# Radiation Island vs Bright Memory

The clearest difference is in-app purchases: Radiation Island at none against Bright Memory's 9. Radiation Island also leads on ratings volume (649 vs 48). Bright Memory's advantage is update cadence (every 3 days vs every 3 weeks). On price, rating, review sentiment and ads there is nothing between them.

Radiation Island costs $4.99 and Bright Memory $4.99 up front. Bright Memory sells 9 one-off in-app purchases. Radiation Island asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for Radiation Island against 4.4 for Bright Memory. That said, the two scores are not equally well evidenced: Radiation Island has 649 ratings behind it against 48, so its average is the more settled of the two. Written reviews are what separate them: 74% of Radiation Island's written reviews are positive against 67% of Bright Memory's.

Radiation Island ships an update every 3 weeks, Bright Memory every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Radiation Island | Bright Memory |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | [4.3 (649 ratings)](https://appshunter.io/ios/app/radiation-island/id923760656/reviews) | **[4.4 (48 ratings)](https://appshunter.io/ios/app/bright-memory-infinite/id1669877091/reviews)** |
| Number of ratings | **649** | 48 |
| Positive reviews | **73.9% of reviews** | 67.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2.3 GB | 2.4 GB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Atypical Games](https://appshunter.io/developer/574375383) | [贤成 曾](https://appshunter.io/developer/1474315940) |

## What reviewers say

### Radiation Island

[App page](https://appshunter.io/ios/app/radiation-island/id923760656)

Embark on a survival adventure in a vast open world, stranded in an alternate reality. Explore, craft, and fight to uncover secrets and find your way back home. Survive harsh environments, dangerous creatures, and the undead.

**Highlights:** Open-world exploration, Crafting and resource gathering, Combat against wildlife and zombies, Day-night cycle and weather effects, Underwater exploration, Multiplayer arena mode

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 PLEASE KEEP UPDATING
- 👍 Enjoyable for years
- 👍 Immersive environment
- 👍 Tense atmosphere
- 👍 Open world with variety

**What reviewers complain about**

- 🐛 Crashes and resets progress
- 🐛 Glitches with building
- 🐛 Laggy performance in certain areas
- 🔋 Battery draining
- 🐛 Disappearing items and chests

**Reported bugs**

- Crashes causing loss of progress
- Glitches with building and structures
- Disappearing items and chests
- Laggy performance in certain areas
- Compatibility issues with newer iOS versions

**Requested features**

- Creative mode with unlimited resources
- Multiplayer co-op
- More vehicles (cars, boats, etc.)
- Expanded crafting and building options
- More enemy variety and difficulty


### Bright Memory

[App page](https://appshunter.io/ios/app/bright-memory-infinite/id1669877091)

Experience a thrilling blend of FPS and action in a futuristic world. Investigate a mysterious global phenomenon by combining unique skills, sword combat, and customizable firearms. Explore an ancient history connecting two worlds.

**Highlights:** FPS and action genre blend, Skill and ability combos, Sword combat, Customizable firearms, Gyroscope aiming support, Controller support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Black Kitten Pack | $0.99 | one-time |
| 学院兔皮肤 | $0.99 | one-time |
| Cyber Rabbit | $0.99 | one-time |
| Energetic Pack | $0.99 | one-time |
| Youthful Days Pack | $0.99 | one-time |
| Cheongsam (New Year) Pack | $0.99 | one-time |
| Cheongsam (Blue Flowers) | $0.99 | one-time |
| Bikini Pack | $0.99 | one-time |
| Skinny Jeans Pack | $0.99 | one-time |

**What reviewers like**

- 👍 Great graphics
- 💡 Excellent with a controller
- 🚀 Fun mechanics

**What reviewers complain about**

- 🐛 Bugs and issues with controls
- 🔧 Needs improvements for iPad devices
- 💰 Expensive in-app purchases

**Reported bugs**

- Buttons not programmed properly for iOS
- Unable to complete identity verification
- Touch controls issues on iPad

**Requested features**

- Add controller vibration support
- Allow customization of touch controls
- Optimize controls for PlayStation controller


## Frequently asked questions

### Is Radiation Island free?

Radiation Island costs $4.99, with no in-app purchases.

### Is Bright Memory free?

Bright Memory costs $4.99, and also offers in-app purchases.

### Which has better reviews, Radiation Island or Bright Memory?

Bright Memory is rated higher. Radiation Island averages 4.3 out of 5 from 649 ratings, while Bright Memory averages 4.4 from 48 ratings.

### Do Radiation Island or Bright Memory have ads?

Neither Radiation Island nor Bright Memory shows ads.

### Which is updated more often, Radiation Island or Bright Memory?

Radiation Island ships an update every 3 weeks, and Bright Memory every 3 days. Most recently, Radiation Island was updated on October 24, 2026 and Bright Memory on October 25, 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.*