Tester said the app is dense and wanted a wizard. Example trip: London to Rio de Janeiro, Day 2 of 6, landed. Tap inside each phone.
Option A. Intro cards
Three swipe cards on first open, then straight to setup.
Trade-off: a wall before the app, but short and skippable.
Option B. Coach marks
Four spotlights on the real Home, one at a time.
Trade-off: shows the real screen, but needs a trip on screen first.
Option C. How to use page
A guide row in Settings, a "?" on Home, and a one line first-run banner.
Trade-off: least pushy, but people may never open it.
A + B + C Recommended
Cards first, then coach marks, then C stays available. Step through.
Trade-off: most work to build, best coverage. Keep every step skippable.
ON-3. After an account reset
Reset account clears the "seen" flag, so the intro shows again.
Trade-off: reset members see it twice. That is intended.