I’m note a programmer. I Don’t Understand Codes. How do I Know If An Open Source Application is not Stealing My Data Or Passwords? Google play store is scanning apps. It says it blocks spyware. Unfortunately, we know that it was not very successful. So, can we trust open source software? Can’t someone integrate their own virus just because the code is open?
To make a common clarification: free as in “free speech”, not (necessarily) free as in “free beer”.
Just because the software costs nothing, doesn’t mean that it’s not hiding something. In fact, the opposite is often true.
I’m sure you know that. I’m just clarifying for OP, who isn’te a programmer.