# AI TD vs Wyrmlight

The clearest difference is device support: AI TD at 3 against Wyrmlight's 1. AI TD also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AI TD sells 7 one-off in-app purchases and Wyrmlight sells 7 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AI TD ships an update fortnightly, Wyrmlight every 10 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AI TD | Wyrmlight |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 215 MB | 58 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 12+ |
| Developer | [Hot Yeti Studio OU](https://appshunter.io/developer/1643923250) | [Cristian Critelli](https://appshunter.io/developer/1887663603) |

## 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 |


### Wyrmlight

[App page](https://appshunter.io/ios/app/wyrmlight-space-defender/id6775217423)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wyrmlight VIP (Weekly) | $1.99 | per 7 days |
| Wyrmlight VIP | $3.99 | per month |
| Handful of Crystals | $0.99 | one-time |
| Pouch of Crystals | $4.99 | one-time |
| Dragonlord Pack | $4.99 | one-time |
| Chest of Crystals | $9.99 | one-time |
| Vault of Crystals | $19.99 | one-time |


## Frequently asked questions

### Is AI TD free?

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

### Is Wyrmlight free?

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

### Do AI TD or Wyrmlight have ads?

Both AI TD and Wyrmlight show ads.

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

AI TD ships an update fortnightly, and Wyrmlight every 10 days. Most recently, AI TD was updated on October 30, 2026 and Wyrmlight 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.*