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Vouch

Find an empty classroom on campus, and know how long it's yours. Powered by students, for students - verified in real time.

The Problem

The campus isn't full.
It's just invisible.

It's 2pm. Your class just ended and the next one isn't until four, so you head to the library with two hours you could actually use. Every seat is taken. The group rooms were booked days ago. You wait a bit, decide nobody's leaving, and start walking - second floor, third floor, past door after door, some locked, some dark, none obviously yours to walk into. Twenty minutes later you're sitting on a stairwell step with the laptop on your knees, and by now you're too tired to start anything real.

Here's the part nobody tells you: while you were looking, a dozen classrooms around you were empty and stayed empty the whole time. Not booked, not locked, not in use. You had no way of knowing, so you competed for a seat directly underneath an abundance of space.

A university library at full capacity, every seat taken.
Three Barriers

Invisibility. Duration.
Permission.

Here's why: the only way to check if a room is free is to walk up and open the door yourself. That information already exists - it's sitting in the timetable right now - nobody ever pointed it at you. And even if you did find an empty one, you still wouldn't know whether you had ten minutes before a class walked in or the whole afternoon, so you wouldn't unpack, wouldn't really start, and you'd probably be gone before you needed to be. Then there's the room itself - empty, unlocked, right in front of you - and some part of you still hesitates, because nobody has ever told you whether you're allowed to be in there. That last one isn't a lack of information, it's a lack of permission - and it's the one thing no app has bothered to fix.

And this isn't a one-off, or just a University of Wollongong in Dubai thing. Four other universities have run into the exact same wall and built their own fix from scratch - which is usually a sign the problem is real rather than imagined. So why isn't this solved already? Turns out there's research on exactly this: on how empty the average classroom actually is, and on why the booking systems that are supposed to track it don't.

Classroom utilisation across institutions

Every published figure leaves at least 40% of classroom hours unused.
Read more

Drawn as deviation from the average of the reported figures rather than from zero, because the spread is the point - a zero baseline flattens six near-identical bars into a wall. The lowest estimates come from a multi-institution review putting typical utilisation at 20-40%; Stanford's survey of 250+ rooms found 44%; Iowa published 46.83% across all classrooms and 53.12% for university classrooms in Fall 2024; and the most optimistic figure, a US pre-2020 average, still tops out around 60%. Sources: arXiv 2111.04085; Stanford; University of Iowa, Fall 2024; Gordian.

The cost of having nowhere quiet

72% of students report being affected by a lack of access to a quiet space to study.
Read more

Asked whether they had been affected by a lack of access to a quiet space to study, 22% of students reported being severely impacted and 24% moderately impacted, with the remainder affected without a stated severity - which is how the source grades it, and so how it is labelled here rather than being folded into the other two. Source: Office for Students poll of 1,416 students, reported by Times Higher Education.

The booking systems that are supposed to answer this do not reflect reality either. An 18-month occupancy study at the University of Southampton found the utilisation recorded by the booking system diverged from the monitored rate by anywhere from 1% to 20%. You can also read the gap straight out of university policy: Auburn releases an unclaimed room after five minutes, and Arizona, UW-Madison, Indiana and Camosun all forfeit a reservation after fifteen. Universities do not independently invent identical rules for a problem that does not exist - the near-universal fifteen-minute rule is documentary evidence that "booked but empty" is endemic. Note what those same policies concede: when rooms are not in use or reserved, they are first come, first served. The space is already available. There is simply no way to see it.

An empty classroom, lights on and every seat free.
The Solution

Meanwhile, three floors up,
this room is empty.

Vouch starts with the timetable everyone already has, so it knows which rooms are free from the very first day - no waiting around for people to start using it. But timetables go out of date the moment reality doesn't cooperate, so it's also powered by students, for students: anyone actually sitting in a room can vote that it's free, claim it, or flag it as taken, and that vote is what keeps the map honest when the schedule doesn't match what's really happening. So instead of a vague "available," every room just tells you the truth - free for the next 47 minutes, say - because the question you're actually asking isn't "is this room empty." It's "is it worth unpacking my bag for."

Why It Matters

Not a booking system.
A way of seeing what's already there.

Thursday Week
CS-204 lecture
B-118 · free 11:30 - 13:00

dragempty time to report a room

Drag down the empty hours and the room is reported free - no form, no request.
B-118 · second floor Walk in
Free for
1 hr 30 min
Then
Nothing else booked
Seats
40
Walk
about 3 min
Student reports 14 reports

57% say empty · confirmed 9 minutes ago

Anyone sitting in it answers the same two questions, and the confidence read ages from there.

The university already makes a timetable for every room. Vouch reads the gaps in it and turns them into rooms you can walk into, so most of the time you're not creating anything - you're joining something the schedule already said was free. Book a seat and others can see you're going. Spot an empty room that isn't listed? Drag down the hours and it's on the map. No form, no request, nobody to approve it.

Every room is verified by the students in it. Walking past one, a single tap says it's still empty or it's taken - so a room reads free or occupied because the people there said so. Things change, a class runs over, someone settles in, and you update it as you go. Every card shows how fresh its answer is, and claims expire on their own so nobody squats. No accounts, no points, nothing to game. You're in and out in eleven seconds.

Nothing here gets built. It only gets seen - all of it was already there, and Vouch just points students at it.

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