Sign in
Every kindergarten has its own address. You sign in there, not here.
Find the invitation email from the kindergarten. The link in it takes you to your own address.
The address looks like name.onlineovi.hu, where “name” is the kindergarten’s short name.
Sign in there with your email and password. Forgot your password? You can ask for a new one on the same page.
No invitation? Ask the kindergarten. You cannot open an account yourself, because the kindergarten decides who may see the children’s data.