If the app consistently crashes, make sure that you’re using the latest version of Tinder.
If you’re currently using the latest version, try reinstalling the app. As long as you don’t delete your account, this won’t delete your matches and messages.
Note: Tinder only supports iOS 9.0 and up / Android 4.4 and up. If you haven't updated the operating system (OS) on your phone, be sure to download the latest version.