CryptoKitties - Breed and collect adorable creatures using Ethereum
Crypto Price Widget - Tracks your favorite cryptocurrencies
MetaMask.io - A crypto wallet & gateway to blockchain apps
Lionshare - Simple cryptocurrency price & portfolio monitor for macOS
CryptoFighters - Collect, train and battle with unique fighters with Ethereum
Cryptonose - Cryptonose is a desktop application tracking significant price changes and giving an alerts for crypto markets in real-time. It's helpful if you are a daily trader and want to know instantly if something interesting is happening on your exchange.