# Quick Quake vs Pocket Seismograph

The clearest difference is update cadence: Pocket Seismograph at every 3 months against Quick Quake's every 6 months. Quick Quake's advantage is iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick Quake ships an update every 6 months, Pocket Seismograph every 3 months. The most recent releases landed on October 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Quick Quake | Pocket Seismograph |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/quick-quake/id743534887/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 9 MB | 23 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESS Earth Sciences](https://appshunter.io/developer/1424839112) | [lapnito.cz s.r.o.](https://appshunter.io/developer/1577358577) |

## What reviewers say

### Quick Quake

[App page](https://appshunter.io/ios/app/quick-quake/id743534887)

This tool allows for rapid earthquake location and magnitude verification. It serves as an educational resource, demonstrating how seismic waves determine earthquake epicenters. Users can quickly analyze data to refine automatic event notifications.

**Highlights:** Rapid earthquake location, Magnitude verification, P and S wave analysis, Demo data for education, Seismic observatory data integration, Adjustable travel velocities and depth

**Features:** macOS Compatibility

**In-app purchases:** none


### Pocket Seismograph

[App page](https://appshunter.io/ios/app/pocket-seismograph-vibration/id6766446046)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick Quake free?

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

### Is Pocket Seismograph free?

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

### Do Quick Quake or Pocket Seismograph have ads?

Neither Quick Quake nor Pocket Seismograph shows ads.

### Which is updated more often, Quick Quake or Pocket Seismograph?

Quick Quake ships an update every 6 months, and Pocket Seismograph every 3 months. Most recently, Quick Quake was updated on October 4, 2026 and Pocket Seismograph on October 25, 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.*