The current app version is 4.26 . If you use the old version 4.15 otg will work. .apk is an Android app extension.
There is an app someone made in this forum a couple threads down that is baised on 4.15 and works great.
Awesome !Well I found it once I got to a computer and was able to get 4.15 installed on my Google Pixel (not sure why iPhones were being discussed on this thread). Hooked everything up and BAM! WORKS!
Thank you for your time, patience and insight. I appreciate it.