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Your own Personal Tutor

Learn anything.
Master it
step by step.

Forget the one-size-fits-all syllabus. Tell your tutor what you want to learn and get a personal roadmap from beginner to expert, with full lessons written for your level.

  • Free during early access
  • Use your own AI key
  • Your key stays encrypted
A student in a navy blazer taking notes at her desk
From beginner to expert
4 stages
To build your roadmap
~1 min
Claude, GPT, Gemini or Grok
4 AI providers
During trial period
$0

Works with the AI you already use

  • Anthropic Claude
  • OpenAI GPT
  • Google Gemini
  • xAI Grok

How it works

From curious to confident in four steps

No courses to search through and no one-size-fits-all syllabus. Just your topic, your way.

  1. 01

    Tell us what you want to learn

    Any topic, from coding to cooking to quantum physics.

  2. 02

    Answer 4 quick questions

    Your level, your goal, your weekly time, and how you like to learn.

  3. 03

    Get your roadmap

    A complete path from Beginner to Expert, built around you in about a minute.

  4. 04

    Learn lesson by lesson

    Your tutor teaches each lesson in full, with examples and exercises.

Three students studying together at a library table with a laptop and notebooks

Your path

A clear route from first steps to expert

Every roadmap climbs through the same four stages, so you always know where you are and what comes next.

  1. Stage 1BeginnerBuild a solid foundation. Nothing assumed, every term explained.
  2. Stage 2IntermediateConnect the ideas and apply them to real problems and projects.
  3. Stage 3AdvancedMaster the harder material, the trade-offs and the techniques.
  4. Stage 4ExpertThink like an expert: edge cases, current debates, how to keep growing.

Features

Everything a great tutor would do

Patient, thorough, always available, and focused entirely on what you want to achieve.

A roadmap built for you

Four stages, with modules and lessons in the right order and no gaps, paced to your goal and the time you have each week.

Complete lessons, not summaries

Why it matters, core concepts, worked examples, common mistakes and key takeaways, written at exactly your level. Stuck? Ask your tutor about any part of the lesson.

Practice that sticks

Every lesson ends with exercises of rising difficulty. Answers stay hidden until you've had a real go.

Math and code, done properly

Equations are typeset and code is syntax-highlighted, so technical topics read like a good textbook.

See how far you've come

Tick off lessons, watch each stage fill up, and jump straight back to where you left off.

Your AI, your choice

Use Claude, GPT, Gemini or Grok with your own keys, pick a model for each job, and have a backup step in if one is busy.

A peek inside a lesson

Lessons that actually teach

Each lesson is a complete page you can learn from on its own, structured the same way every time so you always know where you are.

  • Why this matters, in plain language
  • Core concepts, built on what you already know
  • Worked examples, step by step
  • Common mistakes, so you can avoid them
  • Exercises with hidden answers

Beginner · Growing your money · Lesson 3 of 36

How compound interest works

Worked example

A savings account pays 5% interest a year, compounded yearly. How much does $1,000 grow to in 3 years?

A=P(1+r)t=1000×1.053≈1157.63A = P(1 + r)^t = 1000 \times 1.05^3 \approx 1157.63
balance = 1000
for year in range(3):
    balance *= 1.05
print(round(balance, 2))  # 1157.63

Try it yourself

How long until the $1,000 doubles?

Show answer

About 14.2 years. The rule of 72 gives a quick estimate: 72 ÷ 5 ≈ 14.4.

Popular topics

What will you learn first?

Or type absolutely anything else.

Pricing

Choose your plan

Get AI included for $20 a month, or bring your own AI key for $10 a month. Free for everyone during early access.

Recommended

Pro

AI included. No API key needed.

$20/month

  • AI included: no API key or AI account needed
  • Up to 10 new roadmaps, 100 new lessons and 300 tutor questions a month
  • Full lessons with worked examples and exercises
  • Progress tracking across every topic
  • Cancel any time

Free for everyone during early access.

Own Key

Bring your own AI key and pay your provider directly.

