Add the following features to an iPhone app to determine weight during pregnancy.
- Add a settings page using the same design as the app.
- Only setting is a toggle for Imperial/Metric
- Whenever a screen refreshes it needs to switch the data based on the settings
- Settings are saved for user and when app starts it uses the saved setting (Imperial/Metric)
- iphone 4, 5 and iPad support
- In addition to the settings, save all data entered on main screen for next app load