--- title: "MQTTool - Reviews, Revenue and Downloads in United States | Apple App Store" description: "This is an MQTT client and test tool. MQTT is a machine-to-machine (M2M) messaging protocol commonly used for IoT applications. For more information on MQTT visit http://mqtt.org MQTTool can connect " --- # MQTTool — United States ![MQTTool App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/99/f4/b4/99f4b4b7-d6bd-3082-3f71-cf9f8ce53416/AppIcon-0-1x_U007emarketing-0-0-GLES2_U002c0-512MB-sRGB-0-0-0-85-220-0-0-0-7.png/434x0w.png) **Developer:** [Brent Petit](https://apptail.io/developer/brent-petit-KGfe) **Category:** Utilities **Rating:** 4.3/5 (26 ratings) **Price:** Free **Bundle ID:** com.brentpetit.MQTTool **Store:** Apple App Store **Country:** United States **Version:** 2.6 (released 2019-04-10) **Original Release:** 2016-02-25 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1085976398) **AppTail Page:** [https://apptail.io/app/mqttool-vRW/united-states](https://apptail.io/app/mqttool-vRW/united-states) ## MQTTool Description This is an MQTT client and test tool. MQTT is a machine-to-machine (M2M) messaging protocol commonly used for IoT applications. For more information on MQTT visit MQTTool can connect to authenticated and unauthenticated MQTT brokers, subscribe to topics, and publish messages to topics. I built this tool as i was doing my own MQTT investigations and I've posted it hoping others would find it useful too. I continue to use it on projects, and I'm continuing to look to improve this tool. If there are changes that would make this more useful, please send me feedback. Thanks! ## MQTTool Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/fd/f2/c0/fdf2c002-9470-cd48-98c8-3b06a94b7f1e/pr_source.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/5e/d5/91/5ed59116-b0af-6c20-4a6f-bbb661f85c16/pr_source.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/c0/ea/21/c0ea21e9-1aa3-7846-f0e4-05a00f9b351a/pr_source.png/1242x2688.png) ## MQTTool Rating Breakdown in United States - 5 stars: 20 (77%) - 4 stars: 2 (8%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 4 (15%) ## MQTTool Reviews in United States ### ***** "Very nice simple app" I was able to connect to my local ESP32 server, subscribe to topics and publish on topics. The interface is very intuitive. I would suggest one improvement - option to publish in JSON format. I published a message in JSON format but it was not recognized by the server. It would be great to add JSON format. I commend you for this very nice app !!! Thanks :) -- Homme4Hommes, 2025-06-25 ### *---- "wont allow me to enter subscription" does not open virtual keyboard when touching the field on iphone -- TurboMaster, 2024-01-14 ### *---- "Couldn’t get it work" Couldn’t get it to work. Bummer huh? -- SFC Bob, 2022-11-09 ### ***** "Exactly the Right Tool!" I’m just starting to understand the MQTT side of smart devices and this app I had connected and sending & receiving on all first attempts. Very user friendly! -- Jace031477, 2021-09-05 ### *---- "Unable to connect to server" It won’t connect to my server. I am using the same credentials and settings as I use in an app on my laptop. Just won’t connect -- Kchest63, 2020-03-25 ### ***** "Works great." You need to push on the text in the body of the page for both “connect” and “publish” rather than below on the menu bar. These could be highlighted or a different color and In bold to make it a little nicer. But it works great! I tried it for publishing and subscribing to a Mosquitto MQTT broker on a Raspberry Pi and had no troubles. Great app. -- Ed_111, 2020-01-02 ### ****- "Cool but..." Cool useful app. However, I wish there was a way to use Siri with it. -- BbbbTayBledsoes, 2019-11-20 ### ****- "Handy utility, although UI a bit confusing" I was spending a but of time checking my mqtt broker until I finally realized I need to tap on the “connect” text in the main window instead of the “connect” icon at the bottom left of the screen 😳 Once that was sorted out the app works nicely 👍 -- Sardjono, 2019-08-13 ### ***** "good and easy to use" simple but works great for me -- 还送去涑, 2019-06-13 ### ***** "More function needed" Thanks for developing this app. Very handy. Is it possible add more function, such as sub multiple subjects and pub automatically -- crash IOS9.1, 2019-04-11 [View all MQTTool reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## MQTTool Discovered Keywords - mymqtt - mqttool - mqtt ## Apps Similar to MQTTool - [ESP BLE Provisioning](https://apptail.io/app/esp-ble-provisioning-zRX/united-states) - [MQTT-Client](https://apptail.io/app/mqtt-client-JAdb/united-states) - [UDP/TCP/REST Network Utility](https://apptail.io/app/udptcprest-network-utility-KCKb/united-states) - [Tasmotrol: Tasmota & Shelly](https://apptail.io/app/tasmotrol-tasmota-shelly-YwLb/united-states) - [MQTTAnalyzer](https://apptail.io/app/mqttanalyzer-GXLb/united-states) - [Remote-RED](https://apptail.io/app/remote-red-JXLb/united-states) - [MQTT