# Tsunami US vs Earthquake Tracker

The clearest difference is rating: Earthquake Tracker at 4.5 against Tsunami US's 2.8. Earthquake Tracker also leads on update cadence (every 2 weeks vs every 3 months) and review sentiment (75% vs 50%). Tsunami US's advantage is in-app purchases (none vs 3) and iOS requirement (9.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Earthquake Tracker sells 3 in-app purchases, starting at $3.99 per 7 days. Tsunami US asks for nothing beyond the download.

Earthquake Tracker holds the better App Store score, 4.5 against 2.8. Both are backed by a comparable volume of ratings — 17 and 77 respectively. Written reviews point the same way: 50% of Tsunami US's written reviews are positive against 75% of Earthquake Tracker's.

Tsunami US ships an update every 3 months, Earthquake Tracker every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Tsunami US | Earthquake Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (17 ratings)](https://appshunter.io/ios/app/tsunami-us/id1102725866/reviews) | **[4.5 (77 ratings)](https://appshunter.io/ios/app/earthquake-tracker-alerts-map/id6475635157/reviews)** |
| Number of ratings | 17 | **77** |
| Positive reviews | 50.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 41 MB | 45 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Hackl](https://appshunter.io/developer/1102725865) | [Metin Atalay](https://appshunter.io/developer/1649101503) |

## What reviewers say

### Tsunami US

[App page](https://appshunter.io/ios/app/tsunami-us/id1102725866)

This app helps users understand their tsunami risk by providing inundation maps for the US West Coast and Hawaii. It offers information on tsunami warnings, preparedness, and links to relevant authorities.

**Highlights:** Tsunami inundation maps, Risk assessment for US West Coast, Risk assessment for Hawaii, Tsunami warning information, Preparedness guidance, Links to authorities

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

**In-app purchases:** none


### Earthquake Tracker

[App page](https://appshunter.io/ios/app/earthquake-tracker-alerts-map/id6475635157)

Monitor seismic activity worldwide with real-time earthquake alerts and an interactive map. Get detailed information, tsunami warnings, and historical data. Customize notifications for personalized safety.

**Highlights:** Live earthquake feed, Interactive world map, Detailed earthquake information, Tsunami alerts, Personalized notifications, Historical earthquake data

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $3.99 | per 7 days |
| All Access | $6.99 | per month |
| All Access | $12.99 | per year |


## Frequently asked questions

### Is Tsunami US free?

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

### Is Earthquake Tracker free?

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

### Which has better reviews, Tsunami US or Earthquake Tracker?

Earthquake Tracker is rated higher. Tsunami US averages 2.8 out of 5 from 17 ratings, while Earthquake Tracker averages 4.5 from 77 ratings.

### Do Tsunami US or Earthquake Tracker have ads?

Neither Tsunami US nor Earthquake Tracker shows ads.

### Which is updated more often, Tsunami US or Earthquake Tracker?

Tsunami US ships an update every 3 months, and Earthquake Tracker every 2 weeks. Most recently, Tsunami US was updated on October 24, 2026 and Earthquake Tracker 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.*