It's foolish to think open source isn't possible on Android.

1

LineageOS

Arguably the most drastic change. Go to your device's Xda forum page and pick a rom for yourself. Don't be fooled by the number of options, almost all are based on AOSP, LineageOS, or GrapheneOS. If the rom has a different name than these three, then it has further customizations, which can be a great thing, though make sure it's not bloated.

#Mobile OS #Mobile SDK #Roms 248 social mentions

2

GrapheneOS

Arguably the most drastic change. Go to your device's Xda forum page and pick a rom for yourself. Don't be fooled by the number of options, almost all are based on AOSP, LineageOS, or GrapheneOS. If the rom has a different name than these three, then it has further customizations, which can be a great thing, though make sure it's not bloated.

#Mobile OS #Mobile SDK #Roms 388 social mentions

3

XDA-Developers

Arguably the most drastic change. Go to your device's Xda forum page and pick a rom for yourself. Don't be fooled by the number of options, almost all are based on AOSP, LineageOS, or GrapheneOS. If the rom has a different name than these three, then it has further customizations, which can be a great thing, though make sure it's not bloated.

#Forums #App Store #Mobile Apps 117 social mentions

Whatsapp: Jami has come a long way, use it if you have people who'd be interested in an open source P2P Whatsapp alternative that doesn't require any signup or phone number. If not, then use Signal, if that still doesn't work for you, no alternatives. If Whatsapp releases the feature that you can use Whatsapp Web without your phone online, Whatsapp Web To Go will be useful. Try Open In Whatsapp if you need to text people not in your contacts.

#Messaging #Instant Messaging #Group Chat & Notifications 9 social mentions