Comparison

MQTT Loupe vs AtOnline Auth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MQTT Loupe

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
Read full description

MQTT Loupe is an intuitive utility to inspect MQTT messages exchanged on an MQTT broker. Connect to any public or local MQTT broker, subscribe to topics and view details of messages being transmitted. Don't remember that one message or topic? Fire up the search to find it instantly using full-text search through all topics, and results updating live with new hits appearing as they arrive. With built-in JSON highlighting, this app is perfect for monitoring Zigbee2Mqtt. And if you need to work with binary message payloads, the built-in hex viewer has you covered. Got frequently used topics that are further down the hierarchy? Make them favorites for easy and instant access. Concerned about security? Let the server's certificate be validated before connecting; you don't have to allow insecure connections based on untrusted certificates. Need more? Provide a client certificate to authenticate yourself against the server. All features in a nutshell: - clean and simple interface - hierarchical topic view - sidebar with history of recently opened topics - powerful full-text search capabilities across all topics and for a single message - search results are automatically updated when new messages arrive - extended message details, with proper formatting and syntax highlighting of JSON messages - support for binary message payloads, displayed as either ISO Latin-1 or in a hex view - easily copy any topic or message value - authentication with username/password or client certificates - connect over MQTT or WebSocket protocol - support for MQTT 3.1.1 and MQTT 5 - support for SSL/TLS - support for the Server Name Indication (SNI) TLS extension - support for self-signed certificates - full server certificate validation - manage and connect multiple brokers at once - full support for quality of service

About

AtOnline Auth

Features
Read full description

AtOnline Auth is a secure two-factor authentication (2FA) app that helps protect your online accounts with time-based one-time passwords (TOTP), HMAC-based one-time passwords (HOTP), and OCRA challenge-response authentication. KEY FEATURES: Secure Token Management - Store and manage all your 2FA tokens in one place - Add tokens easily by scanning QR codes or entering details manually - Support for TOTP, HOTP, and OCRA (RFC 6287) authentication methods - Configurable token settings (6 or 8 digits, various time periods) OCRA Challenge-Response - Full RFC 6287 OCRA support for enterprise authentication - Scan challenge QR codes to auto-fill and generate responses - Support for PIN, session data, counter, and timestamp options - Compatible with banking and high-security applications Strong Security - Master password protection with industry-standard encryption - Biometric authentication (Face ID and Touch ID) for quick access - All sensitive data encrypted locally on your device - No cloud storage - your secrets never leave your device Smart Organization with Tags - Create custom tags to organize tokens by category (work, personal, banking, crypto) - Filter and find tokens instantly using tags - Manage dozens of accounts without losing track - Quick search across all your tokens Backup & Recovery - Secure encrypted backup export - Password-protected import/restore functionality - Never lose access to your accounts SUPPORTED ALGORITHMS: - SHA1, SHA256, and SHA512 hash algorithms - Compatible with all standard TOTP/HOTP/OCRA authenticator systems AtOnline Auth works offline and keeps your authentication codes secure and accessible whenever you need them.

Screenshots

MQTT Loupe4 screens
AtOnline Auth3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

MQTT Loupe ships an update every 3 weeks, AtOnline Auth every 9 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
MQTT Loupe versus AtOnline Auth: the parameters behind the verdict, then further details
ParameterMQTT LoupeAtOnline Auth
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size6 MB20 MB
Age rating4+4+
DeveloperJakob BielingKarpelès Lab Inc.

In-app purchases

None

MQTT Loupe

No in-app purchases

None

AtOnline Auth

No in-app purchases

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 October 24, 2026 and AtOnline Auth on October 28, 2026.

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