# Radiant Defense vs Module TD Tower Defense Sci

The clearest difference is review sentiment: Radiant Defense at 64% against Module TD Tower Defense Sci's 43%. Radiant Defense also leads on iOS requirement (12.0 vs 15.6). Module TD Tower Defense Sci's advantage is rating (4.5 vs 4.2) and ratings volume (1.3K vs 144). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Radiant Defense sells 4 one-off in-app purchases and Module TD Tower Defense Sci sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Module TD Tower Defense Sci holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Module TD Tower Defense Sci has 1.3K ratings behind it against 144, so its average is the more settled of the two. Written reviews complicate that: 64% of Radiant Defense's written reviews are positive against 43% of Module TD Tower Defense Sci's, so the app with the better star average is not the one people write more warmly about.

Radiant Defense ships an update every 6 weeks, Module TD Tower Defense Sci monthly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Radiant Defense | Module TD Tower Defense Sci |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (144 ratings)](https://appshunter.io/ios/app/radiant-defense/id512203663/reviews) | **[4.5 (1.3K ratings)](https://appshunter.io/ios/app/module-td-tower-defense-sci-fi/id1373636489/reviews)** |
| Number of ratings | 144 | **1.3K** |
| Positive reviews | **64.3% of reviews** | 43.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 18 MB | 413 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [David Peroutka](https://appshunter.io/developer/317379085) | [Mikhail Vladimirovich](https://appshunter.io/developer/660171136) |

## What reviewers say

### Radiant Defense

[App page](https://appshunter.io/ios/app/radiant-defense/id512203663)

Defend your space fortress against alien invasions in this vibrant defense game. Strategically build your base, deploy a variety of weapons and traps, and customize enemy paths to survive hundreds of waves. Compete for high scores in an online hall of fame.

**Highlights:** Build custom enemy paths, Over 300 alien waves, 9 upgradable weapons, 3 superweapons, Online hall of fame, Signature soundtrack

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Burning Pack | $1.99 | one-time |
| Science Pack | $1.99 | one-time |
| Explosive Pack | $1.99 | one-time |
| Xenobiology Pack | $1.99 | one-time |

**What reviewers like**

- 💎 One of My Favorite Games Ever
- 🏆 GOAT TD
- 🎨 Vibrant design and friendly to battery life
- 🕹️ Nostalgic and simple fun with a good amount of challenge
- 🎮 Classic Tower Defense game

**What reviewers complain about**

- 🔓 Pay to complete
- 🔓 Can't be completed without buying extras
- 🔓 Pay to win
- 🔓 Missing In-App Purchases
- 🔓 Pay to win borderline pay to play

**Reported bugs**

- Score not updating
- Frequent crashes and performance issues
- Buttons not responsive

**Requested features**

- Option to delete all progress and start from the beginning
- More levels and new content
- Endless survival mode
- Controller support on iOS
- Ability to set preferred targets for towers


### Module TD Tower Defense Sci

[App page](https://appshunter.io/ios/app/module-td-tower-defense-sci-fi/id1373636489)

Defend your space base from waves of incoming enemies by strategically placing and customizing unique towers. This offline strategy game offers deep customization with modular elements and elemental bonuses to overcome challenging levels.

**Highlights:** Offline Tower Defense, Highly Customizable Towers, Modular Elements, Elemental Bonuses, 80+ Levels, Strategic Gameplay, Achievements

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Matrix Small Pack | $0.99 | one-time |
| Metamaterials+Matrix Small | $0.99 | one-time |
| Matrix Moderate Pack | $1.99 | one-time |
| Average  Pack | $2.99 | one-time |
| Matrix Average Pack | $4.99 | one-time |
| Metamaterials Average Pack | $4.99 | one-time |
| Matrix Good-Sized Pack | $8.99 | one-time |
| Metamaterials+Matrix Medium | $8.99 | one-time |
| Matrix Large Pack | $17.99 | one-time |
| Metamaterials Large Pack | $17.99 | one-time |
| Metamaterials Huge Pack | $43.99 | one-time |
| Metamaterials and Matrix | $49.99 | one-time |

**What reviewers like**

- 🚀 Challenging and fun
- 🔒 No aggressive in-app purchases
- 🔒 No forced ads
- 👍 Customizable towers and strategy
- 👍 Lots of levels and replay value

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🐛 Levels not properly optimized for newer devices
- 🐛 Crashes and freezes on certain levels
- 🐛 Progression and purchases not syncing across devices
- 🐛 Difficulty spike and pay-to-win mechanics

**Reported bugs**

- Levels not loading properly
- Towers disappearing or not functioning
- Game progress being reset or lost
- Incompatibility issues with newer devices
- Crashes and freezes on certain levels

**Requested features**

- More levels and updates
- Better tutorial and in-game explanations
- Difficulty options and customization
- Sync progress and purchases across devices
- Improved performance and optimization


## Frequently asked questions

### Is Radiant Defense free?

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

### Is Module TD Tower Defense Sci free?

Module TD Tower Defense Sci is free to download, with in-app purchases available.

### Which has better reviews, Radiant Defense or Module TD Tower Defense Sci?

Module TD Tower Defense Sci is rated higher. Radiant Defense averages 4.2 out of 5 from 144 ratings, while Module TD Tower Defense Sci averages 4.5 from 1.3K ratings.

### Do Radiant Defense or Module TD Tower Defense Sci have ads?

Neither Radiant Defense nor Module TD Tower Defense Sci shows ads.

### Which is updated more often, Radiant Defense or Module TD Tower Defense Sci?

Radiant Defense ships an update every 6 weeks, and Module TD Tower Defense Sci monthly. Most recently, Radiant Defense was updated on September 21, 2026 and Module TD Tower Defense Sci on September 19, 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.*