If you're interested in downgrading from Tinder Gold to Tinder Plus, please note that this process will differ on iOS and Android.
If you subscribed using your Apple ID, Open your device's Settings > [your name] > iTunes & App Store > tap your Apple ID > Subscriptions > Tinder.
Changes to your subscription will occur once your Tinder Gold subscription expires. You will be charged at your new rate at this time. For more details about the billing process, please refer to Apple Support.
If you subscribed using your Google Play Store account, please note that Google Play does not support downgrading from Tinder Gold to Tinder Plus.
If you have an existing Tinder Gold subscription, you may choose to cancel this subscription, wait for the subscription to expire, and then subscribe to Tinder Plus in the app.