Client Booking Portal
Also called: member portal, booking app, studio app, member app
Every modern studio platform ships some version of a client portal. The fork in the road is web-portal versus native-app. Native apps in the App Store offer push notifications and the home-screen icon, but they're slow to ship and many studios share an app shell branded by the platform vendor — undercutting the studio's brand.
Web portals with add-to-home-screen support (PWAs) have closed most of the gap. They install with one tap, send push notifications on most modern phones, and update instantly when the studio changes prices or schedules. Crucially, they don't depend on an App Store review or platform vendor's release calendar.
Useful portals do five things well: schedule view, one-tap booking, package/credit status, attendance history, and calendar sync. Everything else (in-app messaging, fitness tracking, content libraries) is usually a feature trap that bloats the experience and rarely gets used.