# Radiant vs Arcadium

The clearest difference is price: Arcadium at Free against Radiant's $2.99. Arcadium also leads on review sentiment (95% vs 83%). Radiant's advantage is in-app purchases (none vs 10) and ads (none vs shown). On rating, ratings volume, update cadence and device support there is nothing between them.

Arcadium is free to download; Radiant costs $2.99 up front. Arcadium sells 10 one-off in-app purchases. Radiant asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Radiant against 4.9 for Arcadium. Both are backed by a comparable volume of ratings — 98 and 119 respectively. Written reviews are what separate them: 83% of Radiant's written reviews are positive against 95% of Arcadium's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Radiant | Arcadium |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.9 (98 ratings)](https://appshunter.io/ios/app/radiant/id335989815/reviews) | **[4.9 (119 ratings)](https://appshunter.io/ios/app/arcadium-space-shooter/id1555937672/reviews)** |
| Number of ratings | 98 | **119** |
| Positive reviews | 82.7% of reviews | **94.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 91 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Peroutka](https://appshunter.io/developer/317379085) | [Luciano Bercini](https://appshunter.io/developer/1553291661) |

## What reviewers say

### Radiant

[App page](https://appshunter.io/ios/app/radiant/id335989815)

Engage in an intense arcade-style space shooter, battling alien hordes across over 100 levels. Upgrade your ship with powerful weapons and power-ups to defeat giant bosses and save your homeworld.

**Highlights:** 100+ Levels, 10+ Boss-Fights, Upgradeable Weapons, Special Power-Ups, Difficulty Options, Online Leaderboards

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Smooth gameplay
- 👍 Retro-style graphics
- 💡 Interesting storyline
- 🎨 Vibrant colors
- 🎮 Intuitive controls

**What reviewers complain about**

- 🐛 Crashes and compatibility issues with newer iOS versions
- ⏱️ Slow firing rate and weapon upgrades
- 🔁 Repetitive asteroid levels
- 🎨 Graphics could use more modern updates
- 💤 Gameplay can feel slow at times

**Reported bugs**

- Crashes on iOS 8 and newer
- Compatibility issues with iPhone 6 and newer
- Weapon upgrades not working as expected

**Requested features**

- Add more levels and weapon upgrades
- Implement save/load functionality
- Include difficulty settings and an endless mode
- Add support for external controllers
- Optimize performance for newer devices


### Arcadium

[App page](https://appshunter.io/ios/app/arcadium-space-shooter/id1555937672)

Command a fighter ship to defend Earth from alien invaders in this fast-paced arcade shooter. Blast through waves of enemies, collect power-ups, and permanently upgrade your ship for an infinite fight for survival. Enjoy classic retro shmup action with modern twists and one-finger controls.

**Highlights:** Unique spaceships with special skills, Endless alien waves and boss battles, Permanent ship upgrades and mastery perks, Classic arcade shmup gameplay, One-finger controls, Offline play

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra HP | $2.99 | one-time |
| Artemis | $2.99 | one-time |
| Hermes | $2.99 | one-time |
| Ares | $3.99 | one-time |
| Ad-Free Revival | $3.99 | one-time |
| 10000 Gems | $3.99 | one-time |
| Aphrodite | $3.99 | one-time |
| Double gems | $4.99 | one-time |
| Pop-up Ad Removal | $4.99 | one-time |
| 30000 Gems | $8.99 | one-time |

**What reviewers like**

- 👍 Classic arcade experience
- 🤩 Fun and addictive gameplay
- 🚀 Nostalgic retro vibes
- 🎮 Straightforward and fair
- ✨ Many different ships with attributes

**What reviewers complain about**

- ⚠️ Can be unfair at times
- 📉 Lost progress on reinstall
- 🐛 Game crashes after a fixed time
- 🐛 Game stops suddenly
- ❓ Difficulty understanding how to play

**Reported bugs**

- Lost all progress after reinstall
- Game crashes after a fixed length of time
- Game suddenly stops
- Wave jump not working

**Requested features**

- Make it possible to play own music
- Continue updating and advertising the game
- More updates and more money spent
- More spaceships or an endless mode
- Nerf arcade nightmare


## Frequently asked questions

### Is Radiant free?

Radiant costs $2.99, with no in-app purchases.

### Is Arcadium free?

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

### Which has better reviews, Radiant or Arcadium?

Arcadium is rated higher. Radiant averages 4.9 out of 5 from 98 ratings, while Arcadium averages 4.9 from 119 ratings.

### Do Radiant or Arcadium have ads?

Arcadium shows ads; Radiant does not.

### Which is updated more often, Radiant or Arcadium?

Radiant ships an update every 3 months, and Arcadium every 3 months. Most recently, Radiant was updated on November 6, 2026 and Arcadium on November 3, 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.*