Perpetual Subscription
  • Apps never expire
  • Free upgrade
  • Always get the latest apps

Common Problems

  • What is allowed or not allowed when using MQTT Assistant ?
  • Please refer to our End User License Agreement.
  • How to activate MQTT Assistant ?
  • On Windows version, click Setting → activate from menubar. Then you can enter License in the popped up license panel.
  • How to get invoice ?
  • If you purchased MQTT Assistant on our website (, then the invoice is delivered via Paddle,
    and you can find it from links in the mail send to your email inbox after the purchase.
  • What's the pricing model of MQTT Assistant ?
  • MQTT Assistant's Full License is granted to "user", it can be activated on at most 2 devices of one person for one license without expire time.
    You can evaluate MQTT Assistant for free before purchase a license code, and we promise a 7 days money refund from evaluation starts.
  • Where to get further support / help ?
  • Please check our support site.

Free Trial

These authorization codes are valid for 3 to 7 days and are provided for the purpose of experiencing the full functionality of the software