We work based on the hourly rate:
User Experience (UX):
5 hours of website testing + User eXperience report.
Analysis of your website/service against 3 competitors. Up to 1 week of testing + competition report.
Usability testing with 5 users (1 hour/user) + report.
Other services: mockups of apps and websites, website testing and analysis based on particular goals, analysis of Google Analytics.