# Skylob vs x

Skylob and x are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Skylob ships an update every 3 weeks, x fortnightly. The most recent releases landed on August 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Skylob | x |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skylob/id1538744084/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 11 MB | 1 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kyle Cheng](https://appshunter.io/developer/1518774140) | [FMILLET](https://appshunter.io/developer/550887984) |

## 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


### x

[App page](https://appshunter.io/ios/app/x-cal-plus/id6747112339)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Skylob free?

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

### Is x free?

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

### Do Skylob or x have ads?

Neither Skylob nor x shows ads.

### Which is updated more often, Skylob or x?

Skylob ships an update every 3 weeks, and x fortnightly. Most recently, Skylob was updated on August 25, 2026 and x on September 10, 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.*