changelly - Exchange alternative cryptocurrencies.
Exodus.io - All-in-one app to secure, manage and exchange blockchain assets.
ShapeShift - Buy cryptocurrency instantly without the need of an account.
Jaxx - Jaxx.io is a blockchain wallet available as desktop software, a mobile app, or as a Chrome extension
CoinSwitch - First cryptocurrency and altcoin exchange aggregator.
Toshi - A browser for the Ethereum network