If you previously canceled your Squid Premium subscription and it has not yet expired, you can restore it by doing the following:
- Open the Google Play Store app
- Tap the three horizontal lines in the upper left corner of the search bar to open the navigation drawer
- Tap Subscriptions
- Tap your Squid Premium subscription (if you don't see it, make sure you have the correct Google account selected in Google Play)
- You should now see an option to restore (or resubscribe)
If your subscription has already expired, you can sign up for a new Squid Premium subscription within the app. The easiest way to do so is to go to the Squid settings and tap Upgrade to Squid Premium.