Not Private
Do not use this app if you want privacy. It is easy to set up your own MQTT server so no need to agree to this lack of privacy.
Yes, ATS MQTT Client is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
ATS MQTT Client is free.
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Do not use this app if you want privacy. It is easy to set up your own MQTT server so no need to agree to this lack of privacy.