The FullDiary app is on Google Play for Android phones: search for FullDiary, or follow the Google Play button at the foot of any page on full-diary.co.uk. The iPhone app is with Apple and comes to the App Store next.
It is the same account and the same diary as the website. Sign in with the email and password you use on full-diary.co.uk; if you signed up with Google, set a password first under Settings, Your account on the website.
In the app you see the day and the week, add and move bookings, read and answer messages, look up customers, sell packages, and get a notification on your phone the moment a booking lands. Your staff can use it too, each with their own login.
The app is free to download and works on every plan. Pro can be bought on the website or inside the app.