= Math Solver

Free plan · paid from $3.99/mo

What the maker publishes

Data and security

The privacy policy says data transmission uses HTTPS/TLS and authentication is handled by Firebase, which it says maintains SOC 2 compliance. source

Input

Users write with a finger or stylus without a keyboard or LaTeX syntax. source

Internet requirement

Handwriting recognition and solving require an internet connection. source

Maker

The privacy policy identifies John T. Foster as the app's developer. source

Product

= Math Solver is a handwriting-first calculus solver that turns written equations into symbolic answers. source

Recognition and processing

The privacy policy says handwritten input is converted to text using the OpenAI API and sent to the solver service; expressions are processed in real time and not retained after a solution is generated. source

Recognized problem types

The support page lists definite and indefinite integrals, derivatives, systems of equations, differential equations with initial conditions, fractions, arithmetic, limits, and summations. source

Settings sync

Signing in with Apple syncs settings across devices. source

Solver

Its symbolic engine is powered by SymPy and handles integrals, derivatives, differential equations, and more. source

Subjects

The product is built for Calc I–III, differential equations, and linear algebra. source

Support

Support is available at [email protected], and the maker says it typically responds within 24 hours. source

Third-party services

The privacy policy lists Firebase Auth for authentication, OpenAI API for handwriting recognition, and RevenueCat for subscription management. source

Usage

Free use includes five solves per day and does not require an account. source

Checked against the maker's pages on 11 Oct 2026.