I didn't know smallbasic...
I use RFO-basic, very powerfull ! Also called "Basic!" very well documented.
You will not found it on play store anymore... because Google doesn't like it. The last release (1.92) is the same that 1.91 but, for been pleased to Google, SMS features have been removed ...
https://bintray.com/rfo-basic/android/RFO-BASIC/v01.91This release is old (2017) and will not updated... But another coder goes on the show with OliBasic !
I use Olibasic XXIV , very stable.
https://gitlab.com/OliBasic/Main/tree/master/OliBasicXXIVFor editing, I use Notepad++
Here, you will found RFO-BASIC! Launcher (PC) (a special version of Notepad++ for RFO-Basic)
http://mougino.free.fr/rfo-basic/For compiling source into APK, I use RFO-BASIC! Quick APK (PC) founded in the same page. But if you don't want to compile, no problem, Olibasic can emulate it.
And for help, there is a very cool forum :
https://www.tapatalk.com/groups/rfobasic/I hope you will be enjoy using it.