# First Light vs Satellite Tracker 3D Sky Radar

The clearest difference is in-app purchases: First Light at none against Satellite Tracker 3D Sky Radar's 4. First Light also leads on ads (none vs shown). Satellite Tracker 3D Sky Radar's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Satellite Tracker 3D Sky Radar sells 4 in-app purchases, starting at $1.99 per 7 days. First Light asks for nothing beyond the download.

## The numbers

| Metric | First Light | Satellite Tracker 3D Sky Radar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/first-light-cosmic-viewer/id6780022564/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 75 MB | 16 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Sola](https://appshunter.io/developer/6780022566) | [DEEPLY AI](https://appshunter.io/developer/1809787876) |

## 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


### Satellite Tracker 3D Sky Radar

[App page](https://appshunter.io/ios/app/satellite-tracker-3d-sky-radar/id6782777113)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Satellite Tracker Premium Weekly | $1.99 | per 7 days |
| Satellite Tracker Premium Monthly | $5.99 | per month |
| Satellite Tracker Premium Yearly | $19.99 | per year |
| Satellite Tracker Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is First Light free?

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

### Is Satellite Tracker 3D Sky Radar free?

Satellite Tracker 3D Sky Radar is free to download, with in-app purchases available.

### Do First Light or Satellite Tracker 3D Sky Radar have ads?

Satellite Tracker 3D Sky Radar shows ads; First Light does not.

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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.*