Help with Beauty Travel Kit

No. There is no account and no sign-in, and the app has no permission to use the internet. Everything works offline, including PDF export.

For each product it multiplies the amount per use by the uses per day and the days of the trip (nights plus one), adjusts for the type of trip, the traveller's hair length and how much they use, adds a 15% reserve and rounds up to the next 5 ml. It then suggests the smallest common travel container that holds it. In the Amounts tab you can change the amount per use and the uses per day for any product.

You choose: the 100 ml rule (containers up to 100 ml, 1 litre in total), the 2 litre rule used by some airports with newer scanners, or your own limits. The check is a packing aid, not official travel advice. Security rules differ between airports and can change, so always confirm them with your airport and airline before you fly.

The liquids check highlights it and offers two fixes: decant it into allowed containers, or move it to a checked bag. Both can be undone.

Yes. Add travellers under More → Travellers and give each of them a wash bag. A trip can also have a shared bag, and items can be moved between bags.

It does not need it. A photo for an item is chosen with the Android photo picker, which gives the app only the picture you select. The app keeps its own copy and cannot see the rest of your gallery.

No. Trips, bags and photos are stored only on your phone, there is no cloud sync and Android cloud backup is switched off for the app. Uninstalling the app removes them. To keep a copy of a list, export it as a PDF or as text.

Open the More tab and choose Erase all data. It removes all trips, bags, kits, travellers and photos. Uninstalling the app does the same.

No. The app sends no notifications. Upcoming trips and their countdowns are shown on the home screen when you open it.