# AI Defense vs Void_TD

The clearest difference is in-app purchases: Void_TD at none against AI Defense's 10. Void_TD also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. AI Defense sells 6 in-app purchases, starting at $9.99 per 7 days. Void_TD asks for nothing beyond the download.

AI Defense ships an update every 2 weeks, Void_TD fortnightly. The most recent releases landed on September 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | AI Defense | Void_TD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (14 ratings)](https://appshunter.io/ios/app/void-td/id6762560273/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 314 MB | 93 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [iDeaction](https://appshunter.io/developer/1286980208) | [Ryan O'Donnell](https://appshunter.io/developer/1894676963) |

## What reviewers say

### AI Defense

[App page](https://appshunter.io/ios/app/ai-defense/id1529248770)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Ads Ticket | $9.99 | per 7 days |
| Clearance reward pack | $9.99 | one-time |
| Battle Pass | $9.99 | one-time |
| Clearance reward pack | $19.99 | one-time |
| Clearance reward pack | $49.99 | one-time |
| Clearance reward pack | $99.99 | one-time |


### Void_TD

[App page](https://appshunter.io/ios/app/void-td/id6762560273)

Defend your base against waves of enemies in this sci-fi tower defense game. Strategically place and upgrade towers, customize your loadout, and face increasingly difficult challenges. Unlock new modes and cosmetic options as you progress.

**Highlights:** 6 unique tower types with 3 upgrade levels, 6 enemy types including boss variants, 20 campaign waves and procedural endless mode, Customizable tower loadouts and cosmetic skins, 3 difficulty levels, High score tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Defense free?

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

### Is Void_TD free?

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

### Do AI Defense or Void_TD have ads?

AI Defense shows ads; Void_TD does not.

### Which is updated more often, AI Defense or Void_TD?

AI Defense ships an update every 2 weeks, and Void_TD fortnightly. Most recently, AI Defense was updated on September 10, 2026 and Void_TD on October 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.*