# MQTT Loupe vs AtOnline Auth

The clearest difference is update cadence: MQTT Loupe at every 3 weeks against AtOnline Auth's every 9 months. MQTT Loupe also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

MQTT Loupe ships an update every 3 weeks, AtOnline Auth every 9 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | MQTT Loupe | AtOnline Auth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mqtt-loupe/id1617148458/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | Free | — |
| Size | 6 MB | 20 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jakob Bieling](https://appshunter.io/developer/1617148460) | [Karpelès Lab Inc.](https://appshunter.io/developer/1496744532) |

## What reviewers say

### MQTT Loupe

[App page](https://appshunter.io/ios/app/mqtt-loupe/id1617148458)

Inspect MQTT messages exchanged on a broker with this intuitive utility. Connect to brokers, subscribe to topics, and view message details. Features include JSON highlighting, hex viewer, and secure connection options.

**Highlights:** Inspect MQTT messages, Connect to any MQTT broker, Subscribe to topics, Full-text search across topics, JSON highlighting, Hex viewer for binary payloads, Secure connection options

**Features:** macOS Compatibility

**In-app purchases:** none


### AtOnline Auth

[App page](https://appshunter.io/ios/app/atonline-auth/id6747974636)

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

**In-app purchases:** none


## Frequently asked questions

### Is MQTT Loupe free?

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

### Is AtOnline Auth free?

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

### Do MQTT Loupe or AtOnline Auth have ads?

Neither MQTT Loupe nor AtOnline Auth shows ads.

### Which is updated more often, MQTT Loupe or AtOnline Auth?

MQTT Loupe ships an update every 3 weeks, and AtOnline Auth every 9 months. Most recently, MQTT Loupe was updated on November 3, 2026 and AtOnline Auth on October 28, 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.*