Whatsapp, absolutely. Every single night it does a forced backup of everything that I do not want and hangs for about 10 minutes. And if it fails for reasons s

Whatsapp, absolutely. Every single night it does a forced backup of everything that I do not want and hangs for about 10 minutes. And if it fails for reasons such as storage getting full, it gets corrupted and then it's half an hour until it restores an old backup, losing the day's messages. And it also stores a week of backups, so that's 7x of the size which on many phones is untenable. And this can't be turned off! I hate it with a passion but literally everyone I know is on it. There's even no way to hide a conversation from view without blocking it forever. Awful.