To whom it may concern :
I've managed to add speech recognition functionality into my app, what I did and what I didn't knew in order to achieve my tasks was following:
1)Downloaded Speech recognition plugin link and added it to my project
2) Downloaded Speech recognition plugin sample link and copy passed all necessary logic and Screen design to my project
3)InOutsystems development tab clicked on my app, opened Distribute tab > Generate Android app. Downloaded app and all worked, since plugin was using native speech to text capabilities of the device.
Hope this info will help someone one day =)
P.S.
I did manage to add this functionality only to the mobile app