# Disaster Watch vs Tremor

The clearest difference is rating: Disaster Watch at 5.0 against Tremor's 4.4. Disaster Watch also leads on in-app purchases (none vs 3) and ads (none vs shown). Tremor's advantage is ratings volume (9 vs 1). On price and device support there is nothing between them.

Both are free to download. Tremor sells 3 in-app purchases, starting at $2.99 per month. Disaster Watch asks for nothing beyond the download.

Disaster Watch holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Tremor has 9 ratings behind it against 1, so its average is the more settled of the two.

Disaster Watch ships an update every 2 days, Tremor monthly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Disaster Watch | Tremor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/disaster-watch/id1128050009/reviews)** | [4.4 (9 ratings)](https://appshunter.io/ios/app/tremor-earthquake-tracker/id6768070218/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 67 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Maail](https://appshunter.io/developer/578867563) | [FORTYNINE AND A HALF LABS, LLC](https://appshunter.io/developer/1896535861) |

## What reviewers say

### Disaster Watch

[App page](https://appshunter.io/ios/app/disaster-watch/id1128050009)

Receive timely alerts for weather, earthquakes, and tsunamis directly from Maldivian authorities. This application is designed to keep you informed and safe.

**Highlights:** Weather alerts, Earthquake alerts, Tsunami alerts, Official alerts from Maldivian authorities, Safety information

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

**In-app purchases:** none


### Tremor

[App page](https://appshunter.io/ios/app/tremor-earthquake-tracker/id6768070218)

Track earthquakes worldwide in real-time with an interactive 3D globe. Get instant updates from USGS and EMSC, and learn about seismic activity. Offers premium features for ad-free experience and advanced insights.

**Highlights:** Real-time earthquake tracking, Interactive 3D globe map, Instant USGS/EMSC data updates, Accurate quake distance from your location, Earthquake learning resources, Ad-free Pro version with smart alerts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tremor Pro Monthly | $2.99 | per month |
| Tremor Pro Annual | $19.99 | per year |
| Tremor Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Disaster Watch free?

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

### Is Tremor free?

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

### Which has better reviews, Disaster Watch or Tremor?

Disaster Watch is rated higher. Disaster Watch averages 5.0 out of 5 from 1 ratings, while Tremor averages 4.4 from 9 ratings.

### Do Disaster Watch or Tremor have ads?

Tremor shows ads; Disaster Watch does not.

### Which is updated more often, Disaster Watch or Tremor?

Disaster Watch ships an update every 2 days, and Tremor monthly. Most recently, Disaster Watch was updated on November 2, 2026 and Tremor on November 9, 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.*