Speed, stability, and mobile-exclusive features
Stability holds up fine on Android and iOS handsets released in the last three years. Older phones occasionally stutter mid-stream on Live Dealer tables, which remains the one real weak point of the current build.
Android and iOS split the UK smartphone market almost evenly, which is why both shortcuts get equal support. The installed shortcut reuses the same login token as the browser, so switching between a commute and home Wi-Fi never forces a fresh sign-in.