Skip to content
crambox
Start

Exams start May 3, 2027

Free AP® practice for every unit.

Unit tests, endless multiple choice, FRQs with the real rubrics, and a study guide for every topic. It all runs on a practice screen that looks like the one on test day.

Start studying See all courses

No account needed. Sign up only to save your progress.

Jump into a course

Every unit gets its own tests.

Each unit has 6 fixed unit tests you can retake, plus endless practice that pulls new questions every time and brings back the topics you miss.

  • Unit tests. 15 questions, timed like the real exam, with a score at the end.
  • Endless practice. Pick a unit or topic and keep going. No two sets are the same.
  • FRQs. SAQs, LEQs, DBQs and Gov FRQs, with the official scoring rules.
  • Study guides. One for every topic, with drawings that explain the hard parts.

AP World · Unit 3

Land-Based Empires

12–15% of exam

Unit tests

  • Test 113/15
  • Test 29/15
  • Test 315 Qs
  • Test 415 Qs
  • Test 515 Qs
  • Test 615 Qs

Keep going

Endless practice

New questions every set. Focus: 3.2 Administration

Unit 3 SAQ

3 parts, scored with the rubric

3.1 Empires Expand3.2 Empires: Administration3.3 Empires: Belief Systems3.4 Comparison in Land-Based Empires

Study content for every AP® course

History opens first. The rest open one course at a time, and each one gets the full set: tests, FRQs and guides.

History and social sciences

Math and computer science

  • AP PrecalculusComing
  • AP Calculus ABComing
  • AP Calculus BCComing
  • AP StatisticsComing
  • AP Computer Science AComing
  • AP Computer Science PrinciplesComing

Sciences

  • AP BiologyOpen
  • AP ChemistryOpen
  • AP Environmental ScienceComing
  • AP Physics 1Coming
  • AP Physics 2Coming
  • AP Physics C: MechanicsComing
  • AP Physics C: Electricity and MagnetismComing

English and capstone

  • AP English Language and CompositionComing
  • AP English Literature and CompositionComing
  • AP SeminarComing
  • AP ResearchComing

Arts

Not a focus. Crambox is centered on STEM and social science, so these courses stay listed but are not being built.

  • AP Art HistoryNot a focus
  • AP Music TheoryNot a focus
  • AP 2-D Art and DesignNot a focus
  • AP 3-D Art and DesignNot a focus
  • AP DrawingNot a focus

World languages and cultures

Not a focus. Crambox is centered on STEM and social science, so these courses stay listed but are not being built.

  • AP Chinese Language and CultureNot a focus
  • AP French Language and CultureNot a focus
  • AP German Language and CultureNot a focus
  • AP Italian Language and CultureNot a focus
  • AP Japanese Language and CultureNot a focus
  • AP LatinNot a focus
  • AP Spanish Language and CultureNot a focus
  • AP Spanish Literature and CultureNot a focus

Practice on the screen you'll test on.

The AP exams are taken in Bluebook, so our practice screen works the same way. By May the tools feel normal.

  1. 1Highlight lines in the source
  2. 2Cross out answers you've ruled out
  3. 3Mark questions to come back to
  4. 4Read one line at a time
Try a practice set
Unit 1 practice4:21 1 4
1 3 2
A
B
C
D
Champa rice(from Vietnam)ripens fast,handles drought2 harvestsa yearmore food,more peoplebigger cities,busier marketspaper money,long-distance tradefood surplus → population growth → commercial economy
From the AP World Topic 1.1 guide: why Song China's economy grew.

Study guides you can actually picture.

Every topic guide covers what the course says you need to know, in plain words. Drawings show the cause and effect, and a short quiz at the end checks that it stuck.

Read a sample guide

Questions

Is it actually free?

Yes. Every question, test and guide is free, with no trial and no paywall later. You only need an account if you want your progress saved across devices.

Are these real AP questions?

No. College Board keeps its multiple-choice questions secure, so nobody can legally post them. Ours are written to match the real format: same question types, same kinds of sources, same timing. We link to the official free-response questions on AP Central.

Who checks the answers?

Every question is checked by a second model that answers it without seeing the key, and by a script that looks for problems. If you still find a mistake, press Report on the question and we fix it.

Which courses are ready?

AP World History, APUSH and AP Gov come first. The other courses are on the list below and open one at a time.

Pick a unit and start.

Start studying