Notes from someone who actually sat the exam.
Exam guides from people who passed, free flashcards for anything you're studying, and a campus that remembers your streak. Free while in beta — no card required.
9
Students
4
Decks created
375
XP earned campus-wide
68+
Flashcards
The course catalog
Six ways to make it stick.
Every deck — yours or ours — gets all six, free.
Course reader
The full written guide, section by section, with exam alerts where people actually slip.
Flashcards
Flip, shuffle, star the hard ones — keyboard-first.
Learn
Adaptive rounds: multiple choice, then typed recall, until it sticks.
Match
Clear the pair board against the clock. Beat your best.
Asteroids
Definitions fall from space. Type the term before impact.
Practice tests
Exam-style scenarios, graded with full explanations.
Free forever
Studying something else?
Type it, paste it, or upload a CSV — any subject becomes a deck with all six modes. Publish it to Explore, or study what classmates already shared.
AI study tools
coming to campusAI that studies you back.
✨ AI study tools
previewThree tools, one study session.
A quick look at what Pro & Dean's List AI actually does — turn notes and PDFs into decks, get unstuck with a tutor, and follow a plan built for your exam date.
AI Tutor
PDF → deck
A lecture PDF, drafted into flashcards in seconds.
Study plan
Campus after dark
After dark, the campus keeps score.
Every study session pays xp. Xp becomes levels, levels become ranks, streaks stay lit with freezes, and a weekly league of thirty decides who climbs. All of it earned at a desk.
Your character
100+ wardrobe pieces · 30+ auras · 15 campus backdrops
9 mutation effects × 8 colors
The ladder
Nine ranks: Freshman → Student → Scholar → Expert → Master → Professor → Grand Professor → Luminary → The Pantheon — ten seats at the top, contested. Three divisions per rank, climbed by leveling, never by paying.
Gold league · Semester 1, week 3
- 1nadia_reads4,120 xp
- 2you3,987 xp
- 3kai_studies3,610 xp
Weekly cohorts of ~30, Bronze → Diamond. Top finishers promote Sunday night — and five site-wide leaderboards run beside the leagues.
23-day streak
1,240 chalkChalk is earned by studying; Gold Stars are bought. Both spend on cosmetics only — nothing on the ladder is for sale.
Campus events
Five-minute, site-wide surges. Everyone online rides the same boost.
Study crates
Crates are earned at a desk and drop cosmetics only. Every drop rate is published, always.
Faction war
Sphinx
Hydra
BehemothSlay the weekly boss.
Pledge a faction for the semester. These are 3 of the 9 painted bosses — a new one spawns every week, every correct answer chips its health down, and the whole faction splits the chalk when it falls.
Party games
Bring the whole class.
Host a room, put the code on the projector, and play any deck together — nine live-multiplayer games, up to 20 players.
Asteroids Battle Royale
up to 20Definitions fall on everyone at once. Last ship flying wins.
Impostor
5–20One player never saw the terms. Answer, discuss, vote them out.
Liar’s Bluff
3–20Write a fake definition convincing enough to fool the room.
Confidence Auction
2–20Wager chips on every question — big talk costs 50.
Vault Heist
co-opAnswer fast as a team and crack the vault before the alarm trips.
Territory Conquest
2–8 · teamsAnswer to attack, defend, and hold the hex map.
Speed Duel
1v1A straight race to ten correct. No hiding.
Survivor
up to 20Wrong answers drop first, then the slowest. Outlast the room.
Relay
teamsA baton race — your team moves as fast as its current runner.
Guides & marketplace
Written by people who passed.
Official guides come from real exam experience. Community guides come from writers who applied, got vetted, and built theirs in the Studio.
AZ-104: Microsoft Azure Administrator
The complete study guide — strategy, all five domains, question patterns, and a rapid-recall sheet. Built from real exam experience.
ACT: Complete Prep
Section-by-section strategy from a 35 scorer. Coming soon.
SAT & PSAT: Complete Prep
Digital SAT strategy, math shortcuts, and reading tactics. Coming soon.
Become a writer
Write for the campus.
Passed something hard? Turn your notes into a guide anyone can buy.
Apply
A short application, reviewed by a person — not a form that disappears.
Build in the Studio
A WYSIWYG editor for sections, flashcards, practice questions, videos, and a study plan. You edit the exact page students see.
Get paid coming to campus
Keep 70% of every sale — 80% when buyers arrive through your own referral link. Paid out through Stripe.
Questions
Straight answers.
Is Professor Lockin free?
Yes. Decks, all 5 study modes, party games, and leaderboards are free forever — no credit card, no trial that expires.
What do I ever pay for?
Optional exam guides written by people who passed, and — once live — a Pro tier for AI tools, ad-free, and cosmetics. Never for ranked power.
What are party games?
9 live multiplayer study games. One room code, any deck, up to 20 players — great for a classroom or a group study session.
Where do the guides come from?
The founder's own passed exams, plus a growing community marketplace where vetted authors keep 70–80% of every sale.
Can teachers use it?
Classes let a teacher share a join code, assign decks and guides, and see consent-based progress — students opt in before anything is shared.
Is my data private?
Read the full policy at /privacy. You can export or delete your account data at any time from /account.
Stop re-reading. Start locking in.
Read the guide, drill it across six modes, and walk in ready — the streak keeps you coming back.