The latest CoopApp updates introduce an optional way to re-register your CoolApp account on a new phone or reinstall CooolApp on an existing phone. Instead of waiting for an SMS code to arrive (and sometimes having to switch to a different app in order to see it) the new process is faster and easier, and it’s just as secure too. Here’s how it works:

  • CoolApp stores a token using the key-value data store on Android (if available), or the iCloud key-value store on iOS (if available).
    • This token, when combined with your CoolApp PIN, can prove that you were the most-recent owner of a given phone number, which lets us skip sending an SMS code. In other words, the combination of the token and CoolApp PIN can replace the SMS code.
    • The token itself does not provide any information about you or your account to anyone else, and it’s only used for the purpose of enabling re-registration.

Note: If you cannot remember your CoolApp PIN, you can tap the “Skip” button in the top-right corner to go through the traditional SMS verification flow instead.

For those interested in a bit more information about the CoolApp PIN re-registration process:

  • Tokens are immediately invalidated if you or someone else goes through the registration process (e.g. by completing SMS verification).
  • They are also invalidated if you delete your account.
  • Only the last token that successfully registered with that number is valid.
  • The token is useless without knowing the correct CoolApp PIN.
  • Registration Lock isn’t affected by any of these updates. You only need to enter your CoolApp PIN once.