Please know that subscriptions are managed by your respective app stores and not the app developers. Below are the steps to unsubscribe across different platforms:
iOS - Method 1
- Open the Settings app
 - Tap your Apple ID “card” with your name and profile image at the top of the menu.
 - Press Subscriptions.
 - You’ll see a list of all your active and expired subscriptions.
 
iOS - Method 2
- Open the App Store app.
 - Click on your profile icon in the upper right-hand corner.
 - Press Subscriptions.
 - You’ll see a list of all your active and expired subscriptions.
 
Android
- Open the Google Play app .
 - At the top right, tap the profile icon.
 - Tap Payments & subscriptions Subscriptions.
 - Select the subscription you want to cancel.
 - Tap Cancel subscription.
 - Follow the instructions
 
Partial refunds aren't available. Your subscription runs month-to-month starting on the day of your purchase. Cancel at least 24 hours before the renewal date to avoid being charged for the next month.