# HD DIFFUSION vs Jewelly

The clearest difference is iOS requirement: HD DIFFUSION at 11.0 against Jewelly's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HD DIFFUSION ships an update every 27 months, Jewelly every 24 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | HD DIFFUSION | Jewelly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 24 months** |
| Size | 65 MB | 104 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HD DIFFUSION](https://appshunter.io/developer/1569843650) | [UNICORN](https://appshunter.io/developer/1619505477) |

## What reviewers say

### HD DIFFUSION

[App page](https://appshunter.io/ios/app/hd-diffusion/id1569843648)

**Features:** macOS Compatibility

**In-app purchases:** none


### Jewelly

[App page](https://appshunter.io/ios/app/jewelly/id1619505475)

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

**In-app purchases:** none


## Frequently asked questions

### Is HD DIFFUSION free?

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

### Is Jewelly free?

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

### Do HD DIFFUSION or Jewelly have ads?

Neither HD DIFFUSION nor Jewelly shows ads.

### Which is updated more often, HD DIFFUSION or Jewelly?

HD DIFFUSION ships an update every 27 months, and Jewelly every 24 months. Most recently, HD DIFFUSION was updated on November 7, 2026 and Jewelly on November 12, 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.*