There are four Dapps which build on Ethereum blockchain. I deployed the smart contract in all test network - Ropsten, Rinkeby and Kovan.
Don't install anything. just direcctly open index.html by Chrome or ther browsers.
Please install [MetaMast] (https://metamask.io/) first
This a simple smart contract. -You will use ether to buy Singapore property with MetaMask. -You will see a dapp which associates an Ethereum address with property.
Sell and buy Secret
How to buy and sell with MetaMask.
voting using Ethere.
payments using Ether, the currency of the Ethereum blockchain platform. Concept of tokens and its usage.