I am interesting in linking the ATK (or even the SDK when I am granted access) with a Qt Android App. I am curious to know what the best strategy would be. It seems that I would have to create a Java class to interface with the ATK recogniser and access it via the Qt QAndroidJniObject  class.
Does anybody else have a suggestion or can confirm this is a good strategy?
Thanks for your request. On our side, we only use eclipse or android studio to develop with our ATK android package. So we can't advise you about the best strategy to achieve this. At first it looks less complex to do it with our Interactive Text component compared to other ATK widgets, but it depends on the use case of your application, actually.
Regarding our SDK offer, we invite you to fill in this form: https://developer.myscript.com/atk-quote-request