# VulnWatch vs QuakeSafe Dam

The clearest difference is in-app purchases: QuakeSafe Dam at none against VulnWatch's 3. QuakeSafe Dam also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. VulnWatch sells 3 one-off in-app purchases. QuakeSafe Dam asks for nothing beyond the download.

## The numbers

| Metric | VulnWatch | QuakeSafe Dam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quakesafe-dam/id6739592421/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | — |
| Monetization | — | Free |
| Size | 1 MB | 65 MB |
| Requires iOS | 18.6 | **18.2** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Naoyuki Sato](https://appshunter.io/developer/1714035733) | [John Nguyen](https://appshunter.io/developer/1573137293) |

## What reviewers say

### VulnWatch

[App page](https://appshunter.io/ios/app/vulnwatch/id6470704548)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small gift | $4.99 | one-time |
| Medium gift | $9.99 | one-time |
| Large gift | $19.99 | one-time |


### QuakeSafe Dam

[App page](https://appshunter.io/ios/app/quakesafe-dam/id6739592421)

This app offers real-time monitoring of California dams and assesses their earthquake vulnerability. It provides engineers, residents, and safety planners with accurate data on seismic events and dam conditions to ensure preparedness.

**Highlights:** Interactive map of dams and seismic events, Detailed dam profiles, Seismic impact assessments, Customizable alerts, Reliable data sources (USGS, NID)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VulnWatch free?

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

### Is QuakeSafe Dam free?

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

### Do VulnWatch or QuakeSafe Dam have ads?

VulnWatch shows ads; QuakeSafe Dam does not.

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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.*