Titanium Backup - Titanium Backup is a very old backup app that has been around since the early days of Android. In fact, it's one of the few apps that covers all versions from 1. Read more about Titanium Backup.
3uTools - 3uTools is a most efficient iOS file and data management tool for Apple users.
Super Backup & Restore - Super Backup & Restore app allows users to backup all their stuff such as pictures, videos, apps, text messages, contacts, call history, and calendar data, etc.
Blackra1n - (This is an OUTDATED jailbreaking method.)
SMS Backup+ - Backup Android SMS, MMS and call log to Gmail / Gcal / IMAP - jberkel/sms-backup-plus
checkra1n - Jailbreak for iPhone 5s through iPhone X, iOS 12.0 and up