If you don't have Play Store, you can download Titanium Backup from here : https://bit.ly/2BOJEUE

Titanium Backup Reviews archive

Review – AndroidPit

"A MUST HAVE APP for any root user"

Review – Droid News

Another review in Russian

Review – Dima Kudryavtsev @ Android For Me

Very detailed review in Russian

Review – komugi.net

Very detailed review in Japanese

Review – Android-Software.fr

"Un puissant outil"

Review – Smartphone France

"Une application que vous vous devez de posséder"

Review – brutzelstube.de

"Backup mit Rootrechten"

Review – TamsPalm Deutschland

"Mit Netz und doppeltem Boden"

Review – nodch.de

"Android inklusive aller Einstellungen Sichern/Wiederherstellen"

Review – mobiflip.de

"Titanium ist für mich die beste (Root) Android-App im Market."