# Deimos vs Stellar Horizon

The clearest difference is price: Deimos at Free against Stellar Horizon's $3.99. Deimos also leads on rating (5.0 vs 3.9). Stellar Horizon's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Deimos is free to download; Stellar Horizon costs $3.99 up front. Deimos sells 3 one-off in-app purchases. Stellar Horizon asks for nothing beyond the download.

Deimos holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Stellar Horizon has 57 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Deimos's written reviews are positive against 64% of Stellar Horizon's, so the app with the better star average is not the one people write more warmly about.

Deimos ships an update every 7 months, Stellar Horizon every 3 weeks. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Deimos | Stellar Horizon |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deimos/id611790047/reviews)** | [3.9 (57 ratings)](https://appshunter.io/ios/app/stellar-horizon/id1077483949/reviews) |
| Number of ratings | 1 | **57** |
| Positive reviews | 50.0% of reviews | **63.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 60 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Brandon Stecklein](https://appshunter.io/developer/498894252) | [S.MARSAULT](https://appshunter.io/developer/335570399) |

## What reviewers say

### Deimos

[App page](https://appshunter.io/ios/app/deimos/id611790047)

Embark on a sci-fi adventure as an elite Space Marine investigating a mysterious moon outpost. Make choices that shape your story, find weapons and armor, and battle dangerous enemies in this action-packed RPG.

**Highlights:** Story-driven investigation, Choice-based gameplay, Item and weapon collection, Combat against enemies, Role-playing adventure, Easy pick-up-and-play design

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Ape Coins | $0.99 | one-time |
| Advertising Removal | $1.99 | one-time |
| 500 Ape Coins | $4.99 | one-time |


### Stellar Horizon

[App page](https://appshunter.io/ios/app/stellar-horizon/id1077483949)

Embark on an interstellar journey in a vast, procedurally generated universe. Explore planets, discover alien life, build space stations, and engage in trade or combat. Your choices shape your path to skill, knowledge, wealth, and power.

**Highlights:** Explore procedurally generated universe, Discover planets and alien species, Build and manage space stations, Engage in trading and combat, Complete missions and analyze samples, Discover wormholes and ancient secrets

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Vast procedurally generated universe with billions of stars
- 🎮 Elite/No Man's Sky-like gameplay in mobile format
- 🌍 Ability to land on and explore planets
- 💰 One-time purchase with no ads or paywalls
- 🔄 Frequent updates and active developer support

**What reviewers complain about**

- 🐢 Extremely slow planetary movement and exploration
- 🎮 Clunky and unintuitive controls
- 📱 Tiny text that's hard to read on mobile devices
- 🗺️ Poor navigation and star map interface
- 🎯 Lack of clear objectives or end goals

**Reported bugs**

- Game crashes on launch for some devices (iPhone 5, iPad Mini)
- Launch button disappears during gameplay
- Cannot launch from flat surfaces
- Game hangs when not skipping animations
- Planetary exploration gets stuck and prevents takeoff

**Requested features**

- Free-flowing joystick movement on planets instead of grid-based
- Improved star map with zoom and selection capabilities
- Tutorial or guided onboarding system
- Larger, scalable text options
- Multiple planets per star system


## Frequently asked questions

### Is Deimos free?

Deimos is free to download, with in-app purchases available.

### Is Stellar Horizon free?

Stellar Horizon costs $3.99, with no in-app purchases.

### Which has better reviews, Deimos or Stellar Horizon?

Deimos is rated higher. Deimos averages 5.0 out of 5 from 1 ratings, while Stellar Horizon averages 3.9 from 57 ratings.

### Do Deimos or Stellar Horizon have ads?

Deimos shows ads; Stellar Horizon does not.

### Which is updated more often, Deimos or Stellar Horizon?

Deimos ships an update every 7 months, and Stellar Horizon every 3 weeks. Most recently, Deimos was updated on October 5, 2026 and Stellar Horizon on October 17, 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.*