I built Nomad Tracker because I hated updating spreadsheets to monitor my tax residency and visa limits (like the Schengen 90/180 rule). It runs on auto-pilot using background GPS. The best part? It can scan your photo library metadata to instantly reconstruct your past travel history. It is 100% privacy-first. Your location data never leaves your phone. I am a solo dev and would love your feedback! 🫶