It's like babbaco.com, but has Russian specificity. Russian children MUST be able to read, write and count BEFORE coming to the first grade.
UmniBox helps parents to teach them. It contains everything they needs for training - "exercise sheets" for children and instructions for parents.
And of course educational games and toys.
We had 41% answers "Yes, I would subscribe" and 65% answers "I would recommend this service to my friends" at Customer Discovery stage.