# Global Seismic Data vs iQuake

The clearest difference is in-app purchases: Global Seismic Data at none against iQuake's 2. iQuake's advantage is update cadence (every 9 days vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iQuake sells 2 in-app purchases, starting at $12.99 per year. Global Seismic Data asks for nothing beyond the download.

Global Seismic Data ships an update every 8 months, iQuake every 9 days. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Global Seismic Data | iQuake |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Size | 26 MB | 32 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Global Seismic Data NZ Limited](https://appshunter.io/developer/1469156236) | [DRO1D LABS LIMITED](https://appshunter.io/developer/1803083780) |

## What reviewers say

### Global Seismic Data

[App page](https://appshunter.io/ios/app/global-seismic-data/id1469156237)

**Features:** macOS Compatibility

**In-app purchases:** none


### iQuake

[App page](https://appshunter.io/ios/app/iquake-earthquake-tracker/id6744178925)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iQuake Annual Premium Access | $12.99 | per year |
| iQuake Lifetime Premium Access | $34.99 | one-time |


## Frequently asked questions

### Is Global Seismic Data free?

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

### Is iQuake free?

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

### Do Global Seismic Data or iQuake have ads?

Neither Global Seismic Data nor iQuake shows ads.

### Which is updated more often, Global Seismic Data or iQuake?

Global Seismic Data ships an update every 8 months, and iQuake every 9 days. Most recently, Global Seismic Data was updated on October 11, 2026 and iQuake on October 4, 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.*