People use different kinds of trackers. It just depends on your personal preference. Try these out, then go for the one you prefer the most:

Blockfolio app: Android PlayStore | Apple iTunes
AltPocket: https://altpocket.io
CoinTracking: https://cointracking.info
CryptoCompare: https://www.cryptocompare.com/portfolio/
CryptoFolio: https://cryptfolio.com