This is something I haven't figured how to solve: All my app purchases are made with my gmail account, including those I share with my kids. After adding my account I set Gmail to not sync on their devices. However, this leaves my data accessible to them. They can still access settings and change sync easily or accidentally, and they can still launch Gmail and read/write/delete/sync manually anything under my account. I already warned my kids, and did so in a very stern tone, about the dangers of using my account for anything other than playing and listening to music, but is there a more secure solution? Is it possible to set my google account to require a second password for opening gmail and syncing? Can I restrict access to the Settings app, or at least to the Accounts section (not a full solution, as gmail would still be open to manual sync)? Can I set my gmail to sync only to certain devices and not to others? I don't want to stop sharing my apps with my kids. I just want to prevent unauthorized edits to my gmail data, and perhaps privacy could become an issue in the future, since my kids' tablet can also be used by my ex-wife. This wouldn't be an issue if there was a way to migrate all purchases to a different account (then I could migrate them to a "family account") or if I had created such account back in 2012. But it seems the former won't be possible anytime soon, and the latter requires causality violations to become feasible. Any ideas or suggestions? Thanks!