Loupe](https://apptail.io/app/mqtt-loupe-Czjd/united-states) - [ProxMobo – Proxmox VE & PBS](https://apptail.io/app/proxmobo-proxmox-ve-pbs-yLcm/united-states) - [Dash IoT](https://apptail.io/app/dash-iot-gWWm/united-states) - [IoT MQTT Panel](https://apptail.io/app/iot-mqtt-panel-VuWn/united-states) ## MQTTool Available In - [United States](https://apptail.io/app/mqttool-vRW/united-states) - [Germany](https://apptail.io/app/mqttool-vRW/germany) - [China](https://apptail.io/app/mqttool-vRW/china) - [Taiwan](https://apptail.io/app/mqttool-vRW/taiwan) - [Russia](https://apptail.io/app/mqttool-vRW/russia) - [Canada](https://apptail.io/app/mqttool-vRW/canada) - [France](https://apptail.io/app/mqttool-vRW/france) - [Australia](https://apptail.io/app/mqttool-vRW/australia) - [Switzerland](https://apptail.io/app/mqttool-vRW/switzerland) - [Brazil](https://apptail.io/app/mqttool-vRW/brazil) - [Netherlands](https://apptail.io/app/mqttool-vRW/netherlands) - [Thailand](https://apptail.io/app/mqttool-vRW/thailand) - [Malaysia](https://apptail.io/app/mqttool-vRW/malaysia) - [Ukraine](https://apptail.io/app/mqttool-vRW/ukraine) - [Japan](https://apptail.io/app/mqttool-vRW/japan) - [Mexico](https://apptail.io/app/mqttool-vRW/mexico) - [Belgium](https://apptail.io/app/mqttool-vRW/belgium) - [Argentina](https://apptail.io/app/mqttool-vRW/argentina) - [Sweden](https://apptail.io/app/mqttool-vRW/sweden) - [Hungary](https://apptail.io/app/mqttool-vRW/hungary) - [Vietnam](https://apptail.io/app/mqttool-vRW/vietnam) - [Spain](https://apptail.io/app/mqttool-vRW/spain) - [Poland](https://apptail.io/app/mqttool-vRW/poland) - [Singapore](https://apptail.io/app/mqttool-vRW/singapore) - [United Kingdom](https://apptail.io/app/mqttool-vRW/united-kingdom) - [Italy](https://apptail.io/app/mqttool-vRW/italy) - [Denmark](https://apptail.io/app/mqttool-vRW/denmark) - [Chile](https://apptail.io/app/mqttool-vRW/chile) - [Finland](https://apptail.io/app/mqttool-vRW/finland) - [Hong Kong SAR China](https://apptail.io/app/mqttool-vRW/hong-kong) - [Austria](https://apptail.io/app/mqttool-vRW/austria) - [New Zealand](https://apptail.io/app/mqttool-vRW/new-zealand) - [Philippines](https://apptail.io/app/mqttool-vRW/philippines) - [Indonesia](https://apptail.io/app/mqttool-vRW/indonesia) - [Romania](https://apptail.io/app/mqttool-vRW/romania) - [Israel](https://apptail.io/app/mqttool-vRW/israel) - [Slovenia](https://apptail.io/app/mqttool-vRW/slovenia) - [India](https://apptail.io/app/mqttool-vRW/india) - [Türkiye](https://apptail.io/app/mqttool-vRW/turkey) - [South Africa](https://apptail.io/app/mqttool-vRW/south-africa) - [Latvia](https://apptail.io/app/mqttool-vRW/latvia) - [Armenia](https://apptail.io/app/mqttool-vRW/armenia) - [Azerbaijan](https://apptail.io/app/mqttool-vRW/azerbaijan) - [Bulgaria](https://apptail.io/app/mqttool-vRW/bulgaria) - [Bahrain](https://apptail.io/app/mqttool-vRW/bahrain) - [Bermuda](https://apptail.io/app/mqttool-vRW/bermuda) - [Belarus](https://apptail.io/app/mqttool-vRW/belarus) - [Colombia](https://apptail.io/app/mqttool-vRW/colombia) - [Cyprus](https://apptail.io/app/mqttool-vRW/cyprus) - [Czechia](https://apptail.io/app/mqttool-vRW/czechia) - [Dominican Republic](https://apptail.io/app/mqttool-vRW/dominican-republic) - [Algeria](https://apptail.io/app/mqttool-vRW/algeria) - [Ecuador](https://apptail.io/app/mqttool-vRW/ecuador) - [Estonia](https://apptail.io/app/mqttool-vRW/estonia) - [Egypt](https://apptail.io/app/mqttool-vRW/egypt) - [Greece](https://apptail.io/app/mqttool-vRW/greece) - [Croatia](https://apptail.io/app/mqttool-vRW/croatia) - [Ireland](https://apptail.io/app/mqttool-vRW/ireland) - [Iceland](https://apptail.io/app/mqttool-vRW/iceland) - [South Korea](https://apptail.io/app/mqttool-vRW/south-korea) - [Kuwait](https://apptail.io/app/mqttool-vRW/kuwait) - [Cayman Islands](https://apptail.io/app/mqttool-vRW/cayman-islands) - [Kazakhstan](https://apptail.io/app/mqttool-vRW/kazakhstan) - [Lebanon](https://apptail.io/app/mqttool-vRW/lebanon) - [Sri Lanka](https://apptail.io/app/mqttool-vRW/sri-lanka) - [Lithuania](https://apptail.io/app/mqttool-vRW/lithuania) - [United Arab Emirates](https://apptail.io/app/mqttool-vRW/united-arab-emirates) - [Madagascar](https://apptail.io/app/mqttool-vRW/madagascar) - [North Macedonia](https://apptail.io/app/mqttool-vRW/north-macedonia) - [Malta](https://apptail.io/app/mqttool-vRW/malta) - [Nigeria](https://apptail.io/app/mqttool-vRW/nigeria) - [Norway](https://apptail.io/app/mqttool-vRW/norway) - [Nepal](https://apptail.io/app/mqttool-vRW/nepal) - [Peru](https://apptail.io/app/mqttool-vRW/peru) - [Pakistan](https://apptail.io/app/mqttool-vRW/pakistan) - [Portugal](https://apptail.io/app/mqttool-vRW/portugal) - [Saudi Arabia](https://apptail.io/app/mqttool-vRW/saudi-arabia) - [Slovakia](https://apptail.io/app/mqttool-vRW/slovakia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*