If you signed up for Aaptiv through your iTunes account:
On your iPhone,
1. Go to Settings > [your name] > iTunes & App Store.
2. Tap your Apple ID at the top of the screen.
3. Tap View Apple ID. You might need to authenticate your Apple ID.
4. Tap Subscriptions > Aaptiv
5. Under Options, tap the subscription plan you want.
* Note: if you do not see Aaptiv in your list of subscriptions, this means you signed up through the website and you must contact firstname.lastname@example.org to change your subscription.
If you signed up for Aaptiv through the Google Play Store, cancel your current subscription and sign up for a new plan.
On your Android phone,
1. Open the Google Play Store.
2. Tap Menu > Subscriptions.
3. Tap Aaptiv > Cancel.
4. Purchase a new plan of your choice.