This is an iOS demo application for calculating tips. Tip Calculator walkthrough is at http://vimeo.com/74764846

Time spent: 5 hours spent in total

Completed user stories:

• RequiredRequired: User can calculate tips given the bill amount and tip percentage
• RequiredRequired: User can set the default tip percentage
• RequiredOptional: Bill amount is saved across app restarts and cleared out after 10 minutes
• RequiredOptional: Tip/Total amount is formatted with user locale

Walkthrough of all user stories:

GIF created with LiceCap.