Mindjoy

AI marking that gives every student better feedback

Mindjoy marks every assignment and writes the rich, personalised feedback you'd love to give all 120 students, if only you had the hours.

Trusted by 50,000+ educators and students · 2M+ questions answered

Painted scene of Apex Stellenbosch students in blue blazers walking along an orange-and-white school building

If I get the AI to mark students' papers through Mindjoy, I'm still going to check if it got it right, but it's going to take me a fraction of the time than if I had to sit there and mark.

Colin Northmore
Colin NorthmoreExecutive Principal, Evolve Online
Injini
The University of Texas at Austin
Apex Stellenbosch
North-West University
Evolve Online

Why mark with Mindjoy?

A generic AI gives generic comments. Here's what makes Mindjoy's marking different — and safe to put in front of students.

Marks to your rubric

From your content, Mindjoy drafts a full mark scheme — credit for each step and all — which you can edit or override. It marks the actual working and reasoning, not just keyword or text matches.

AI mark scheme Edit

Solve 3(x + 2) = 5x - 4 · 3 marks

3x + 6 = 5x - 4expands bracketsM1
2x = 10collects termsM1
x = 5correct answerA1
M = method · A = accuracy3 / 3

Handwritten submissions

Students snap a photo of their handwritten working — diagrams, equations and messy margins included — and Mindjoy marks it just like a typed answer.

Snapped from paper
photo.jpg
Marked like a typed answer4 / 5

Formative & summative

Built for both. Formative gets rich settings — multiple retries, hints and instant feedback to build mastery. Summative locks down with timed, test-conditions assessments.

Formative
  • Multiple retries
  • Hints & support
  • Instant feedback
Summative
  • Timed
  • Test conditions
  • One attempt

Class insights

Just ask Mindjoy in a chat how the class did — across one assignment, a whole test, or the term. Spot common misconceptions and who needs support, in seconds.

How did 9B do on the photosynthesis test?
Class average 72%. 8 students mixed up respiration and photosynthesis — worth a recap. 3 need support on the light-reaction step.
1 assignmentWhole classOr the full term

No made-up feedback

Every comment quotes what the student actually wrote — no invented praise, no hallucinated mistakes.

Student answer

Because the Sun moves around the Earth.

Feedback quotes the exact phrase — grounded in what they wrote, nothing invented.

Override anything

Feedback is auto-generated and accurate enough to send as-is — you rarely need to touch it. But you can always review and override any comment before it reaches a student.

Feedback to Aisha

Clear explanation — to reach full marks, add that the Earth spins on its own axis.

Auto-approvedready to send

A built-in AI tutor

Stuck on the feedback? Students ask follow-up questions to a teacher-supervised Mindjoy tutor, right there.

Why isn't it the Sun moving?
Good question! What do we say the Earth does once a day…?

Marked in seconds, not days

Feedback lands within ~10 seconds of a student submitting — while the work is still fresh in their mind.

Answer submitted
Feedback readyin 10s

Feedback that grows students

Specific, encouraging next steps — not just a score. The kind of comment that actually helps a student improve.

Feedback

Great use of evidence. Next step: add one example to your second point and you'll reach the top band.

On track for +1 band
The feedback gap

Every student deserves real feedback

The feedback that actually helps students improve takes time no teacher ever has enough of — so most answers come back with just a mark. See the same answer marked the usual way vs with Mindjoy.

Marked by hand
Question2 marks

Why do we have day and night on Earth?

Student answer

Because the Sun moves around the Earth.


Feedback1 / 2 marks

“Not quite. See me.”

  • A mark, not guidance
  • Arrives days later
  • The misconception goes uncorrected
With Mindjoy
Question2 marks

Why do we have day and night on Earth?

Student answer

Because the Sun moves around the Earth.


Feedback1 / 2 marks

What you did well
You've recognised that day and night involve both the Sun and the Earth — that's the right place to start.

Where the gap is
The Sun doesn't move around us. That's a really common mix-up, so let's untangle it.

Your next step
Explain that the Earth spins on its own axis once every 24 hours — the side facing the Sun has day, the side turned away has night. Try rewriting your answer with that idea.

  • Specific, rubric-anchored
  • Delivered in real time
  • A clear next step — reviewed & approved by you

Works on every kind of work

Essays Long answers Multiple choice Math

From your content to real-time feedback

It takes about 30 seconds to turn your content into an auto-marked class activity.

Step 1

Upload your content

Drop in your notes, slides or worksheet. Mindjoy reads it as the source for your activity and the marking standard.

Drop notes, slides or worksheet
Photosynthesis.pdf
Lesson slides.pptx
Step 2

AI auto-generates your activity

In about 30 seconds, Mindjoy turns your content into a ready-to-use, auto-marked activity. Edit any question, mark or rubric to your liking.

Auto-generated~30s
Short Answer2 marks Edit

Why do we have day and night on Earth?

Step 3

Students complete it, feedback as they go

Students work through it and get personalised feedback in real time — with an optional AI tutor beside them you can switch on or off.

Feedback as you go2 / 2
AI tutoron
Anywhere, any device

Students answer on mobile or desktop

On the Mindjoy mobile app or the web, students snap a photo of handwritten working, answer by voice, or type. Everything stays in sync with your class, progress and curriculum.

Snap a photo Answer by voice Web or app
Available on App Store Google Play
Activity
Feedback2 / 2
Short Answer
2 / 2
Loved by educators

Real classrooms, real results

The insights it creates are on the next level. Seeing what's happening behind the scenes helps me understand where students are truly struggling, breaking through my own biases about what they need help with. The tools just keep getting better and meet our needs more and more.
Elizma Visagie
Elizma Visagie
Senior Lecturer, North-West University
Read the story
If I get the AI to mark students' papers through Mindjoy, I'm still going to check if it got it right, but it's going to take me a fraction of the time than if I had to sit there and mark.
Colin Northmore
Colin Northmore
Executive Principal, Evolve Online
Read the story
Pricing

Simple, transparent pricing

Pro plan

Mindjoy's Pro plan includes the very latest AI features to make your classroom limitlessly creative.

$30per month · USD
Sign up

Starts with a 30-day free trial

This includes:

  • Up to 90 students
  • Unlimited assignments & activities
  • AI marking on essays, long answers, multiple choice & math
  • Personalised, rubric-based feedback on every answer
  • Editable questions, marks & rubrics
  • Real-time feedback as students work
  • Snap-a-photo & voice answers (mobile or web)
  • Voice-to-text & text-to-voice
  • Actionable insights on engagement, misconceptions, areas for improvement & more

School plan

Get your entire school involved with Mindjoy's school-wide plan.

Custom
Contact us

Tailored to your school's size and goals

This includes:

  • Everything in pro
  • Tailored professional development to meet your innovation goals
  • Unlimited access to weekly Learning Labs and 24/7 dedicated account management
  • Platform training and research-backed best practice guidance for implementation
  • Org management tools with SSO, dashboards, and admin reports
  • Quarterly check-ins to assess teaching and learning impact goals
  • Support to align AI tools integration with your organization's objectives
  • Access to the latest research for innovative teaching and learning strategies

Questions teachers ask us

Give every student feedback worth reading

Give every student detailed feedback — without the late nights. Try it free for 30 days, or book a 20-minute walkthrough.