Redesign Taxi App

Project info


Type: Semester project - Execution time 2 months
Course: Application Design - Rebecca Schellhorn
Faculty: HfG Schwäbisch Gmünd
Year: 2020
Niko Mang - Interaction Design
Marla Wagner - Interaction Design
Luzie Funk - Interaction Design

In the course Application Design the challenge was to redesign a smartphone application. The goal of the course was to apply basic user-centered methods, iterative product development, prototyping and design in the mobile usage context. We chose the local taxi app 50/50-Taxi. According to the user-centered design approach, we understood and defined the user and analyzed his needs depending on the context. By reorganizing the information structure, we optimized user flows and added user-relevant functions. In this way, a coherent and function-oriented interaction and visual design was developed. Furthermore, product hypotheses were validated and iterated by constant user testing. Finally, a new user experience emerged.

Final concept film

About the 50/50 app

For more than 16 years, the “50/50-Taxi” has been driving young adults home safely late at night and for half the price. The first 50/50-Taxi app of the Ostalbkreis district was developed in April 2015. In the app, people need to register and and install an electronic authorization card on their smartphone. When they get into the taxi, they show the card, activate the app and scan the QR code of the taxi’s order number with their smartphone.

Final screens

Book a taxi

Share your ride

Join a ride via the invitation link

Our added features

  • Possibility to share a ride with friends via the invitation link or QR-Code.
  • Share a ride with the public.
  • Join available rides.
  • Ride Manager / Dashboard.
  • Rate a ride and see the ratings of available rides.
  • Schedule a ride.
  • Pay online.
  • Unlimited access to the 50/50-Taxi.

My role in this team

Our team consisted of three interaction designers. My role was to conduct user research and to accomplish interactive prototyping with “Protopie”. Both tasks were central to the appearence of the final experience.

Design process

  1. Screenflow analysis
  2. User journey mapping
  3. User interview and inquiries.
  4. Competitor analysis
  5. Analyze & define the context of use and the personas
  6. Kano methode
  7. App architecture
  8. Design board methode
  9. Low-fi prototype
  10. Details

Organizing the work with a work breakdown structure


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First tryouts in Figma

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Final screens

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