# First Light vs ScaleWalk

The clearest difference is rating: First Light at 5.0 against ScaleWalk's 3.0. First Light also leads on ratings volume (3 vs 1). ScaleWalk's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

First Light holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | First Light | ScaleWalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/first-light-cosmic-viewer/id6780022564/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/scalewalk/id6793884701/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | Free |
| Size | 75 MB | 21 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Sola](https://appshunter.io/developer/6780022566) | [Dieu Hien Nguyen Thi](https://appshunter.io/developer/6774980481) |

## What reviewers say

### First Light

[App page](https://appshunter.io/ios/app/first-light-cosmic-viewer/id6780022564)

Explore the universe's earliest light with real cosmic microwave background data. Pan across the oldest light in the universe, switch between satellites, and observe shifts in frequency bands. This educational app brings real science and cosmic history to your mobile device.

**Highlights:** Explore cosmic microwave background data, Immersive sky exploration via phone movement, Switch between COBE, WMAP, and Planck satellites, Adjust frequency bands to see universe shifts, Utilizes real scientific data

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

**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 First Light free?

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

### Is ScaleWalk free?

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

### Which has better reviews, First Light or ScaleWalk?

First Light is rated higher. First Light averages 5.0 out of 5 from 3 ratings, while ScaleWalk averages 3.0 from 1 ratings.

### Do First Light or ScaleWalk have ads?

Neither First Light 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.*