# Subterranean vs Terrum DeepDrill

The clearest difference is in-app purchases: Subterranean at none against Terrum DeepDrill's 4. Subterranean also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Terrum DeepDrill sells 4 one-off in-app purchases. Subterranean asks for nothing beyond the download.

## The numbers

| Metric | Subterranean | Terrum DeepDrill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | — |
| Size | 142 MB | 307 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Tayin Wallace](https://appshunter.io/developer/1658923996) | [KUBRA BASTEM](https://appshunter.io/developer/6801094977) |

## What reviewers say

### Subterranean

[App page](https://appshunter.io/ios/app/subterranean/id6754824884)

**In-app purchases:** none


### Terrum DeepDrill

[App page](https://appshunter.io/ios/app/terrum-deepdrill/id6801094975)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Terra Credits | $0.99 | one-time |
| Terrum Premium | $4.99 | one-time |
| 100 Terra Credits | $4.99 | one-time |
| 500 Terra Credits | $19.99 | one-time |


## Frequently asked questions

### Is Subterranean free?

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

### Is Terrum DeepDrill free?

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

### Do Subterranean or Terrum DeepDrill have ads?

Terrum DeepDrill shows ads; Subterranean 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.*