By now, you should have had a good few rounds of feedback with your developer, signing off each millstone or section of the app as it's been built.

Ensure that:

• All open bugs are closed
• Test, test and test your app again (you don't want to have your app waiting for approval only to spot a major bug and have to re-submit again, wasting valuable time).
• Verify that the tracking has been implemented and any other specific requirements are complete.

Depending on your milestone payment structure, ensure that payments have been made to your developer.