Preparing the next route…
Syncing the interface and its latest content.
Loading Learnidex
Syncing the interface and its latest content.
Syncing checkpoint data
Unfolding the next page…
Gathering the next part of your learning journey.
Loading world map
Gathering the next part of your learning journey.
Syncing checkpoint data
Give it a goal and your sources. It builds a real curriculum — lessons, a tutor that cites, graded assignments, and mastery you can measure.
Learnidex turns any goal into a structured path — sequenced concepts, lessons that reference your own sources, and checks that make it stick.
Tell it what you want to learn and drop in PDFs, links, or notes.
It distills your sources, orders the concepts, and writes the lessons.
Work through lessons, pass checks, get graded, and watch mastery climb.
AI maps your goal into a prerequisite-ordered concept graph, then builds modules and lessons that build on each other.
Ask anything. Answers are grounded in your course materials with citations you can click back to.
Submit work and get rubric-based feedback with strengths, gaps, and a letter grade — not a participation trophy.
Checkpoint quizzes make sure a concept sticks before the next one unlocks.
Cycle mode regenerates fresh assignments each round and scales difficulty to what you've mastered.
Enroll in courses others have already built for a small credit fee — or publish your own.
Powered by best-in-class technology
Enroll in one click — quizzes, grading, and tutor included.
Real research, real sources, real grading, and a certificate at the end — at a fraction of the price, in a fraction of the time.
more affordable than the average year of a 4-year degree
Lessons are distilled from your real sources and built on proven methods — retrieval practice, spaced checks, and mastery gating.
No padded lectures or busywork. Every lesson earns its place in a prerequisite-ordered path.
Lessons and the tutor cite the materials you provide — answers you can trace, not vibes.
Rubric-based grading with real letter grades and a GPA that actually means something.
Finish a course and earn a shareable certificate of completion for your record.
Go from a goal to graded mastery in an afternoon — then keep going as far as you want.
A university degree
Learnidex
Start free. Upgrade when you want to build more.
forever
billed yearly · save 20%
billed yearly · save 17%
Cancel anytime — keep access until your period ends. Generating a course costs credits based on its size (a standard course costs 1; big source sets, simulations, and deep mode cost more). Plan credits refresh every month; one-time credit packs never expire. Your price is locked in when you subscribe — future price increases never affect an active subscription. AI Tutor is included on paid plans.
No. Everything runs on our platform — generation, grading, the tutor, and search. Just sign up and start.
Credits pay for AI generation. A standard course costs 1 credit; large source sets, interactive simulations, and deep mode add a little more — the exact cost is always shown before you generate. Enrolling in a marketplace course costs a small credit fee.
Your plan's credits replenish at the start of each billing month (they don't roll over, so a fresh allotment lands every month). Need more? One-time credit packs never expire.
Nothing, for you. Your price is locked in when you subscribe — increases only apply to new subscribers. You keep your rate for as long as your subscription stays active.
Anytime. You keep access until the end of your billing period; downgrading to free keeps your two most-recent courses available. Note that canceling gives up your locked-in price — resubscribing later uses the price current at that time.
Yes — create an organization to build invite-only private courses and bundles from your own material. You pay a small credit fee per member invite; invited members get free access to all of your organization's content.
Grading is AI-driven against an explicit rubric, with rationale and evidence for every score. The math (late penalties, letters, GPA) is deterministic.
Your goal and sources become a complete quest map with lessons, a source-citing sidekick, boss assignments, practice games, and mastery you can see.
Current campaign
Master Anything
Level 7 · Knowledge Ranger
Foundations
Cleared
Build the Core Skill
Playing now
Final Boss
Locked
AI-built
Complete courses
Cited
Source-grounded tutor
Graded
Real challenges
Synced
Web and iPhone
The structure of a serious course with the momentum of a game you want to finish.
Tell Learnidex what you want to master and add the sources you trust.
AI builds the map, lessons, challenges, study modes, and grading rubrics.
Learn, practice, submit, and watch your mastery and player record grow.
Player power-ups
Every goal becomes a prerequisite-ordered quest path instead of disconnected videos.
Ask anything and jump straight back to the source behind every cited answer.
Submit real work, earn rubric feedback, and clear graded checkpoints.
See what is locked, active, or mastered and know your next best move.
Flip, match, recall, and quiz with fast, reactive feedback.
Streaks, achievements, tiered leaderboards, and certificates make success visible.
Community arcade
Lessons, quizzes, grading, and the tutor are already inside.
Michael Espaillat · 72 lessons
Michael Espaillat · 80 lessons
Michael Espaillat · 64 lessons
Michael Espaillat · 75 lessons
Michael Espaillat · 85 lessons
Choose your power level
Subscribers unlock HyperArcade across web and mobile.
forever
billed yearly · save 20%
billed yearly · save 17%
Cancel anytime — keep access until your period ends. Generating a course costs credits based on its size (a standard course costs 1; big source sets, simulations, and deep mode cost more). Plan credits refresh every month; one-time credit packs never expire. Your price is locked in when you subscribe — future price increases never affect an active subscription. AI Tutor is included on paid plans.
Guidebook
No. Everything runs on our platform — generation, grading, the tutor, and search. Just sign up and start.
Credits pay for AI generation. A standard course costs 1 credit; large source sets, interactive simulations, and deep mode add a little more — the exact cost is always shown before you generate. Enrolling in a marketplace course costs a small credit fee.
Your plan's credits replenish at the start of each billing month (they don't roll over, so a fresh allotment lands every month). Need more? One-time credit packs never expire.
Nothing, for you. Your price is locked in when you subscribe — increases only apply to new subscribers. You keep your rate for as long as your subscription stays active.
Anytime. You keep access until the end of your billing period; downgrading to free keeps your two most-recent courses available. Note that canceling gives up your locked-in price — resubscribing later uses the price current at that time.
Yes — create an organization to build invite-only private courses and bundles from your own material. You pay a small credit fee per member invite; invited members get free access to all of your organization's content.
Grading is AI-driven against an explicit rubric, with rationale and evidence for every score. The math (late penalties, letters, GPA) is deterministic.
Your free account includes a guided starter campaign and 11 credits for whatever you want to build next.
Start playing free
