Zeretis is a free online math solver that gives exact, step-by-step answers using symbolic computation — not AI estimation. Algebra, calculus, differential equations, linear algebra. Type in plain English. Your data stays yours.
Zeretis gives exact symbolic answers — not AI approximations.
Click any card to learn how Zeretis works for you.
See every step explained clearly. Check your homework, understand where you went wrong, and learn the method — not just copy the answer.
See how it helps →Project solutions live, verify student answers in seconds, and generate worked examples on demand. A classroom tool that shows the method.
See how it helps →Safe, focused, and private. The solver only responds to math — can't go off-topic, won't engage in open chat, collects no data about your child.
See why parents trust it →ODEs, systems of equations, calculus, linear algebra — exact symbolic results, no floating-point error. Browser or REST API.
See engineer features →Three resources, one goal: making exact symbolic mathematics accessible to everyone.
From high school algebra to graduate-level differential equations — exact symbolic answers, every time.
These aren't policies we added after the fact. They're fundamental to how Zeretis works — technical constraints, not promises.
We don't collect, store, or sell your queries. What you type is processed to produce a result and discarded — it's not logged, not used to train models, not shared with third parties, and not associated with your identity. A free account is required — we use it only to track your anonymous usage limit. If you never sign up, we have nothing on you.
The solver only accepts mathematical expressions and returns symbolic results. It has no language model component — there is no mechanism by which it can produce off-topic content, engage in conversation, or respond to anything that isn't a math problem. This isn't a content filter that can be bypassed. It's a fundamental constraint of how the system works.
Zeretis uses symbolic computation, not a language model. There is no probability, no sampling, no "creative" interpretation. The same input always produces the same output — which means results are auditable, reproducible, and explainable. There's no hallucination risk because there's no generative component. It either solves the problem exactly, or tells you it can't.
No ads, no tracking pixels, no third-party SDKs harvesting behavioural data. Zeretis is funded entirely by subscriptions — which means our incentives are aligned with yours. We make money when the product is genuinely useful, not when you spend more time on the page. We have no financial reason to distract you, track you, or sell access to your attention.
The Zeretis REST API returns exact symbolic results and step-by-step JSON. CPU-only, deterministic, built for production use. From $10/month.
Most AI tools run on massive GPU clusters consuming enormous amounts of electricity. Zeretis is different — symbolic computation is algorithmically efficient. It runs on standard CPUs, requires no model inference, and uses a fraction of the energy of LLM-based tools.
Zeretis uses 99.9999% less energy than GPU-based AI inference. The solver is a compiled Rust program that runs in ~30 microseconds on a standard laptop — thousands of times more efficient than any neural network approach. No approximation needed — for the solver, or the environment.
Join students, teachers, and engineers already using Zeretis to learn, build, and solve.