This study investigates the Usability of the podcast service User Interface (UI) of the iOS app Aftonbladet. The method used originates from a heuristic evaluation technique where semi- structured interviews were conducted with users of the podcast service to explore the usability and to find usability problems. The conducted interviews determined that there existed usability problems with the UI and thus, usability heuristics have been violated in the UI.   Nielsen’s Ten Usability Heuristics for User Interface Design and Nielsen’s Severity Ratings for Usability Problems are applied to the interview answers for evaluating the usability of the podcast service UI.   The heuristics that are interpreted as being of critical importance are:   Heuristic 3. User Control and Freedom  Heuristic 4. Consistency and Standards  Heuristic 5. Error Prevention  Heuristic 6. Recognition rather than Recall  Heuristic 7. Flexibility and Efficiency of Use  Heuristic 8. Aesthetic and Minimalist Design  Heuristic 10. Help and Documentation    Three out of the ten heuristics were not of critical importance:    Heuristic 1. Visibility of System Status  Heuristic 2. Match Between System and Real World  Heuristic 9. Help Users Recognize, Recover and Diagnose from Errors