[Android Central Question]

Want my phone and my tablet to have the same information

[B. Diddy]

Welcome to Android Central! Which phone, and which tablet? Do they both have your Google account as the primary account? That should sync all of the same Google information to both devices. For non-Google apps, it'll depend on if those apps sync information to their own server in the cloud, or if the data is only locally saved. If it's only locally saved, you probably won't be able to sync that data across devices.