Opensource is not gurantee anything, you will never know which code is used for actual build. Im using ownr wallet and just fine about closed sources of this app (and closed sources of any other apps as well)
Nah you don't get it, closed sources codes can have back doors to peep on people's Private keys without even knowing since it's closed source, been open source means that it's clean as devs can easily sniff any hidden agenda in the source code if it's fully open and transparent, can't be tampered with without people knowing, this is what open source means