Start studying free

Your whole study life, in one place.

Covlo is a free hub for high-school students: resources sorted by topic, classes with your classmates, a timer that makes studying a game, and people who'll help when you're stuck.

Start studying free Explore resources
Covlo's mark, two people over an open book, floating above a round disc. Around the rim: a stack of books, a flag, a pin board, a chess clock, a speech bubble and a trophy.
Everything Covlo does, around one place.

Resources

The good stuff, sorted by topic.

Practice sets, videos, notes, playlists and methods that students actually used, pinned to the unit and topic they help with. Covlo Picks are checked by Covlo reviewers; everything else comes straight from students, with their names on it.

  • Filter by topic, by type, and by whether it's free
  • Browse without an account; save, post and join with one
  • Saving is private. Nobody is told what you saved
Browse public resources
A shelf of books labelled Practice sets, Videos, Notes, Playlists and Methods. One, Equilibrium in 12 minutes, is pulled forward with a Covlo Pick ribbon.

Study paths

Follow the route someone already took.

A path is what a student actually did in the weeks before the exam, built from the sessions they recorded, never typed in afterwards. Follow one and it becomes your own plan; their later edits never rewrite yours.

  • Find paths by course, exam year and time per week
  • Follow a 5 if you want to. You don't need a 5 to post, help or get help
  • Try a single session someone shared, then run it your way
A road winding across a table from 8 weeks out to exam day, with flags for the recorded weeks and a yellow marker walking it.

Classes

A class for your course, and one for your section.

Every AP course has a global class: everyone taking it, at any school or none, organised by the course's official units and topics. Start a class for your own section too, joined by invitation, with your current unit, your tests and your classmates' notes.

  • Joining one never joins the other
  • School classes are members-only and say they're run by students
  • Share a global find to your class with a note; the credit stays with its author
  • Test Week: put a test on the board and everything it covers comes with it
A felt board with topic 7.4 pinned in the middle, strung to the Unit 7 test, a study session, a worksheet, a resolved question and a Covlo Pick.
Everything here is pinned to topic 7.4.

Studying

A timer that only counts focus.

Start it from anything: a topic, a resource, a test, or nothing at all. Pause to answer a text and it stops. Finish, and the session saves privately first; sharing it is a separate choice, and you pick exactly who sees it.

  • Stopwatch, countdown or intervals
  • Topic-by-topic breakdown of where the time went
  • Share to your class, your followers, everyone, or nobody
A yellow chess clock: your side reads 47:16 in AP Biology, Maya's reads 52:03.
You're on the clock.

Help

Stuck? Ask people taking the same course.

Ask about a topic, a resource or a step in someone's routine, and show what you tried. Classmates explain; you add your next attempt. Only you decide when it's resolved, because a reply isn't the same as understanding.

  • Ask your class, or ask everyone
  • Offer help on topics you're good at. It's an offer, not a tutor badge
  • Not ready to ask? Say you want help, privately. Organisers only see a count once three or more classmates do
Three speech bubbles: Sam asks why adding product shifts the reaction left, Ana explains, and Sam replies that he redid the problem and got it. A yellow badge with a tick: resolved by Sam.

The fun part

Make it a game, if you want to.

Every focused minute earns 10 XP. Race the people you follow on Top Studiers, spend the Lumes you earn on themes, and book a group focus hour so nobody studies alone.

  • Top Studiers ranks focused minutes, never grades
  • Leave the board any time in settings
  • Group sessions: one start time, everyone runs their own timer
A podium: Maya first with a trophy, you second with a growing stack of yellow XP coins, Devon third.

For everyone, and for parents

Free, private by default, and made for students.

Covlo exists to make good study material and help available to everyone taking an AP course, whatever their school has. Here is how it handles students.

Privacy settings, as every new account starts
  • Who sees my postsFollowers
  • Show when I’m studyingOff
  • Suggest me as a study partnerOff
  • Show me on Top StudiersOn
Free.
Students don’t pay to study, post, read, get help or join a class. It runs in any browser, including school Chromebooks.
Study history is private.
Sessions are only seen if a student shares one, and they pick where. Class organisers can't see anyone's history.
School classes are members-only.
Joined by invitation, optionally approved, and labelled as student-run: not the school's or a teacher's page.
Asking for help stays private.
Organisers only see a count once three or more students want help on a topic, never names.
Blocking and reporting work everywhere.
A blocked account can't see their posts, in a class or anywhere else. Organisers can hide posts with a reason and escalate to Covlo.
Birthdate stays with the account holder.
No one else can read it, including other students.