$10/month

  • Use Claude, GPT, Gemini or Grok with your own API key
  • AI usage billed by your provider, usually a few cents a lesson
  • Pick any model and switch any time
  • Full lessons, progress tracking and tutor chat
  • Cancel any time

Free for everyone during early access.

Compare the plans in detail

FAQ

Questions, answered

Everything you need to know before you start. Still curious? Try it yourself.

What does it cost?

Personal Tutor is free during early access, using your own AI account, so you pay your provider directly, typically a few cents per lesson. Paid plans are coming later, with a free trial: Pro at $20 a month with AI included, so no API key is needed, or Own Key at $10 a month with your own key. We'll let you know before anything changes. Opening a lesson you've already generated is always free.

Which AI can I use?

Anthropic (Claude), OpenAI (GPT), Google (Gemini) or xAI (Grok). Connect one or several in Settings, choose which model writes your lessons and which answers your questions, and switch on the spot. If one is busy, your backup takes over.

Is my API key safe?

Your key is encrypted before it's stored and is never sent back to your browser. Only its last four characters are ever shown, and you can remove it whenever you like.

What can I learn?

Almost anything: programming, languages, music, finance, science, cooking, hobbies. If a topic could mean several things, your tutor picks the most common meaning and tells you so.

How long does it take to get started?

Your roadmap is ready in about a minute. Each lesson is written the first time you open it, streaming in as you read, and is saved for next time.

Can I learn more than one topic?

Yes. Every topic gets its own roadmap and progress, and your dashboard shows them all side by side.

Getting an API key

An API key is a long password that lets an app use your AI account. Personal Tutor uses it to write your roadmaps, lessons and answers, and your AI provider bills you directly, usually a few cents per lesson. Not sure which to pick? Google Gemini has a free tier for trying things out; Anthropic's Claude is our recommendation for the best lessons.

How do I get a key from Anthropic (Claude)?

Our recommended choice for lesson quality. Pay as you go with prepaid credit.

  1. Go to the Anthropic Console (console.anthropic.com) and sign up with your email or Google account.
  2. Open Settings, then Billing, and buy some credit. $5 to $10 is plenty to start. A Claude.ai Pro plan doesn't include API credit; it's billed separately.
  3. Open Settings, then API keys, and click Create key. Name it something like "Personal Tutor".
  4. Copy the key (it starts with sk-ant-). It's only shown once, so paste it straight into Personal Tutor.
Open the Anthropic (Claude) key page
How do I get a key from OpenAI (GPT)?

The company behind ChatGPT. The API is a separate account from a ChatGPT subscription.

  1. Go to the OpenAI Platform (platform.openai.com) and sign up or log in. A ChatGPT Plus plan doesn't include API usage.
  2. Open Settings, then Billing, and add a payment method or prepaid credit.
  3. Go to the API keys page and click Create new secret key.
  4. Copy the key (it starts with sk-). It's only shown once.
Open the OpenAI (GPT) key page
How do I get a key from Google (Gemini)?

The easiest way to try Personal Tutor: there's a free tier with daily limits.

  1. Go to Google AI Studio (aistudio.google.com) and sign in with your Google account.
  2. Click Get API key, then Create API key. If you're asked to choose a Google Cloud project, the default is fine.
  3. Copy the key (it starts with AIza).
  4. The free tier is enough to try things out. For heavier use, turn on billing in AI Studio.
Open the Google (Gemini) key page
How do I get a key from xAI (Grok)?

Pay as you go with prepaid credit.

  1. Go to the xAI Console (console.x.ai) and sign up.
  2. Open Billing and add some credit.
  3. Open API Keys and click Create API key.
  4. Copy the key (it starts with xai-). It's only shown once.
Open the xAI (Grok) key page

Then, in Personal Tutor, go to Settings, pick your provider, paste the key and click Connect. We check the key works before saving it, encrypt it, and never show it again. Keep your key private, like a password. On your provider's billing page you can set a monthly spending limit, and you can delete a key there at any time.

Your next step starts here.

Create your account, connect your AI, and have a personal roadmap in about a minute.

Personal Tutor — learn anything, from zero to expert