Google Play Store showing Open button instead of Update button

Question

I updated my app to the Google Play Store last night. Before the update, my App version was 2.3. There was some problem in version 2.4 so after another 2-3 hour, I updated

Answer 1

Go to "Settings" within android device then on one of the tabs selections it should say "All" press that then look for the "Google play store".

Once you press that you can check what version play store your phone is currently running to make sure if it's running version 2.3 or 2.5.