Have your bee colonies and the Stock Card always and everywhere at hand, even without an Internet connection. Work offline on your colonies and let synchronize at the next opportunity, the data simply, it does not matter whether you put on new races or stock cards or editing existing ones.
To use the ImkerApp an account of iBeekeeper is required. This can be free in the app or on https://webapp.iBeekeeper.de, the beekeeper software iBeekeeper created.
Tip: You can change to https://webapp.iBeekeeper.de and so adapt the Beekeeper program according to your ideas, the forms for the bees and the Stock Card.