# DoubleSafe vs SCATalogue

The clearest difference is rating: SCATalogue at 5.0 against DoubleSafe's 2.2. SCATalogue also leads on iOS requirement (12.4 vs 15.0). DoubleSafe's advantage is device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

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

SCATalogue holds the better App Store score, 5.0 against 2.2. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

DoubleSafe ships an update every 8 months, SCATalogue every 6 months. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DoubleSafe | SCATalogue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (5 ratings)](https://appshunter.io/ios/app/doublesafe/id951100842/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/scatalogue/id1121801990/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Free | Free |
| Size | 9 MB | 164 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Serverdata.Net, Inc.](https://appshunter.io/developer/636558397) | [California Department of Fish and Wildlife](https://appshunter.io/developer/952783582) |

## What reviewers say

### DoubleSafe

[App page](https://appshunter.io/ios/app/doublesafe/id951100842)

Enhance your online security with an extra layer of protection. This app provides two-factor authentication via push notifications or one-time passcodes to verify your identity during sign-ins.

**Highlights:** Two-factor authentication, Push notification approvals, One-time passcode generation, Enhanced account security, User account verification

**In-app purchases:** none


### SCATalogue

[App page](https://appshunter.io/ios/app/scatalogue/id1121801990)

This app streamlines the collection of shoreline oiling data during spill responses. It's designed for marine environments and uses NOAA's standard SCAT shoreline oiling summary form. Data can be easily transferred via email or other available methods.

**Highlights:** Shoreline cleanup assessment data collection, Supports NOAA standard SCAT form, Designed for marine spill response, Data transfer via email and other methods, JSON and geoJSON data output, Optimized for iPad use

**In-app purchases:** none


## Frequently asked questions

### Is DoubleSafe free?

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

### Is SCATalogue free?

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

### Which has better reviews, DoubleSafe or SCATalogue?

SCATalogue is rated higher. DoubleSafe averages 2.2 out of 5 from 5 ratings, while SCATalogue averages 5.0 from 3 ratings.

### Do DoubleSafe or SCATalogue have ads?

Neither DoubleSafe nor SCATalogue shows ads.

### Which is updated more often, DoubleSafe or SCATalogue?

DoubleSafe ships an update every 8 months, and SCATalogue every 6 months. Most recently, DoubleSafe was updated on October 9, 2026 and SCATalogue on October 15, 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.*