# thEarthquake Tracker vs Global Seismic Data

The clearest difference is in-app purchases: Global Seismic Data at none against thEarthquake Tracker's 2. thEarthquake Tracker's advantage is update cadence (every 3 months vs every 8 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. thEarthquake Tracker sells 2 one-off in-app purchases. Global Seismic Data asks for nothing beyond the download.

thEarthquake Tracker ships an update every 3 months, Global Seismic Data every 8 months. The most recent releases landed on September 17, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | thEarthquake Tracker | Global Seismic Data |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/thearthquake-tracker/id1090616122/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 26 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ThirdHalf.com, LLC](https://appshunter.io/developer/914115418) | [Global Seismic Data NZ Limited](https://appshunter.io/developer/1469156236) |

## What reviewers say

### thEarthquake Tracker

[App page](https://appshunter.io/ios/app/thearthquake-tracker/id1090616122)

Stay informed about global seismic activity with real-time earthquake updates. Receive instant notifications when tremors occur, ensuring you're always aware of potential hazards.

**Highlights:** Real-time earthquake data, Global coverage, Instant notifications, Awareness of seismic events

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| thEarthQuake Remove Advertising | $0.99 | one-time |
| thEarthquake Tip Jar | $0.99 | one-time |


### Global Seismic Data

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is thEarthquake Tracker free?

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

### Is Global Seismic Data free?

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

### Do thEarthquake Tracker or Global Seismic Data have ads?

Neither thEarthquake Tracker nor Global Seismic Data shows ads.

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

thEarthquake Tracker ships an update every 3 months, and Global Seismic Data every 8 months. Most recently, thEarthquake Tracker was updated on September 17, 2026 and Global Seismic Data on June 1, 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.*