Handwriting on paper, marked in seconds

Your students write with a pencil, the way you already teach it. Calihand reads the photograph and scores every page on letter formation, spacing and slant — so a class of twenty-five comes back marked before the next lesson.

The demonstration needs no account and asks for nothing. It is a full term of a third-grade class, with the report a teacher would read on a Monday morning.

Paper first

Children write on a printed sheet with a pencil. The only screen involved is the one a teacher photographs the work with. Nothing about the lesson changes.

Marked while you watch

Each page comes back with a score out of a hundred against the model, and a note naming what to fix — the letters that lean, the words that crowd, the line that drifts.

Evidence, not impression

A term of scores per child, downloadable as a spreadsheet. Enough to answer a parent at conferences with something firmer than a feeling that it is coming along.

How a class runs

Four steps, and the first three happen once.

A model line of handwriting above a student attempt at the same words
  1. Make the class and type the roster. First names are enough. You are not asked for a student email address, because there is no student account to attach one to.
  2. Print the sign-in cards. One card per child, carrying their name and a six-digit code. A seven-year-old can read it off the card and type it.
  3. Assign a course. Pick one from the catalogue, or build your own from the models your school already teaches — a course is a set of model sheets and the score each one has to reach.
  4. Read the class report. Scores by child and by lesson, so the next lesson can be aimed at the letters that actually failed.

What happens to student work

The questions a head of school asks before a pilot, answered before you ask them.

No student email addresses

Children sign in with a printed card, not with an account they own. There is no student inbox, no password to forget and nothing to recover over the summer.

Consent the way you run it

The school can consent on behalf of parents, or every parent can consent individually. It is a setting on your school, not a policy we impose on it.

Kept for as long as it is useful

A child's work stays where their teacher can look back at it, which is most of why it is worth keeping. If your policy requires the photographs to be deleted after a set period, we set that period for your school.

Stored in the United States

Student work and class records live on servers in the United States.

Very little to hold

A first name, photographs of handwriting and a score. No date of birth, no address, no way to contact a child. A privacy review here is short because there is not much to review.

We will sign yours

Send us the data privacy agreement your school or your association uses and we will work through it clause by clause. Tell us what your review needs and you will have it in writing.

What it costs

A price per student, for the school year, agreed with you.

We quote each school rather than publish a rate. A co-op of nine children and a grade of two hundred are not the same purchase, and a number on a page would be wrong for one of them before you had finished reading it. Tell us how many children you teach and how long you want it for, and we will work out a figure for you.

Priced per student, for the school year.

Teacher accounts cost nothing. Add as many as you teach with.

Billed by invoice to the school.


Ask for a quote and we will settle a trial in the same conversation — how many children, over how long, and what it should have told you by the end.

Questions schools ask

For the child, none by default — they write on paper. Somebody photographs the finished page, and that can be the teacher working through a stack at the end of the lesson. Older students can photograph their own work and read their own score, which is a minute a sheet.

No, because the score is a comparison rather than a judgement against one correct alphabet. A course is built from model sheets, so a school that teaches its own style uploads its own models and every score is measured against those.

The photograph and the model sheet are compared by the Claude vision model, which returns a similarity score out of a hundred together with written notes on formation, spacing, slant and size. The score is a teaching signal rather than a grade — you decide what it is worth in your gradebook.

No. You type a roster of first names and print a card for each child carrying a six-digit code. That is the whole of a student identity here, which is also why there is so little to ask about in a privacy review.

Yes, and it is the ordinary way in. A trial is arranged with us: we agree how many children and over how long, so that both sides know what it is meant to show. It commits the school to nothing beyond the trial itself, and the teacher running it does not have to go and ask anybody for a budget first.

It works the same way. A co-op is a roster and a set of courses like any other class, and the per-student price does not change with the size of the group.

See what a term looks like

Open the demonstration class and read its report the way you would read your own. If it tells you something you would have wanted to know about your own room, the rest follows.