Hey Product Hunt 👋 I'm the solo maker behind NomadSync. The whole thing started because I kept doing visa math in a spreadsheet and still got it wrong. The Schengen 90/180 rule is a rolling window. Every day you've spent in the last 180 days counts against you, and one miscalculation can mean an overstay ban or accidentally tripping tax residency in a country you were just passing through. So I built the tool I wished existed: 🛂 Schengen 90/180 tracker. Real rolling-window math, not a dumb day counter. See exactly how many days you have left and when they free up. 📅 Trip calendar + world map. Log where you've been, see it all at a glance. 🧾 Tax residency alerts. Warns you before you cross the 183-day line in any country. ✈️ Visa guide. Entry rules by passport, so you know before you book. 🧩 Chrome extension (coming). Auto-adds trips from your booking confirmations. It's free to start (no credit card). I'd genuinely love your feedback: what's the most annoying part of managing visas/as a nomad? That's what I'm building next. 🙏

NomadSync

Visa & tax day-counting on autopilot for nomads

Visa & tax day-counting on autopilot for nomads