errorboard comes in three shapes that share one account: the Windows app that watches whatever you study in, the handwriting notebook, and the snap-a-photo studio. This guide walks each one end to end.
The desktop app is the core of errorboard. It lives in your system tray with no window of its own and captures the program you study in on demand, so it can watch a browser question bank, a PDF past paper, OneNote, or anything else on screen.
Run errorboard-setup.exe.
If Windows SmartScreen warns you, click More info then Run anyway —
the app is new and not code-signed yet. The settings window opens the first time it runs.
Open the errorboard Pro tab and enter the email and password from your subscription. The app stays idle until you are signed in.
On the Detection tab, choose Standard, Question bank, or Solve and set a default topic for when the model can't infer one.
Click away and errorboard sits quietly in the tray. Tick Launch at sign-in on the Capture tab if you want it ready every time you boot.
errorboard does not film your screen. It captures a single frame only when you ask it to — by pressing the capture hotkey or the tray button. At that moment it grabs whatever window is in focus, sends that one frame to the cloud vision model, and if a mistake is found it files it in your error log.
Open settings from the tray icon any time. There are five tabs:
Shows what errorboard is doing right now and lets you set a session topic — force every mistake this sitting under one subject (e.g. Calculus). Leave it blank to auto-detect per capture.
Choose your logs folder (defaults to Documents). Optionally point everything
at a single .docx, or leave it blank for one file per topic. Toggle
Launch at sign-in here.
Pick the mode, a default topic, and two sliders: Min. confidence (how sure the model must be before it logs — raise it for fewer, higher-quality flags) and Ignore repeats for (a cool-down so the same slip isn't logged twice in a row).
Rebind the three global hotkeys below to whatever you like.
Your account — email, password and the backend URL. Sign in or switch accounts here.
These work from any app, even with the settings window closed. Defaults:
Write maths by hand on an iPad, a tablet, or any browser at errorboard.com/notebook — or get the Windows app for it from the download page. It marks your working as you write.
Use the pen, highlighter, eraser, shapes and lasso-select tools. Tap + Add page for a fresh sheet, or Import PDF to write directly over a worksheet or past paper.
Type an optional topic so logs file neatly. With auto-mark on (the default), errorboard checks each step a moment after you pause. Prefer manual? Turn it off and tap Mark this page now.
Upload or paste the official solutions / mark scheme. When set, marking uses it as the answer key and awards marks against it instead of solving from scratch.
Mistakes appear in the side panel. Lasso a stroke and hit Delete to clean up, and mark anything resolved once you've understood it. Every notebook keeps its own log.
Already finished on paper? Open the studio on any device, set an optional topic, then Take a photo or choose an image of your working and tap Mark it. errorboard returns an improvement plan and logs each mistake. Make sure your final answer is visible in the photo before you mark it.
The mode tells errorboard how to judge what it sees. Pick it on the Detection tab (desktop) or the mode selector (notebook / studio).
Every mistake lands in a plain Word document — one <topic>_errors.docx per
subject by default — in your logs folder (Documents on the desktop app). Each entry has:
Because they're ordinary .docx files you can open, search, print or annotate them
anywhere. With Pro, logs sync to your account so the same subject grows whether you studied on
the desktop, the iPad notebook or the studio. Review one before your next session and you stop
repeating the same mistake.
Still stuck? Email support.