This guide sets up your Android phone so the web can only be opened through Peace of Mind, and so only a person you trust can change it later. Follow the steps in order. Most people finish in about twenty minutes.
Do every step in order. Your partner will need their own phone for a few of the steps, so have them nearby.
Before you begin, install every app you will want to keep: your bank app, your work sign in app, maps, rides, music, and anything else you use. After this setup, adding a new app will need your partner to approve it, so put them all on the phone now.
For Twitter, Instagram, Reddit, and anything like them, open them as websites inside Peace of Mind instead of using their own apps. Then remove those apps: press and hold the app icon, then tap Uninstall. Now that content goes through the filter.
On your partner's phone, have them open the Google Family Link app. If they do not have it, they can get it free from the Play Store. In Family Link, tap the plus sign to add a family member, then tap Create account for a child. When it asks for a birthday, set it so the account is for a child under 13 years old. Your partner writes down the email address and password on paper.
On your phone, open the Settings app. Tap Google. Tap the name at the top of the screen, then Add another account. Sign in with the email and password your partner just made. Follow the prompts on both phones to finish linking your phone to your partner as the parent.
Back in Family Link on your partner's phone, tap Controls, then App limits. Find Chrome and set it to Blocked. Do the same for every other browser you see in the list: Firefox, Brave, Opera, Edge, Samsung Internet, and DuckDuckGo. This leaves Peace of Mind as the way to open the web.
In Family Link, tap Controls, then Google Play, then Purchase and download approvals. Turn on approval for All content. Now nothing new can be installed unless your partner says yes.
On your phone, open Settings and tap the search bar at the top. Type the words developer options. If a result appears, open it and switch it to Off. If nothing appears, there is nothing to change and you can move on.
If you have a Samsung phone: open Settings, find Secure Folder, and turn it off. If you have a Xiaomi phone: open Settings, find Dual Apps and Second Space, and turn both off. If you have a OnePlus phone: open Settings, find App Cloner, and turn it off. If your phone does not have these, skip this step.
The family account password is the key to everything you just set up. It must be long and random, at least twenty characters, so that nobody could guess it or remember it. Your partner types a new password like this now, on their own phone, in the family account settings.
Then seal it. Go to a free password vault such as lockbox.pluckeye.net. Your partner saves the new password there and chooses a waiting time. From then on, if the password is ever asked for back, the vault makes you wait the full time you chose before it shows it. That waiting time outlasts a weak moment, but still lets you get in when you truly need to. Your partner keeps this vault. Tear up the paper.
Your phone is now locked down. The web opens only through Peace of Mind, and only your partner can change it.
If you ever truly need to add an app or adjust a setting, ask your partner. They approve the app from Family Link on their own phone in a few seconds. If a change needs the account password, your partner asks the vault for it, waits the time they chose, makes the one change, then seals the password again.