Something not working, or an idea for Valise? Email onatcakr@gmail.com and include your iPhone model and iOS version if you can. You'll get a reply within a few days.
No. Valise uses your iCloud account to sync. If you're not signed in to iCloud, your trips are saved only on that iPhone.
Open the trip, tap the share button and choose Invite to trip. Send the link however you like. Your friend opens it, installs Valise if needed, and the trip appears in their list.
Open the trip, tap the share button and choose to remove yourself. The trip disappears from your list; the owner keeps it.
Forecasts appear when the trip is close. For trips further away, Valise uses typical weather for your dates. Weather needs an internet connection.
Suggested items are updated. Anything you added yourself stays, and items that still apply keep their ticks.
English and Turkish. Valise follows your iPhone's language; you can change it in Settings → Valise → Language.