If you decide to cancel your PREMIUM Membership, benefits and services will remain accessible until the end of the free trial or the current month's or year's payment cycle.
You will need to cancel at least 24 hours before the membership period or then-current subscription period ends.
If you want to renew a canceled membership, you will be able to do so after the end of your free trial or billing cycle.
Please follow the steps below to cancel your Premium membership:
IPhone:
1. Open the Settings app.
2. Tap your name.
3. Tap Subscriptions.
4. Tap the HidrateSpark Subscription.
5. Tap Cancel Subscription. You might need to scroll down to find the Cancel Subscription button. If there is no Cancel button or you see an expiration message in red text, the subscription is already canceled.
And here's an Apple help article on requesting a refund for in-app purchase: https://support.apple.com/en-us/HT202039
Android:
1. On your Android device, go to your Subscriptions in Google Play.
2. Select the Subscription you want to cancel.
3. Tap Cancel Subscription.
4. Follow the instructions.
And here's a Google help article on requesting a refund for in-app purchase: https://support.google.com/googleplay/answer/7018481