# USM lock C vs Profile Image AI

The clearest difference is ads: USM lock C at none against Profile Image AI's shown. USM lock C also leads on iOS requirement (15.6 vs 18.0). Profile Image AI's advantage is update cadence (every 5 days vs every 3 months). On price, 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.

USM lock C ships an update every 3 months, Profile Image AI every 5 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | USM lock C | Profile Image AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 47 MB | 32 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [USM U. Schaerer Soehne AG](https://appshunter.io/developer/395765701) | [Julien meyer](https://appshunter.io/developer/285361686) |

## What reviewers say

### USM lock C

[App page](https://appshunter.io/ios/app/usm-lock-c/id6467190717)

**Features:** macOS Compatibility

**In-app purchases:** none


### Profile Image AI

[App page](https://appshunter.io/ios/app/profile-image-ai/id6737848440)

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

**In-app purchases:** none


## Frequently asked questions

### Is USM lock C free?

USM lock C is free to download, with no in-app purchases.

### Is Profile Image AI free?

Profile Image AI is free to download, with no in-app purchases.

### Do USM lock C or Profile Image AI have ads?

Profile Image AI shows ads; USM lock C does not.

### Which is updated more often, USM lock C or Profile Image AI?

USM lock C ships an update every 3 months, and Profile Image AI every 5 days. Most recently, USM lock C was updated on October 7, 2026 and Profile Image AI on October 24, 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.*