# DefCom TD vs Alien Defense

The clearest difference is price: Alien Defense at Free against DefCom TD's $1.99. Alien Defense also leads on update cadence (every 2 weeks vs every 41 months). DefCom TD's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Alien Defense is free to download; DefCom TD costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DefCom TD ships an update every 41 months, Alien Defense every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | DefCom TD | Alien Defense |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/defcom-td/id1017519213/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 41 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 61 MB | 284 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Game Dev Team](https://appshunter.io/developer/561134317) | [PLAYGENIX EDTECH INC.](https://appshunter.io/developer/6784856448) |

## What reviewers say

### DefCom TD

[App page](https://appshunter.io/ios/app/defcom-td/id1017519213)

A 3D tower defense and real-time strategy survival game. Build your base, gather resources, and defend against endless enemy waves on a randomly generated map. Enjoy intuitive controls and pleasant graphics without ads or in-app purchases.

**Highlights:** Mix of TD and RTS gameplay, Varied enemy types (infantry to aviation), Randomly generated maps, 3D graphics and sound, Simple, intuitive controls, No ads or in-app purchases

**In-app purchases:** none


### Alien Defense

[App page](https://appshunter.io/ios/app/alien-defense-space-tower-rts/id6776451528)

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

**In-app purchases:** none


## Frequently asked questions

### Is DefCom TD free?

DefCom TD costs $1.99, with no in-app purchases.

### Is Alien Defense free?

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

### Do DefCom TD or Alien Defense have ads?

Alien Defense shows ads; DefCom TD does not.

### Which is updated more often, DefCom TD or Alien Defense?

DefCom TD ships an update every 41 months, and Alien Defense every 2 weeks. Most recently, DefCom TD was updated on October 24, 2026 and Alien Defense on October 28, 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.*