# LoggerLink vs CrowdMag

The clearest difference is rating: CrowdMag at 4.3 against LoggerLink's 2.0. CrowdMag also leads on ratings volume (24 vs 1) and update cadence (every 2 months vs every 4 months). LoggerLink's advantage is review sentiment (67% vs 53%) and iOS requirement (12.0 vs 15.0). 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.

CrowdMag holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: CrowdMag has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of LoggerLink's written reviews are positive against 53% of CrowdMag's, so the app with the better star average is not the one people write more warmly about.

LoggerLink ships an update every 4 months, CrowdMag every 2 months. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | LoggerLink | CrowdMag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/loggerlink/id532185656/reviews) | **[4.3 (24 ratings)](https://appshunter.io/ios/app/crowdmag/id910578825/reviews)** |
| Number of ratings | 1 | **24** |
| Positive reviews | **66.7% of reviews** | 52.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 78 MB | 18 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Campbell Scientific](https://appshunter.io/developer/532185659) | [University of Colorado Boulder](https://appshunter.io/developer/972210292) |

## What reviewers say

### LoggerLink

[App page](https://appshunter.io/ios/app/loggerlink/id532185656)

This utility app enables direct communication between iOS devices and specific IP-enabled dataloggers. It facilitates field maintenance tasks like viewing and collecting data, managing files, and checking datalogger status.

**Highlights:** View real-time data, Graph historical data, Collect data, Set variables and toggle ports, Check datalogger status, Send programs and set clock, Manage files

**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 LoggerLink free?

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

### Is CrowdMag free?

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

### Which has better reviews, LoggerLink or CrowdMag?

CrowdMag is rated higher. LoggerLink averages 2.0 out of 5 from 1 ratings, while CrowdMag averages 4.3 from 24 ratings.

### Do LoggerLink or CrowdMag have ads?

Neither LoggerLink nor CrowdMag shows ads.

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

LoggerLink ships an update every 4 months, and CrowdMag every 2 months. Most recently, LoggerLink was updated on October 2, 2026 and CrowdMag on September 22, 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.*