Offline AI for teachers

Report comments,
without the dread.

Log quick notes through the term. When report season hits, on-device AI drafts faithful, personal comments in minutes, and your students' data never leaves your device.

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Offline by designmacOS & Windows
The problem

It's the end of term, and you're running on empty.

Marking is stacked up, exams are running, events eat your evenings, and then the comments. Thirty, sixty, a hundred of them, each meant to be personal and fair. But the detail that made each child them has faded, so you rush, repeat phrases, and lose another weekend.

The enemy isn't you. It's the blank page at the worst time of year. Cai Comments removes it.

dread → calm
blank page → faithful draft
hours → minutes
generic → personal
Features

Everything you need to write better comments, faster.

All on-device. Nothing about your students is ever uploaded.

Classes & daily notes

Add a class one pupil at a time, several at once, or import a spreadsheet. Then jot quick dated observations as they happen.

Assessments

Record tests, assignments and reading levels in the grading system you actually use: letter grades, IB 1–7, standards-based. It also shows the progress between two results.

Attendance

Take the daily register per class. A note sent to the whole class skips anyone marked away, and tells you who it left out.

AI-drafted comments

Turn your records into faithful semester comments. Ask for "this term" in your own words, with tone, length & audience controls.

Checked against your records

Every figure a comment states is looked for in that pupil's own notes and results. Anything that isn't there is flagged, not quietly sent.

Whole-class comments

Write once, personalised per student by name and gender, the whole class in one pass.

Instant recall

Ask "What did Sam get on the maths test?" You get grounded answers from that one student's entries only.

Voice notes

Dictate observations between lessons. Transcription runs locally, offline.

English ↔ 简体中文

Full UI, models and report output in both languages, built for bilingual classrooms.

Privacy by design

Your students' data is yours alone.

Most "AI for school" tools upload children's data to the cloud. Cai Comments never does, because it never needs to. Everything runs on your computer.

  • Offline by default. Classification, recall, drafting and transcription all run on-device.
  • No student data ever leaves. Names, notes, marks and photos live only in a local file on your device.
  • No accounts to set up for students. No IT sign-off needed to start.
  • Suited to FERPA / GDPR / COPPA-conscious schools. Because the data stays with you.
How it works

Log the year. Let the comments write themselves.

Log quick notes

Through the term, add short dated entries per student. Type or dictate, in seconds.

AI drafts, faithfully

At report time, on-device AI turns your notes into personal comments, grounded in what you actually observed.

Edit & export

Tweak the tone, make it yours, and copy or export. You're the author; the AI just does the heavy lifting.

Pricing

Simple pricing. Cancel any time.

No hidden fees. Cancel anytime.

Starter

Monthly · For Teachers
$10 / month, per teacher
 
  • All app features included
  • Access to new features
  • Student import and export
  • Cancel any time, easy and simple
Select
Most popular

Pro

Yearly · For Teachers
$99 / year, per teacher
Save 17%, just $8.25 a month
  • Everything in the monthly plan
  • Two months free compared with paying monthly
  • Your price is locked in for the year
  • Unlimited entries and advanced customisation
  • Renews yearly, cancel any time
Select

School

Up to 25 teachers
$2,351 / year
Save 22% versus monthly, excl tax
2550100More
  • Everything in the yearly licence
  • Teacher account management
  • Student data still never leaves each device
  • Advanced support
Select

Works best with 16 GB of RAM. The AI runs on your own computer, so more memory means faster, better drafts. macOS 14+ or Windows (x64).

14-day money-back guarantee. Full refund from your account, no questions asked, and you can cancel any time.

Not sure yet? Try a 14 day free trial to test out the AI software.

A card is needed to start, and nothing is charged today. After 14 days the trial becomes the paid licence you chose and your card is charged automatically, unless you cancel first. Cancelling takes a couple of clicks from your account.

Start Free Trial
Get it

Cai Comments for macOS & Windows

Place your order, verify your email, and we'll send your download link. A single self-contained installer for your platform, with no extra runtimes to install.

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Already ordered? Sign in to download · macOS 14+ · Windows (x64) · 16 GB RAM recommended

FAQ

Questions, answered.

Yes. Note classification, recall, comment drafting and voice transcription all run on your computer with a bundled on-device model (a one-time ~1.6 GB download on first run, then a quick activation). None of your teaching work needs a connection. It works on a train or in a remote school. The only thing that does is your licence: the app quietly confirms it whenever you happen to be online, and only asks you to reconnect if it has had no connection at all for 90 days.
It never leaves your device. Names, notes, marks and photos are stored only in a local file on your computer. Our servers never receive any student data. Only your account email and licence are online.
No. It's a direct download you install yourself, with no student accounts to provision and no cloud service to vet. Your teaching work runs entirely on your own computer; the app only needs a connection to confirm your licence, and it will go up to 90 days without one.
A Mac on macOS 14 or later, or a Windows PC (x64). Because all the AI runs on your own computer rather than in the cloud, memory is what matters most: 16 GB of RAM is recommended for the best results. It will run on less, but drafts take longer, and the larger Advanced model is only offered where there is enough memory.
$10 USD a month for one teacher, or $99 a year. The yearly plan works out at $8.25 a month, so you get two months free. Schools start at $2,351 a year for up to 25 teachers. Every licence includes all updates while it's active, and you can cancel in a couple of clicks. There's a 14-day money-back guarantee, refundable from your account in a couple of clicks. Payment is by card, handled by our payment provider Airwallex; your card details are entered directly with them and never reach our servers.