Bitsnapp is a free mobile app that helps you manage your cryptocurrencies and sync your holdings via wallet addresses and multi-exchange APIs, besides letting you access market information quickly. The app supports a wide variety of cryptocurrencies, exchanges and wallet addresses. You can also track wallet addresses automatically and manually add transactions. Some of the exchanges supported are Bittrex, Bitstamp, Kraken, HitBTC, Liqui, Bitbay, etc. Similarly, the wallet addresses supported are Bitcoin, Ethereum, EOS, Qtum, Golem, Augur, and the likes.