# AprilTag vs MQTTAnalyzer

The clearest difference is review sentiment: MQTTAnalyzer at 81% against AprilTag's 25%. MQTTAnalyzer also leads on rating (4.5 vs 3.6) and update cadence (every 5 days vs every 33 months). AprilTag's advantage is iOS requirement (12.0 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

MQTTAnalyzer holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 9 and 23 respectively. Written reviews point the same way: 25% of AprilTag's written reviews are positive against 81% of MQTTAnalyzer's.

AprilTag ships an update every 33 months, MQTTAnalyzer every 5 days. The most recent releases landed on September 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AprilTag | MQTTAnalyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (9 ratings)](https://appshunter.io/ios/app/apriltag/id736108128/reviews) | **[4.5 (23 ratings)](https://appshunter.io/ios/app/mqttanalyzer/id1493015317/reviews)** |
| Number of ratings | 9 | **23** |
| Positive reviews | 25.0% of reviews | **80.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 5 MB | 12 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Edwin Olson](https://appshunter.io/developer/736108131) | [Philipp Arndt](https://appshunter.io/developer/1493015316) |

## What reviewers say

### AprilTag

[App page](https://appshunter.io/ios/app/apriltag/id736108128)

This utility app detects 2D barcodes for robotics and augmented reality. It can function independently or send detected tag information to another device via UDP, transforming your iPhone into a robot tracking system.

**Highlights:** Fast and accurate 2D barcode detection, Stand-alone detection mode, UDP broadcasting of detected tags, Robot tracking system functionality, Augmented reality applications

**Features:** macOS Compatibility

**In-app purchases:** none


### MQTTAnalyzer

[App page](https://appshunter.io/ios/app/mqttanalyzer/id1493015317)

Monitor and debug MQTT brokers on your Apple devices. Visualize data with hierarchical views, JSON highlighting, and charts. Publish messages, manage multiple brokers, and sync settings across devices. Free and open source.

**Highlights:** MQTT 3.1.1 and 5.0 support, JSON highlighting and pretty-printing, Time series charts for numeric values, Connect to multiple brokers, Full-text search, Publish messages, iCloud sync

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AprilTag free?

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

### Is MQTTAnalyzer free?

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

### Which has better reviews, AprilTag or MQTTAnalyzer?

MQTTAnalyzer is rated higher. AprilTag averages 3.6 out of 5 from 9 ratings, while MQTTAnalyzer averages 4.5 from 23 ratings.

### Do AprilTag or MQTTAnalyzer have ads?

Neither AprilTag nor MQTTAnalyzer shows ads.

### Which is updated more often, AprilTag or MQTTAnalyzer?

AprilTag ships an update every 33 months, and MQTTAnalyzer every 5 days. Most recently, AprilTag was updated on September 24, 2026 and MQTTAnalyzer on October 16, 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.*