# Skylob vs First Light

The clearest difference is ratings volume: First Light at 3 against Skylob's 1. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Skylob against 5.0 for First Light. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Skylob | First Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/skylob/id1538744084/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/first-light-cosmic-viewer/id6780022564/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 11 MB | 75 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kyle Cheng](https://appshunter.io/developer/1518774140) | [Thomas Sola](https://appshunter.io/developer/6780022566) |

## What reviewers say

### Skylob

[App page](https://appshunter.io/ios/app/skylob/id1538744084)

Explore the vastness of the observable universe, from its immense size to the accelerating expansion driven by dark energy. Discover how our cosmological horizon is shrinking, making parts of the cosmos permanently unknowable. This app invites contemplation on our place within this cosmic immensity.

**Highlights:** Observable universe scale, Dark energy and expansion, Cosmological horizon explained, Our place in the cosmos, Scientific concepts simplified

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Skylob free?

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

### Is First Light free?

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

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

Skylob and First Light are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Skylob or First Light have ads?

Neither Skylob nor First Light shows ads.

### Which is updated more often, Skylob or First Light?

Skylob ships an update every 3 weeks, and First Light every 3 weeks. Most recently, Skylob was updated on October 24, 2026 and First Light on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*