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Grade Coach vs Brisk Teaching: Chrome extension or web app?
Brisk Teaching is the most-installed teacher AI Chrome extension in the world. Grade Coach is a web app. They are different shapes, and that matters more than features. Here is the honest comparison.
Enzo · May 19, 2026 · 7 min read
Brisk Teaching is, by install count, the most successful teacher AI product on the Chrome Web Store: 1,000,000+ installs, 4.7 stars from 729 ratings, and the listing copy claims "saved educators around the world over one million hours of time." Whatever your opinion of the product, you have to respect that distribution moat.
Grade Coach is a different shape: it is a web app, not a Chrome extension. That choice is the heart of how we differ. Let me make the case for both shapes honestly, then you can pick.
The case for Brisk: it lives inside Google Docs
Brisk's killer move is that it works inside Google Docs, Google Slides, and a few other Google surfaces. Highlight a student response, click a button in your browser sidebar, get feedback. It never asks you to leave the document you are already in. For teachers whose grading happens primarily inside Google Docs, this in-place workflow is genuinely lower-friction than any web app can be.
Brisk also has a feature breadth advantage. The extension covers rubric generation, feedback, leveling, simplifying text, generating quizzes, and dozens of smaller utilities. If you teach in a Google-first school and you want one extension that covers a wide spread of small teacher tasks, Brisk is the strongest answer on the market.
The case for Grade Coach: it works on paper
Brisk assumes student work is already digital. Grade Coach assumes it might be on paper, photographed from your phone, in handwriting.
That is the bet. Most international classrooms (where the founder of Grade Coach taught for 10+ years) still hand back paper. Half of K-12 still uses paper for first-draft writing and almost all of K-12 uses paper for math working. A Chrome extension cannot grade a stack of paper. A web app with a camera-first upload flow can.

Beyond the paper-vs-digital split, Grade Coach is also built differently:
- Locked rubric across the class set. Every paper graded against the exact same rubric interpretation locked from paper one. Brisk's per-document interactions do not have this concept (each prompt is independent).
- One credit pool across grading + worksheets + parent reports + practice + class deep-dive. Brisk is a feature menu; Grade Coach is a single workflow spine that links the graded substrate into per-student insights.
- Editable spreadsheet output by default. Grade Coach finishes a class set on a familiar grade-sheet you can edit, export to CSV, or copy to Google Sheets. Brisk's outputs are per-document comments; gathering them into one place is on you.
The honest tradeoffs
Brisk has the bigger user base and the Chrome Web Store discoverability moat. If you ask three teachers in a US public school what AI tool they have tried, at least one will say Brisk. Word-of-mouth is a real advantage we do not have today.
Grade Coach does not (yet) have a Chrome extension. If your grading workflow is Google-Docs-first and you do not have a stack of paper to deal with, Brisk's in-document UX is hard to beat.
On pricing, Brisk has a free tier and a paid Plus tier. Grade Coach has a free tier (10 papers, no account) and a credit-pool paid model. Different shapes, similar entry prices.
How to actually decide
Ask yourself: what does the stack of work I am grading look like? If it is Google Docs from a 1:1 Chromebook school, Brisk fits the workflow you already have. If it is paper, photographed from your phone, or a mix of paper and Google Classroom submissions, Grade Coach fits.
Both have free tiers. Try them on a real assignment, not on a hypothetical one. If you pick Brisk, you are picking a well-engineered product with massive teacher adoption. If you want to try Grade Coach on a stack of paper, the first 10 papers are free, no card and no account required.