Open Snapchat
Tap your profile icon
Tap the Settings gear icon
Tap Snapchat+ or Snapchat Plus
Tap Manage Subscription
Tap Cancel Subscription
Follow the on-screen prompts to confirm
If you subscribed through the App Store
Open Settings on your iPhone
Tap your Apple ID name
Tap Subscriptions
Tap Snapchat
Tap Cancel Subscription
If you subscribed through Google Play
Open the Google Play Store
Tap your profile icon
Tap Payments and subscriptions
Tap Subscriptions
Tap Snapchat
Tap Cancel subscription