# Sismologia vs Eruption Time

The clearest difference is in-app purchases: Eruption Time at none against Sismologia's 1. Eruption Time also leads on ads (none vs shown). Sismologia's advantage is update cadence (every 6 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sismologia sells 1 in-app purchase, starting at $0.49 per month. Eruption Time asks for nothing beyond the download.

Sismologia ships an update every 6 days, Eruption Time every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sismologia | Eruption Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/sismologia/id956882202/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 326 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Birdie](https://appshunter.io/developer/501577796) | [Project Barn LLC](https://appshunter.io/developer/1869576301) |

## What reviewers say

### Sismologia

[App page](https://appshunter.io/ios/app/sismologia/id956882202)

Get instant, reliable information on the latest earthquakes and tremors worldwide. Receive real-time seismic data from multiple official sources and get immediate notifications for events near your location without needing to keep the app open.

**Highlights:** Real-time seismic data, Multiple official sources, Instant earthquake notifications, Location-based alerts, Ad-free subscription option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | per month |


### Eruption Time

[App page](https://appshunter.io/ios/app/eruption-time/id6780317289)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sismologia free?

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

### Is Eruption Time free?

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

### Do Sismologia or Eruption Time have ads?

Sismologia shows ads; Eruption Time does not.

### Which is updated more often, Sismologia or Eruption Time?

Sismologia ships an update every 6 days, and Eruption Time every 3 weeks. Most recently, Sismologia was updated on October 24, 2026 and Eruption Time 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.*