# SafetyLine vs CrowdMag

The clearest difference is update cadence: SafetyLine at weekly against CrowdMag's every 2 months. CrowdMag's advantage is review sentiment (53% vs 39%) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SafetyLine ships an update weekly, CrowdMag every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SafetyLine | CrowdMag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (25 ratings)](https://appshunter.io/ios/app/crowdmag/id910578825/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | 39.1% of reviews | **52.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free | Free |
| Size | 238 MB | 18 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tsunami Solutions Ltd.](https://appshunter.io/developer/483249074) | [University of Colorado Boulder](https://appshunter.io/developer/972210292) |

## What reviewers say

### SafetyLine

[App page](https://appshunter.io/ios/app/safetyline/id483249071)

This app enhances lone worker safety with features like check-ins, fall detection, and GPS tracking. It provides real-time monitoring for administrators and can integrate with satellite devices for remote areas. It ensures compliance with safety regulations and offers peace of mind.

**Highlights:** Lone worker safety, Check-ins and alerts, Fall detection, GPS tracking, Panic button, Satellite device integration

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

**In-app purchases:** none


### CrowdMag

[App page](https://appshunter.io/ios/app/crowdmag/id910578825)

This app allows users to measure and contribute to scientific research on Earth's magnetic field using their smartphone. It offers features for recording magnetic data during various activities, including flights, and provides tools for data visualization and analysis.

**Highlights:** Measure magnetic field data, Contribute to scientific research, Record data during flights, Visualize data on maps and graphs, Magnetic calculator with WMM2020, Live magnetic compass, Export data via email/Google Drive

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SafetyLine free?

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

### Is CrowdMag free?

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

### Do SafetyLine or CrowdMag have ads?

Neither SafetyLine nor CrowdMag shows ads.

### Which is updated more often, SafetyLine or CrowdMag?

SafetyLine ships an update weekly, and CrowdMag every 2 months. Most recently, SafetyLine was updated on October 23, 2026 and CrowdMag on October 24, 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.*