Early access · built by a former physics teacher

Grade in class.
Leave on time.

Point your phone at a student's QR code, tap a score, and the grade is recorded — feedback delivered face to face, while it still matters. Walk the room, grade as you go, and take nothing home.

Try the live demo Sign in

The demo takes two minutes and needs no sign-up. It works best with two screens — one shows a sample class's codes while the other scans them — and it tells you what to do if a phone is all you have. The sample class is made up and is never uploaded to an account. Sign-in is open to invited teachers during early access — ask for an invite.

How it works

Students get a code

Use what they already carry — a school ID barcode or badge — or print a sheet of cards from the app. Any QR code or barcode works; it just has to be unique.

Scan → the name pops up

Point your phone. The student's name appears instantly and unmistakably, so you always know whose grade you're about to record — even mid-stride.

Tap a score — or set one in advance

Tap a quick-score button, or set a score once and stamp it onto a whole row of scans. Export a CSV file your gradebook can import, or connect Google Classroom and send grades straight there.

Built for the middle of class

Everything is designed around one fact: your attention belongs on students, not on a screen.

⚡ One second per grade

Scan, tap, done. Or set one score and stamp it on every scan until you change it. Feedback that's loud enough to see in the corner of your eye — big banners, color, vibration.

🪪 Works with codes students already have

School-ID barcodes, badge QR codes, or printed cards from the app. No student devices, no student accounts, no seating charts to maintain.

📜 Every change is on the record

Every grade change is saved with its time and the device that made it, and nothing is overwritten. Open a student's history to see exactly what changed.

💻 Phone in class, laptop at your desk

The same app runs in your browser for roster setup and exports — real keyboard, real tables, no squinting.

📤 Exports that fit your gradebook

Export a CSV file your gradebook can import. Google Classroom import and grade passback are built in. Clever, ClassLink, and OneRoster are in development.

📐 Rotate-to-grade

Tilt your phone over a student's printed code to pick a score — no buttons to tap. This works when you use GradeInClass in a browser. The Android app you install scans QR codes and barcodes, but can't read these rotation codes yet.

Where the product is today

GradeInClass is in early access. The live demo is fully usable with a sample class that is never uploaded to an account. Signing in backs your classes and grades up to our servers so they survive a lost or wiped phone. Sign-in is open to invited teachers during early access; if your address is refused, email us and we'll add it. What we store and why is in the privacy policy. If your school blocks gradeinclass.com, or has to approve apps before staff can sign in, send your IT department our page for school IT. To pilot GradeInClass in your classroom or district, say hello.

Why this exists

Hi — I'm David Ludlow. I studied applied physics with an emphasis in computer science at BYU, and I've spent my whole career on one obsession: getting rid of tedium — the busywork that keeps smart people from doing the interesting parts of their jobs.

After two years as a software engineer at National Instruments, I became a physics teacher at a low-income high school in Houston. I loved teaching. I was also drowning — and the worst of it was grading. So I cobbled together a hacky code-scanning setup that let me record grades as I walked the room, feeding me a CSV my gradebook could import. I could suddenly grade during class, face to face, while my feedback could still change what a student did next. I stopped taking papers home — everything but the final exam.

Since 2018 I've built math-education software (Graspable Math, GeoGebra). GradeInClass is that Houston hack, rebuilt properly: an app any teacher can pick up, so grading happens in class — and teachers get their evenings back. When teaching is less tedious, more great people stay teachers.

Grade in class. Leave on time.