Hey Product Hunt
I built Travelly after watching someone close to me go through the same thing over and over: they'd plan a trip on a budget that looked fine on paper, then get blindsided once flights, hotels, and everything else actually got booked. There was never a clear answer to "is this actually enough" until it was too late to change course.
That's the problem Travelly solves: it checks your travel budget against real flight and hotel prices not destination averages and builds a day-by-day itinerary that never exceeds what you set.