# InvaZium vs Space TD

The clearest difference is ads: InvaZium at none against Space TD's shown. InvaZium also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

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

InvaZium ships an update every 6 days, Space TD every 3 weeks. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | InvaZium | Space TD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Size | 54 MB | 210 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Daniel Canete Campos](https://appshunter.io/developer/1273575992) | [Hot Yeti Studio OU](https://appshunter.io/developer/1643923250) |

## What reviewers say

### InvaZium

[App page](https://appshunter.io/ios/app/invazium/id6480328706)

**Features:** macOS Compatibility

**In-app purchases:** none


### Space TD

[App page](https://appshunter.io/ios/app/space-td/id6760296272)

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

**In-app purchases:** none


## Frequently asked questions

### Is InvaZium free?

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

### Is Space TD free?

Space TD is free to download, with no in-app purchases.

### Do InvaZium or Space TD have ads?

Space TD shows ads; InvaZium does not.

### Which is updated more often, InvaZium or Space TD?

InvaZium ships an update every 6 days, and Space TD every 3 weeks. Most recently, InvaZium was updated on October 7, 2026 and Space TD on October 2, 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.*