# Protect TD vs Lightkeep

The clearest difference is update cadence: Lightkeep at every 4 days against Protect TD's every 2 weeks. Protect TD's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Protect TD ships an update every 2 weeks, Lightkeep every 4 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Protect TD | Lightkeep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/protect-td/id1575430933/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 136 MB | 36 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 12+ |
| Developer | [Heather Marriott](https://appshunter.io/developer/919616194) | [彬 李](https://appshunter.io/developer/6809178480) |

## What reviewers say

### Protect TD

[App page](https://appshunter.io/ios/app/protect-td/id1575430933)

Defend adorable animals from environmental hazards in this offline tower defense game. Choose from multiple difficulty levels and strategically place towers to stop enemies like plastic bottles and garbage bags. Enjoy a pure, ad-free gaming experience.

**Highlights:** Offline gameplay, No ads or in-app purchases, Multiple difficulty levels, Protect various cute animals, Environmental enemies, Strategic tower placement

**Features:** macOS Compatibility

**In-app purchases:** none


### Lightkeep

[App page](https://appshunter.io/ios/app/lightkeep-tower-defense/id6816564233)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Protect TD free?

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

### Is Lightkeep free?

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

### Do Protect TD or Lightkeep have ads?

Neither Protect TD nor Lightkeep shows ads.

### Which is updated more often, Protect TD or Lightkeep?

Protect TD ships an update every 2 weeks, and Lightkeep every 4 days. Most recently, Protect TD was updated on November 3, 2026 and Lightkeep on November 6, 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.*