1/ Over 50% of our users are international for our free tracking service, though our tax product is US only right now 2/ Coinbase is #1 in terms of exchanges, however local wallets (e.g. ETH wallets) are the largest overall 3/ We do not sell user data to any third parties. We do use some analytics products such as mixpanel, Heap, Google Analytics, etc. but we are not giving user/trade information to any third parties (see our privacy policy at www.cointracker.io/privacy) 4/ Many things, but one that stands out is that most people in the crypto space (even huge funds/companies with hundreds of millions of assets under management) use a spreadsheet to keep track of their crypto (!!) 5/ Yes! We are not (yet) a registered investment advisor and therefore do not provide investment advice (see www.cointracker.io/disclosure for more details)