Instant steps, on your phone
Equations, inequalities, fractions, roots, systems, trigonometry, logarithms, limits, derivatives and integrals. Solved on the device, always free, even offline.
Type a problem with the math keyboard or scan it with your camera. Follow short steps, switch methods, and see the graph. Most typed problems are solved in an instant on your phone, free and offline.


From fractions to integrals: see what changes in every step, and go deeper only when you want to.
Equations, inequalities, fractions, roots, systems, trigonometry, logarithms, limits, derivatives and integrals. Solved on the device, always free, even offline.
Point the camera at a printed or handwritten problem. You confirm what was read before anything is solved.
When a problem needs more than the instant solver, AI (Claude, by Anthropic) reads and solves it. Every AI answer is labelled.
Factoring or the quadratic formula, completing the square and more: switch methods where it helps and compare.
Plot functions, inequalities and points together, zoom in, add sliders, and see geometry figures drawn to match.
Short or detailed explanations, a "Why?" behind each step, and a mode that reveals one step at a time.
Answers written the way your school writes them: pick your country's conventions, decimal comma or point.
Use the app in your own language, right-to-left ones included, with math always written left to right.
Large formulas, quiet surfaces, and the part that changed highlighted in every step.







Enter the problem with the math keyboard, or take a photo of it from your book or worksheet.
Check the problem reads right. The instant solver takes it on your phone; AI steps in only when needed, and always says so first.
Go through the steps at your pace, try another method, open the graph, then check your own solution.
Instant steps never cost anything. AI uses are clearly marked before you tap.
For everyday practice
Pay only for what you use
Monthly or yearly
1 credit = 1 scan or 1 typed problem solved with AI. Unused Plus credits don't roll over. Prices are shown in your local currency in the app before you buy.
No account is needed and your history stays on your phone. Ads are never personalised. You can back up credits, Plus and history with Google sign-in if you want to, and delete your data at any time in Settings → Privacy or on the web. The details are in the Privacy Policy.
Claude, by Anthropic. It is used only when you scan a problem or when the instant solver can't handle a typed one, and the app tells you before it does. Only the photo or the problem text is sent, never your name or e-mail address. AI can make mistakes: tap “Was this helpful?” to report a wrong answer, and a credit spent on it can be refunded.
Yes, for typed problems the instant solver handles: they are solved on your phone without a connection. Scanning and AI solutions need the internet.
Three levels, named by topic: Foundations (arithmetic, fractions, percentages), Algebra & geometry (equations, functions, geometry, trigonometry) and Calculus & beyond (limits, derivatives, integrals). Choose one, or let the app follow the problem.
Students, parents and anyone who wants to understand a math problem, aged 13 and up.
See the help page, or write to support@halfpast.io with the Support ID from Settings → Privacy.