Unfortunately, there is a very low probability of the mismatch until we have effectively seen every device. As our linking service expands, that percentage gets lower and lower. In our experience, the user experience and analytics insight benefit far outweighs the consequence of a mismatch because they are so rare. We encourage our developers not to bundle sensitive data into the links if they use this base case.

If a developer does want 100% match, we have a separate option that can be used with a slightly degraded user experience which pops the browser open really quickly to check the cookie, then returning to the app with the URI scheme.