# Drill Defense TD vs Orbital Defense Protocol

The clearest difference is price: Drill Defense TD at Free against Orbital Defense Protocol's $0.99. Drill Defense TD also leads on iOS requirement (12.0 vs 14.0). Orbital Defense Protocol's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Drill Defense TD is free to download; Orbital Defense Protocol costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Drill Defense TD | Orbital Defense Protocol |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | — |
| Size | 114 MB | 68 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stubborn Gaming Studios LLP](https://appshunter.io/developer/1545884281) | [Carlos Nieto](https://appshunter.io/developer/1896214451) |

## What reviewers say

### Drill Defense TD

[App page](https://appshunter.io/ios/app/drill-defense-td/id6667114385)

**Features:** macOS Compatibility

**In-app purchases:** none


### Orbital Defense Protocol

[App page](https://appshunter.io/ios/app/orbital-defense-protocol/id6766149607)

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

**In-app purchases:** none


## Frequently asked questions

### Is Drill Defense TD free?

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

### Is Orbital Defense Protocol free?

Orbital Defense Protocol costs $0.99, with no in-app purchases.

### Do Drill Defense TD or Orbital Defense Protocol have ads?

Drill Defense TD shows ads; Orbital Defense Protocol does not.

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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.*