# HDRI Prep vs Screen Forge

The clearest difference is price: Screen Forge at Free against HDRI Prep's $9.99. Screen Forge also leads on update cadence (monthly vs every 6 months). HDRI Prep's advantage is in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.0). On ads and device support there is nothing between them.

Screen Forge is free to download; HDRI Prep costs $9.99 up front. Screen Forge sells 2 in-app purchases, starting at $4.99 per month. HDRI Prep asks for nothing beyond the download.

HDRI Prep ships an update every 6 months, Screen Forge monthly. The most recent releases landed on September 10, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | HDRI Prep | Screen Forge |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Size | 1 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Squirrel FX LLC](https://appshunter.io/developer/1557764202) | [JOSE F DA SILVA NT](https://appshunter.io/developer/524992898) |

## What reviewers say

### HDRI Prep

[App page](https://appshunter.io/ios/app/hdri-prep/id1616103466)

**Features:** Vision Pro support

**In-app purchases:** none


### Screen Forge

[App page](https://appshunter.io/ios/app/screen-forge/id6480420930)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is HDRI Prep free?

HDRI Prep costs $9.99, with no in-app purchases.

### Is Screen Forge free?

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

### Do HDRI Prep or Screen Forge have ads?

Neither HDRI Prep nor Screen Forge shows ads.

### Which is updated more often, HDRI Prep or Screen Forge?

HDRI Prep ships an update every 6 months, and Screen Forge monthly. Most recently, HDRI Prep was updated on September 10, 2026 and Screen Forge on May 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.*