# SeismoCloud vs Seismometer ∞

The clearest difference is ads: SeismoCloud at none against Seismometer ∞'s shown. SeismoCloud also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Seismometer ∞'s advantage is update cadence (every 2 weeks vs every 6 months). On price and in-app purchases there is nothing between them.

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

SeismoCloud ships an update every 6 months, Seismometer ∞ every 2 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SeismoCloud | Seismometer ∞ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 49 MB | 16 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [informatica@sapienza](https://appshunter.io/developer/394356478) | [辰巳家有限公司](https://appshunter.io/developer/1781943256) |

## What reviewers say

### SeismoCloud

[App page](https://appshunter.io/ios/app/seismocloud/id922890238)

This app transforms your smartphone into a seismometer to detect earthquakes. It sends early warning alerts to users in affected areas, helping them receive notifications before feeling the tremors. Contribute to a scientific research project by simply installing and running the app.

**Highlights:** Smartphone seismometer, Early earthquake alerts, Crowdsourced data collection, Vibration detection, Privacy protection, Low power consumption

**Features:** macOS Compatibility

**In-app purchases:** none


### Seismometer ∞

[App page](https://appshunter.io/ios/app/seismometer/id6761700650)

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

**In-app purchases:** none


## Frequently asked questions

### Is SeismoCloud free?

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

### Is Seismometer ∞ free?

Seismometer ∞ is free to download, with no in-app purchases.

### Do SeismoCloud or Seismometer ∞ have ads?

Seismometer ∞ shows ads; SeismoCloud does not.

### Which is updated more often, SeismoCloud or Seismometer ∞?

SeismoCloud ships an update every 6 months, and Seismometer ∞ every 2 weeks. Most recently, SeismoCloud was updated on November 6, 2026 and Seismometer ∞ on November 5, 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.*