While you may be thinking this is just another crypto tax app, unlike all the crypto tax apps that currently exist, you do not upload any data to a centralized 3rd party. All your data is stored locally and no data is sent to any 3rd parties. In the desktop(electron) version, The only external requests made are to cryptocompare.com in order to get USD values for calculating gains. In the future hopefully you will be able to just provide a file with the USD rate and no external requests will be needed.