# Tower Defense vs Retro TD

The clearest difference is iOS requirement: Retro TD at 17.0 against Tower Defense's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Tower Defense sells 4 one-off in-app purchases and Retro TD sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Tower Defense | Retro TD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tower-defense-void/id6762655620/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 11 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 9+ |
| Developer | [Jonathan Taveras](https://appshunter.io/developer/1270478820) | [Doug Barrett](https://appshunter.io/developer/1527536178) |

## What reviewers say

### Tower Defense

[App page](https://appshunter.io/ios/app/tower-defense-void/id6762655620)

Master a skill-driven tower defense game with infinite waves and deterministic combat. Strategize with four tower classes, six maps, and global leaderboards. Progress through permanent upgrades and daily challenges to enhance your tower defense mastery.

**Highlights:** Skill-driven tower defense gameplay, Infinite enemy waves with bosses, Four distinct tower classes, Six challenging maps with difficulty tiers, Permanent upgrades and progression system, Daily challenges and global leaderboards, Lock Screen and Dynamic Island integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $2.99 | one-time |
| Standard Pack | $9.99 | one-time |
| Pro Pack | $24.99 | one-time |
| Elite Pack | $69.99 | one-time |


### Retro TD

[App page](https://appshunter.io/ios/app/retro-td/id6770826389)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4 AI Level Credits | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |


## Frequently asked questions

### Is Tower Defense free?

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

### Is Retro TD free?

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

### Do Tower Defense or Retro TD have ads?

Neither Tower Defense nor Retro TD shows ads.

### Which is updated more often, Tower Defense or Retro TD?

Tower Defense ships an update every 3 days, and Retro TD every 3 days. Most recently, Tower Defense was updated on October 28, 2026 and Retro TD on October 7, 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.*