# TerraWatch vs Seismic Risk

The clearest difference is in-app purchases: Seismic Risk at none against TerraWatch's 1. Seismic Risk also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. TerraWatch sells 1 one-off in-app purchase. Seismic Risk asks for nothing beyond the download.

## The numbers

| Metric | TerraWatch | Seismic Risk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 1 MB | 21 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Tolga Ulutas](https://appshunter.io/developer/1867266654) | [tarek alsemaan](https://appshunter.io/developer/6775231333) |

## What reviewers say

### TerraWatch

[App page](https://appshunter.io/ios/app/terrawatch/id6762412658)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TerraWatch Pro | $2.99 | one-time |


### Seismic Risk

[App page](https://appshunter.io/ios/app/seismic-risk/id6775231331)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TerraWatch free?

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

### Is Seismic Risk free?

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

### Do TerraWatch or Seismic Risk have ads?

Neither TerraWatch nor Seismic Risk shows ads.

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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.*