The Nika Database Service Contract is primarily built as an example but it can serve as a private database for many features; online games, agricultural data, insurance records, weather reports and mostly anything not hiding sensitive data. Although the contract is 100% private on the blockchain and does not expose information, it still is not secure from outside elements outside the blockchain, such as someone taking your ethereum wallet.
Details are on the site -
https://nikacoin.github.io/hq/As well as the link to the telegram for the selfdrop.
It costs only one Nika per slot on the database. We plan on possibly marketing this to insurance agencies or a form of this and we're working on the front-end for this contract currently.
