Whiteboard app for Android

The whiteboard that understands your handwriting.

Write a maths problem the way you would on paper and finish it with “=”. Chalkmind works it out, writes the answer next to yours in handwriting, and shows the steps. Then ask it to explain, give a hint, or check a student’s working.

Coming soon to Google Play · Android 7.0+ · Best on a tablet with a stylus

Chalkmind solving a handwritten equation The equation 2x + 6 = 14 is written by hand. Chalkmind offers the answer and writes x = 4 in yellow, with two short working steps. ✓ x = 4 · Write answer · Steps STEPS 1. 2x = 14 − 6 = 8 2. x = 8 ÷ 2 = 4
  • Works offline for writing and drawing
  • Stylus palm rejection
  • Import and annotate PDFs
  • No ads
Features

Everything you write becomes something you can learn from

Chalkmind feels like a normal whiteboard: pen, highlighter, eraser, pages. It also understands what you write.

Solve maths you write by hand

Write an equation, an identity or a geometry problem and end it with “=”. Simple sums are solved instantly on the device; harder ones, like the triangle here, are read and solved by the AI.

  • Answers appear in handwriting that matches yours, on your line and at your angle
  • Step-by-step working you can put on the board with one tap
  • Plot equations as graphs right next to the working
  • Also handles physics and chemistry, like balancing equations

An AI tutor that looks at the board

Circle any part of the board and ask about it. The assistant sees exactly what you selected, so the answer is about your problem, not a generic one.

  • Check my work finds the first mistake and shows the fix
  • Hint nudges towards the next step without giving the answer away
  • Explain, practice questions, quizzes, flashcards and revision notes
  • Snap a photo of a textbook question to have it explained

Highlight a word in a PDF to understand it

Import worksheets, notes or a textbook chapter and write straight on top. Highlight a word and Chalkmind gives its meaning in that sentence. Highlight a paragraph and it explains it in simple language.

  • Pages open as you reach them, so even long PDFs import quickly
  • Works on scanned pages too
  • Add the explanation to the page as a note
  • Export annotated pages as PDF or images

Photosynthesis

Plants use sunlight, water and carbon dioxide to make glucose. This takes place in the chloroplasts of leaf cells, where chlorophyll absorbs light energy.

Flowcharts and mind maps you can edit

Type a topic and get a flowchart, mind map or concept map drawn on the board, made of real shapes and text. Move a box, rename a step or add your own arrows.

  • Good for processes, cycles, timelines and revision maps
  • One undo removes it if it isn’t what you wanted
The water cycle Evaporation Condensation Precipitation Collection drawn as editable shapes

Ink that behaves like a real board

Fast, smooth writing with a stylus or a finger, and the tools a lesson needs.

  • Rough circles, boxes and arrows snap into neat shapes
  • Erase whole strokes, or only the part you touch
  • Pages or an endless canvas; plain, ruled, grid and dark boards
  • Laser pointer, undo per page, copy and paste, autosave
Convert to circle? Convert Keep
Who it’s for

Built for both sides of the classroom

Teachers

  • Teach from a tablet on the projector, with a laser pointer and clean pages
  • Put a worksheet PDF on screen and solve it live
  • Make a quiz, worksheet or lesson plan from the topic you are teaching
  • Turn a messy explanation into a neat flowchart for revision
  • Export the lesson as a PDF to share with the class

Students

  • Work through homework and ask for a hint when you are stuck
  • Check your working before you hand it in
  • Highlight words you don’t know in your notes or textbook PDF
  • Turn a chapter into flashcards and practice questions for revision
  • Keep tidy notes with shapes, graphs and diagrams
How it works

Write, ask, understand

  1. Write

    Use the pen like you would on paper or a whiteboard. Import a PDF if you are working from a sheet or a book.

  2. Ask

    End a problem with “=”, or select anything and pick Explain, Hint, Check my work or Quiz.

  3. Understand

    Get the answer in handwriting, the steps, and an explanation you can keep on the board.

Your boards stay on your device

Lessons, notes and PDFs are saved on your tablet or phone. When you use an AI feature, only what you choose (your selection, a page, a photo or highlighted text) is sent to answer you. There are no ads. Read the privacy policy.

FAQ

Questions

Is Chalkmind free?

Chalkmind is free to download. Writing, drawing, shapes, PDF annotation and on-device maths solving are free. AI features may have a daily usage limit.

Does it work offline?

Yes for the whiteboard: drawing, saving, PDF annotation and many maths problems are solved on the device. The AI tutor, PDF word look-up and harder problems need an internet connection.

Which devices does it run on?

Android phones and tablets running Android 7.0 or later. It works best on a tablet with a stylus, and supports palm rejection.

What happens to my boards and PDFs?

They are saved on your device. When you use an AI feature, only what you choose (a selection, a page, a photo or highlighted text) is sent to answer you. There are no ads.

Which subjects does it help with?

Handwritten solving covers arithmetic, algebra, geometry, physics and chemistry problems. The AI tutor can explain, quiz and summarise material from any subject.

Can teachers use it in class?

Yes. Teachers use it to explain on a tablet connected to a screen or projector, with a laser pointer, pages, PDFs and AI-made quizzes, worksheets and mind maps.

Be one of the first to use Chalkmind

Chalkmind is in testing before its Google Play launch. Teachers and students who join the beta get early access and a direct line to shape what comes next.

We’ll reply with a link to install from Google Play’s testing programme.