DaysAbroad uses GPS to automatically count how many days you spend in each country. Built for people who travel frequently and need to track days for tax residency (183-day rule), Schengen 90/180 limits, or visa compliance.
It runs in the background on your iPhone, no manual input needed. You get a per-country, per-year breakdown, a Schengen calculator, trip history and more...
After checking that one of my passwords was leaked on a data breach, I decided to build a website where people can check if their passwords are available online. By showing the beginning and end of the password guarantees that only the owner will know which is the password was leaked. My goal with this is to increase security awareness.