# PP+ Image Formation vs ScaleWalk

The clearest difference is price: ScaleWalk at Free against PP+ Image Formation's $1.99. ScaleWalk also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On ads and in-app purchases there is nothing between them.

ScaleWalk is free to download; PP+ Image Formation costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PP+ Image Formation | ScaleWalk |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/scalewalk/id6793884701/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | — | Free |
| Size | 91 MB | 21 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Polyhedron Learning Media, Inc.](https://appshunter.io/developer/458882328) | [Dieu Hien Nguyen Thi](https://appshunter.io/developer/6774980481) |

## What reviewers say

### PP+ Image Formation

[App page](https://appshunter.io/ios/app/pp-plus-image-formation-lenses/id599292005)

**Features:** macOS Compatibility

**In-app purchases:** none


### ScaleWalk

[App page](https://appshunter.io/ios/app/scalewalk/id6793884701)

Explore the vast scale of the universe, from DNA to stars, with interactive logarithmic visuals. Compare objects, access knowledge cards, and follow guided learning paths. Save your discoveries and test your understanding.

**Highlights:** Interactive logarithmic universe exploration, Object comparison, Knowledge cards, Guided learning journeys, Save discoveries, Learning tests

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

**In-app purchases:** none


## Frequently asked questions

### Is PP+ Image Formation free?

PP+ Image Formation costs $1.99, with no in-app purchases.

### Is ScaleWalk free?

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

### Do PP+ Image Formation or ScaleWalk have ads?

Neither PP+ Image Formation nor ScaleWalk shows ads.

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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.*