Based on the type of payment you initially used, your subscription could be upgraded. For App Store and Play Store please see below. If you used a credit card on our webpage, the remaining unused amount of the current month (pro-rata) will be refunded and you'll be charged for a full upgraded subscription starting on the day of the upgrade.
For Apple (iTunes and App Store) subscriptions check this guide: https://support.apple.com/en-us/HT202039
For Google (Play Store) subscriptions, it's not possible to change your subscription!
In case you want to upgrade to an annual or lifetime (Craving To Quit® only) subscription, please go to https://app.claritasmind.com/ then select the correct program and login with your email and password. In case you want to upgrade to a 6-months subscription, please submit a request to our support team (check top menu).
From the main menu, click Subscription then click Upgrade and confirm the upgrade (see screenshot below).