan | $14.99 | per month |
| PostiAI + | $99.99 | per year |


## Frequently asked questions

### Is UmKey free?

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

### Is Posti AI free?

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

### Do UmKey or Posti AI have ads?

Posti AI shows ads; UmKey does not.

### Which is updated more often, UmKey or Posti AI?

UmKey ships an update every 5 days, and Posti AI weekly. Most recently, UmKey was updated on September 17, 2026 and Posti AI on September 15, 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.*