Make the play button obvious
On a phone, the primary listening action should be easy to find. Use a large enough control, a clear label or familiar icon, and enough spacing around it to avoid accidental taps.
Design around one-handed use
Listeners may start a stream while walking, driving as a passenger, or multitasking. Keep critical controls near comfortable touch areas and avoid tiny links that require precision.
Respect browser autoplay rules
Modern browsers restrict unsolicited audio playback. Design the station so a user can tap Play and understand what happens. If autoplay is available in a particular installed PWA context, it should still fail gracefully when browser policy prevents it.
Handle weak connections
Mobile users move between strong and weak networks. A player should show a useful state when a stream is unavailable rather than appearing frozen. Test reconnect behavior and consider whether the stream bitrate is appropriate for the audience.
Use readable typography
Text should remain readable without zooming. Strong contrast, sensible line length, and clear headings help both mobile users and visitors with accessibility needs.
Make the station installable
A PWA can provide an app-like entry point when the browser supports installation. Use an accurate name, icon, start URL, theme colors, and orientation. The installed experience should open the correct station rather than sending a listener to an unrelated page.
Browse the rest of the MPT CAST resources for practical information about internet radio, mobile listening, station branding, promotion, audio quality, SEO, and stream troubleshooting.