Current nexus 7 tablert is on last legs, bought a samsung tablet (see above), can't find info to enable existing tabs to be transferred. both android based
Generally the apps are written specific to each device and usually you have to download to your new device from play store. If you have an account, it should recognise your email address and remember your details...
If you use the same Gmail account, then your apps should Restore (it prompts you to restore during the initial setup). If you use the same Gmail, you can also go to the Playstore, select the the line bars at top left, select My Apps, slide over to All to view your list of all your apps and reinstall from there.