A short checklist that saves time and budget before you speak to a development team.
A clear brief is the biggest factor in a smooth app project.
First, describe the problem the app solves and who will use it. Second, list the three to five features that must exist in version one. Third, gather examples of apps you like, so designers understand your taste. Fourth, decide where your data will live and who manages it. Finally, set a realistic budget and launch date.
With these five points ready, your development team can estimate accurately and avoid surprises later.