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Install & Use

Install on your iPhone (iOS 26)

  1. Open the planner in Safari (it's what creates a true standalone app on iOS).
  2. Tap the Share button, then Add to Home Screen. Leave the "Open as Web App" toggle on (it's the default).
  3. Tap Add. Periplus now has its own icon and opens full-screen.

Make offline durable

Open the app once while you have signal so the service worker can cache everything, and install it to the Home Screen (not just a bookmark). iOS keeps an installed web app's data instead of clearing it after a week of non-use.

Install on Android

Chrome shows an Install app prompt, or use the ⋮ menu → Add to Home screen.

Use it offline

Once cached, the entire itinerary (food, outdoor, the week-by-week plan, and your checklists) works with no connection. Directions links hand off to your maps app, which manages its own offline maps.

Pick a theme

The top-bar toggle cycles Auto (match your phone), Light, and Dark. Your choice is saved on the device.