See the graph change
Move a slider and watch a parabola shift, a wave stretch or a tangent slide. An equation becomes something you can explore.
Find your way through the unknowns
AlgebraHandbook.
Every x has a story.
Follow the steps, move the graph, see the proof. A friendlier way to make sense of school algebra and the beginnings of calculus.
Free download · optional Pro features
App screenshot
159articles
39live graphs
20step-by-step solvers
Why you’ll love it
The answer is only the beginning.
Follow the reasoning
Solvers show the steps. Worked examples and visual proofs help you understand how a result comes together.
Learn by trying
Fresh practice problems, explanations after each answer and common mistakes help you find the next thing to work on.
Take a look
A little closer.
Real screens. A better feel for what’s inside.
FAQ
Good to know
Answers before you get started.
Does it work offline?
Yes. The handbook and its reference content are available offline after installation. Apple Intelligence features also require a compatible device and a downloaded system model.
What is free?
You can download the app for free. The reference handbook stays useful without Pro; additional learning tools and AI features depend on the app’s Pro plan. The App Store and the in-app purchase screen show the current options.
Do I need Apple Intelligence?
No. You can read and use the handbook without it. The AI tutor is optional and requires a compatible iPhone or iPad with Apple Intelligence enabled; supported languages depend on your system.
Which devices can I use?
The app is available for iPhone and iPad. Check the App Store page for the current operating system and device requirements.
Make the next unknown a little less unknown.
Free download · optional Pro features
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