TL;DR: we collect nothing about your calculations. Every calculator on ilovecalc runs entirely in your browser. The numbers you type — loan amounts, salaries, balances — are never sent to a server. There is no account, no login, and no upload.
We may use privacy-respecting, aggregate analytics (page views only) to understand which calculators are useful. We do not sell data, and we do not run remarketing pixels on your inputs.
If ads are enabled, they are served by third parties subject to their own policies, and are never shown the contents of your calculations.