I use several of the Simple Mobile applications which I see have been sold to a commercial organisation. I am not going to get involved in the arguments of the rights and wrongs here, I leave that for others more knowledgeable. However I am concerned about future updates.
I got the apps from F-Droid which I assume will not update them any more if the code changes, but I see that the same apps are also available from Play Store. My question is whether Play Store can update the apps on my phone without my permission?
That’s what the so called free software developers do. Build a user base then sell it. The get the users to give them free feedback on problems etc. The users are free testers rather than recipients of free software
I always take them from F-Droid so maybe your index was simply out of date?
However I wish the F-Droid client could post some message that a fossify replacement of an SimpleMobileTools app is available. However because of the way the Apps share information this should probably happen only after all of them are available… the Gallery being the exception because it doesn’t use data from contacts or calendar.