# Tsunami US vs Earth++

The clearest difference is rating: Earth++ at 4.4 against Tsunami US's 2.8. Earth++ also leads on ratings volume (285 vs 17). Tsunami US's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Earth++ sells 5 in-app purchases, starting at $0.99 per month. Tsunami US asks for nothing beyond the download.

Earth++ holds the better App Store score, 4.4 against 2.8. That said, the two scores are not equally well evidenced: Earth++ has 285 ratings behind it against 17, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 24, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Tsunami US | Earth++ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (17 ratings)](https://appshunter.io/ios/app/tsunami-us/id1102725866/reviews) | **[4.4 (285 ratings)](https://appshunter.io/ios/app/earth-plus-plus/id1137619502/reviews)** |
| Number of ratings | 17 | **285** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 41 MB | 85 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Matthias Hackl](https://appshunter.io/developer/1102725865) | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) |

## 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


### Earth++

[App page](https://appshunter.io/ios/app/earth-plus-plus/id1137619502)

Monitor global weather, earthquakes, climate changes, and marine conditions. Access real-time data on storms and natural events. An optional subscription removes ads and unlocks advanced tracking for tropical cyclones and ocean forecasts.

**Highlights:** Storm tracking, Earthquake monitoring, Climate change data, Marine conditions, Tropical cyclone tracking, Ocean forecasts

**Features:** Family Sharing, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $0.99 | per month |
| Tropical Cyclone Coverage | $2.99 | one-time |
| Ocean Conditions Forecasts | $2.99 | one-time |
| Global CIimate  Imagery | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is Tsunami US free?

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

### Is Earth++ free?

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

### Which has better reviews, Tsunami US or Earth++?

Earth++ is rated higher. Tsunami US averages 2.8 out of 5 from 17 ratings, while Earth++ averages 4.4 from 285 ratings.

### Do Tsunami US or Earth++ have ads?

Earth++ shows ads; Tsunami US does not.

### Which is updated more often, Tsunami US or Earth++?

Tsunami US ships an update every 3 months, and Earth++ every 3 months. Most recently, Tsunami US was updated on September 24, 2026 and Earth++ on September 27, 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.*