An AI tutor for adults who are teaching themselves
Polyz is an AI tutor that builds you a personal course on anything you want to learn. A 90-second diagnostic finds what you already know, you get a real syllabus made for your goal, and every lesson is rewritten based on how the last one actually went.
The diagnostic, your course, and the whole first lesson are free. No card until you want to keep going.
The short version
Most tools called an AI tutor are a chat box with a friendly name. They answer the question you asked and forget you afterwards. That is genuinely useful when you already know enough to ask a sharp question, and close to useless when you do not know what you are missing.
Teaching is a different job from answering. It needs a measurement of where you are, a sequence that goes somewhere, and a memory of what you got wrong. Polyz is built around those three things: it tests you before it teaches you, generates a course for your specific goal, grades your practice, and uses the result to decide what tomorrow's lesson should be.
How it works
Four steps, and the first one takes a sentence.
Say what you want to learn
In plain language, the messy version. No course catalog to browse and no level to pick, because guessing your own level is the thing people get wrong.
A 90-second diagnostic sizes you up
Adaptive questions find what you already know and where your actual edge is, so you skip what you have and start where it gets hard.
You get a course, not a chat log
A real syllabus built for your goal and your starting point, grounded in how the subject is actually taught rather than improvised turn by turn.
It rewrites itself as you go
Every lesson has graded practice. Where you struggle, the next lesson changes. Where you are solid, it moves on instead of drilling you.
Four ways to learn something with AI
Compared by approach rather than by brand, because the approach is what decides whether you actually finish.
| Capability | Polyz | General chatbot | Fixed video course | Homework-help tutor |
|---|---|---|---|---|
| Measures what you already know before teaching | ||||
| Builds a syllabus for your specific goal | ||||
| Remembers where you struggled last session | ||||
| Changes the next lesson based on your results | ||||
| Grades practice instead of just answering | ||||
| Written for adults, not a school curriculum | ||||
| Works on any topic you can describe | ||||
| Answers a one-off question instantly |
Note the last row. A general chatbot is still the faster tool for a single question, and Polyz does not pretend otherwise — the AI tutor inside each lesson is there for exactly that, but the product is built for the case where you want to end up somewhere, not just get unstuck once.
Why the course is the point
Four decisions that separate teaching from answering.
It measures before it teaches
Starting at the wrong level is the most common reason self-teaching stalls: too easy and you quit from boredom, too hard and you quit from friction. The diagnostic is adaptive, so it converges on your edge in about 90 seconds instead of making you self-assess.
It is grounded in real syllabi
Courses follow how a subject is genuinely taught, rather than whatever ordering the model improvises in the moment. Sequence matters in a way that is invisible until it is wrong, and a plausible-sounding order can quietly leave holes.
Practice is graded, not passive
Every lesson includes interactive practice that gets marked. That grade is not a score for its own sake; it is the input that decides what the next lesson does, which is the part a video course structurally cannot do.
No streaks, no points, no guilt
There is no engagement machinery designed to keep you opening the app. You are an adult with a reason for being here. The measure of the product is whether you learned the thing, not whether you kept a streak alive.
Common questions
What is an AI tutor?
An AI tutor is software that teaches you a subject one-to-one instead of handing you a fixed video course. The useful ones do three things a chatbot does not: they measure what you already know, they follow a deliberate sequence toward a goal, and they change what they teach next based on how you did. Polyz does all three: a diagnostic, then a generated course, then lessons that adapt to your graded results.
How is this different from just using ChatGPT?
A general chatbot is excellent at answering the question you thought to ask. It does not know what you should learn next, it does not track what you got wrong three sessions ago, and it has no plan. That is the gap: prompting well requires already knowing the shape of the subject, which is exactly what you lack when you are learning it. Polyz starts by measuring your level, builds the sequence for you, and carries what you struggled with into the next lesson.
Is this for students or for adults?
Adults. Most AI tutors are built around K-12 homework help and a school curriculum, with guardrails and pacing to match. Polyz assumes you are learning outside of school, for your own reasons, on your own schedule: a career change, a skill your job now needs, or something you have wanted to understand for years.
What subjects can it teach?
Anything you can describe in a sentence. Courses are generated from your goal rather than picked from a catalog, so the range is not limited to a fixed subject list. Practical topics with a well-established body of knowledge work best, because the course can be grounded in how the subject is genuinely taught.
How much does it cost, and can I try it first?
The diagnostic, your generated course, and the entire first lesson cost nothing, and no card is needed to reach them. Polyz Pro is $25.99/month (or $17.33/month billed annually) with a 7-day free trial, and includes up to 2 new personal courses every month plus the full Polyz Writing Studio. Cancel any time before day 7 and you are not charged.
Does it replace a human tutor?
No, and it is worth being straight about that. A good human tutor reads your face, hears the hesitation in your voice, and knows when the real problem is confidence rather than content. What an AI tutor gives you instead is availability and patience: it is there at 6am, it will re-explain the same idea a fourth time without sighing, and it costs a fraction of an hourly rate.
A professional AI writing app
The same subscription includes a full manuscript editor and a writing coach that grades your craft across 13 skill categories.
What do you want to learn?
Type it in a sentence and see the course it builds. The diagnostic, the course, and the first lesson are free.
Start learning freePolyz Pro is $25.99/month, or $17.33/month billed annually, with a 7-day free trial. See full pricing.