# AI TD vs Vector

The clearest difference is in-app purchases: Vector at none against AI TD's 7. Vector also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). AI TD's advantage is iOS requirement (15.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. AI TD sells 7 one-off in-app purchases. Vector asks for nothing beyond the download.

AI TD ships an update fortnightly, Vector every 2 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | AI TD | Vector |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 215 MB | 7 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Hot Yeti Studio OU](https://appshunter.io/developer/1643923250) | [ERIC JAY MORRISON](https://appshunter.io/developer/1888040604) |

## What reviewers say

### AI TD

[App page](https://appshunter.io/ios/app/ai-td/id6740579258)

Defend humanity from an AI takeover by eliminating enemy forces. Upgrade your defenses and unlock new powers as you progress through increasingly challenging levels.

**Highlights:** Eliminate AI enemies, Upgrade defenses, Gain new powers, Humanity's savior theme, Challenging gameplay

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super Revive Pack 1 | $1.99 | one-time |
| Mini Pack | $2.99 | one-time |
| No Ads | $6.99 | one-time |
| Tower Boost Pack 1 | $6.99 | one-time |
| Large Pack | $7.99 | one-time |
| No Ads Bundle | $9.99 | one-time |
| Full Pack | $17.99 | one-time |


### Vector

[App page](https://appshunter.io/ios/app/vector-arcade-survival/id6813308115)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI TD free?

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

### Is Vector free?

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

### Do AI TD or Vector have ads?

AI TD shows ads; Vector does not.

### Which is updated more often, AI TD or Vector?

AI TD ships an update fortnightly, and Vector every 2 days. Most recently, AI TD was updated on October 7, 2026 and Vector on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*