# Vertical Speed vs Kessler Sky

The clearest difference is iOS requirement: Vertical Speed at 13.0 against Kessler Sky's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Vertical Speed ships an update every 2 weeks, Kessler Sky monthly. The most recent releases landed on October 5, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Vertical Speed | Kessler Sky |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kessler-sky/id6809026749/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 220 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cortex (Apps)](https://appshunter.io/developer/1685753630) | [THE RISE COLLECTION](https://appshunter.io/developer/1000072797) |

## What reviewers say

### Vertical Speed

[App page](https://appshunter.io/ios/app/vertical-speed/id6747388225)

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

**In-app purchases:** none


### Kessler Sky

[App page](https://appshunter.io/ios/app/kessler-sky/id6809026749)

Manage Earth's launch pad by strategically launching satellites. Dock them to build larger structures and earn income, but avoid collisions that create debris and lead to system failure. Compete with friends and complete daily contracts to keep the sky open.

**Highlights:** One-thumb satellite launching, Satellite docking for larger structures, Debris collision system, Daily contracts and leaderboards, Offline play, Optional ad rewards

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

**In-app purchases:** none


## Frequently asked questions

### Is Vertical Speed free?

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

### Is Kessler Sky free?

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

### Do Vertical Speed or Kessler Sky have ads?

Both Vertical Speed and Kessler Sky show ads.

### Which is updated more often, Vertical Speed or Kessler Sky?

Vertical Speed ships an update every 2 weeks, and Kessler Sky monthly. Most recently, Vertical Speed was updated on October 5, 2026 and Kessler Sky on October 23, 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.*