One organization, one bill
Create an organization, invite students and tutors by link, and cover every Pro seat under a single subscription instead of chasing individual sign-ups.
Free for students. One bill for a whole roster.
Study, and
Study, and
every mistake marked.
errorboard runs quietly in the background while you study and catches mistakes the moment you make them, keeping an automatic error log for every topic — no spreadsheet, no copying questions out by hand. Free to start as a student. Tutoring organizations can run the same engine across a whole roster: one dashboard, one bill, per-student progress reports.
New: practice questions tuned to your exact course — HSC, VCE, SAT, A-Levels, UCAT & VIC Selective. Running a tutoring centre? See errorboard for organizations.
built for tutoring organizations
One roster. Every student's error log. One bill.
01
02
Per-student progress reports
Drill into any student's log to see what they got wrong, when, and whether the mistake keeps recurring, before it shows up in a test.
03
Seats follow your roster
Billing tracks your active member count automatically. Add a student, the seat count updates. Remove one, it does too.
04
Export to CSV
Pull any student's full mistake history as a spreadsheet for parent updates, planning meetings, or your own records.
the loop
It works while you do.
01
Watch
You pick the app to study in. errorboard only ever looks at that window on the monitor you chose.
02
Detect
A vision model reads the frame and spots the slip the moment you write it.
03
Capture
It takes a single screenshot of just that window. Nothing else on your screen is touched.
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Log
The screenshot lands in that subject's error log with a one-line note on what went wrong and how to fix it.
Calculus_errors.docx
Calculus error log
auto-captured. review before your next session
2026-06-14 · 22:14:06 · confidence 88%
Sign slip when dividing
Correct approach. Minus 3 minus 5 is minus 8, so 2x is minus 8 and x is minus 4. Recheck the subtraction step.
2026-06-14 · 22:31:40 · confidence 91%
Dropped a negative when factoring
Correct approach. (x minus 3)(x plus 2), not (x plus 3)(x minus 2). Check the sign of the constant term.
quiet by design
It sees less than you would think. That is on purpose.
01
Only the app you allow
Capture is locked to an allow list you set, like OneNote, your browser or a PDF reader. Switch to email or a chat and errorboard goes dark instantly.
02
Only the monitor you pick
Two screens? Point it at one or both. The window has to be focused and on a watched display before a single pixel is read.
03
Stays on your machine
Logs are plain Word files in your Documents folder. Frames go to the cloud only to detect mistakes and are never stored.
three ways it marks
However you study, it catches the slip.
01
Standard
Flags any mistake already visible on screen, like a wrong answer, a flawed line of working or a response marked incorrect.
02
Question bank
On graded banks like Medify it reads the revealed answer and logs the ones you got wrong. The right answer sits beside yours.
03
Solve
No answer key? It solves the problem itself and flags where your answer disagrees. Built for maths, physics and past papers.
the whole workflow
From one slip to a study system.
01
Capture anywhere
Watch an app on the desktop, snap a photo of your working in the web studio, or write by hand in the iPad notebook with live marking. One error log, every device.
02
Improvement plans
Once a few mistakes are logged, the AI sorts them into categories, finds the recurring weak spots, and writes an ordered, step-by-step plan aimed at the goal you set.
03
Quiz bot on Discord
Connect Discord and the bot DMs you fresh questions built from the mistakes you logged, once a day, or on demand with /quiz. Feeling competitive? /duel a friend: you both get the same question, first to be right wins.
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Course-tuned questions
New practice questions generated in the real style of your syllabus — HSC, VCE, SAT, A-levels, UCAT and VIC Selective Entry — trained on real past papers, not a generic prompt. Free with an account — 15 a day →
practice chat
Practice questions in your syllabus's real style.
Chat with a model fine-tuned on real past papers for your exact course — not a generic AI guessing at the format. Ask for one question, a set of five, or a harder one on a topic you name, and it marks your answer as you go.
- Trained on real past papers, so the wording, mark allocation and difficulty match what you'll actually sit.
- Targets your weak spots — it knows the mistakes you've already logged and drills those.
- Marked as you answer, with the correct approach when you slip, straight into your error log.
HSCVCESATA-LevelsUCATVIC Selective
Practice chatVCE · Methods
Give me a hard calculus question.
Question (4 marks)
Let f(x) = x·e^(−2x). Find the exact x-coordinate of the stationary point and determine its nature.
styled on VCE Mathematical Methods Exam 2
x = 1/2, it's a maximum
Correct — f′(x)=e^(−2x)(1−2x)=0 at x=½, and f″(½)<0 so it's a maximum. Logged to your Calculus log. Want the next one harder?
studying on your own?
errorboard works for individual students too.
01
Same engine, no roster needed
Download it free and get your own error log without joining an organization. New to the method? Read how to keep an error log for studying. And ask your tutor if they already run errorboard, you may just need an invite link.
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Free to start
Capture and file mistakes to tidy per-topic Word logs for free, forever, no account needed.
03
Study with friends
Swap friend codes to see each other's weak subjects (opt-in, you control what's shared), climb the friend leaderboard, and challenge each other to quiz duels on Discord.
04
Upgrade any time
Add Pro for auto-marking, improvement plans, unlimited practice questions past the free 15 a day, and the Discord quiz bot — or ask your tutoring centre to cover it under their organization plan.
under the hood
Small, native, and out of the way.
Cloud vision model
A vision model reads each frame in the cloud. Nothing to set up. No key to manage.
System tray
No window or taskbar clutter. Pause, capture or open settings from one icon.
Global hotkeys
Force a capture or pause watching without leaving your work.
One .exe
A single windowless build. Tick a box to start it with Windows.
pricing
Free for individual students. Set up personally for organizations.
Individual students can download errorboard and capture work into tidy per-topic Word logs for free, no account needed. A free account also gets 15 course-tuned practice questions a day. Add Pro for the AI marking on everything and unlimited practice. Cancel anytime from your account.
Running a tutoring organization? We set up seats and billing with you personally, no self-serve signup, one bill for the whole roster, per-student progress reports, CSV export, and invoice (net-30) billing for larger rosters.
Talk to us about your organization
Individual Pro
A$20
per month, billed monthly · AUD
- Everything in Free, plus:
- AI marks every capture and explains the correct approach
- Live auto-marking in the notebook and studio
- Unlimited course-tuned practice questions — no 15-a-day cap — plus the 1–5 difficulty dial and 50 saved practice chats
- Improvement plans and a Discord quiz bot from your mistakes, with friend duels
- Error logs synced across all your devices
7 days free, then A$20/mo. Cancel anytime. You'll create an account or sign in first.
Individual Free
A$0
forever · no account needed
- Capture screenshots of your work to a Word log per topic
- Unlimited topics and captures, stored on your machine
- Handwriting notebook with templates, shapes, PDF import and export, and cloud sync to the iPad
- Capture button and global hotkeys
- 15 course-tuned practice questions a day — free account, no card
Windows 10 and 11 · ~160 MB
in plain words
A mistake-tracking platform for tutoring organizations.
Tutoring centres and classrooms can run a whole roster under one organization, one bill, per-student progress reports, and CSV export for parent updates. Whether a student revises from a textbook, a question bank, or handwritten maths on an iPad, errorboard marks each error and keeps a running error log per subject, then builds an improvement plan and quizzes them on Discord. Individual students can use it the same way without an organization. Revision that means fixing what you actually get wrong.
Stop chasing
every student's mistakes by hand.
errorboard for organizations · priced per roster. Individual students can start free.