100 questions built from the ground up: shared Analysis & Approaches content first, then HL-only extensions, arranged from foundational to advanced across 10 units. Work top to bottom — answers lock in the moment you tap them, with an instant hint, concept tag, and worked explanation right below.
SL & HL shared contentHL only contentDifficulty rises left → right per question
BEFORE YOU START
Choose a timer length, then start. Once time runs out the test locks automatically and your score appears. You can also tap Exit & Score at any point to stop early — you'll be scored only on what you actually answered.