I would advise you in principle also to cointracking.info But if you trade a lot you will soon reach the limits of the free version. This version only allows you to manage 200 transactions (including deposits/withdrawals).

So you will need a pro-account relatively quickly (allows up to 3500 transactions). This will cost you about 10$ per month. I' say it is definitely worth it, especially if you trade a lot and have to do your tax return at some point: https://cointracking.info/pro.php