NEWBuilt for the GMAT Focus Edition

Find the crux of every mistake.

Most prep sites show you the right answer. Crux works out why you missed it, how long it cost you, and what to drill next, at a fraction of what the big courses charge.

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Projected score

After 3 weeks of drills

▲ 0 points

Example student

545of 805

Error log · filled automatically

Assumed n was positiveData Sufficiency · missed 3 times this week

Picked a strengthener on a weaken questionCritical Reasoning · misread the ask

3:40

Stayed too long on a 2:00 rates problemQuant · guessing at 2:30 would save 1:10

Misread the questionAdded percents instead of multiplyingFell for the strengthenerJumped to "together" too earlySpent 4:00 on one questionAssumed a variable was positiveMisread the questionAdded percents instead of multiplyingFell for the strengthenerJumped to "together" too earlySpent 4:00 on one questionAssumed a variable was positive

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See your gaps

Daily questions with full explanations, and your three weakest areas named.

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Measure them

Unlimited practice, a predicted score, pacing analysis, and an error log that fills itself.

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Close them

An AI coach asks what you were thinking, then builds practice around the habit that costs you points.

What other prep sites skip

Coaching that looks at how you think.

Pacing

See every second you spend

Time per question against the 2:00 target, with drills that teach when to guess and move on.

AI coach

Asks why

COACHYou were down to two. On weaken questions, check which choice breaks the link between the evidence and the claim.

Plain English

Simpler Verbal

Explanations written for non-native speakers.

The argument presupposes a causal nexus.

The argument assumes one thing caused the other.

Error log

Your misses come back until you stop missing them

Every wrong answer is filed with its cause and returns in your next practice sets.

Successive percentsback next session

Weaken: rate vs. countback next session

DS: test each statement alonemastered ✓

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Find out what's costing you points today.

Answer a few questions and get a predicted score, your weakest skills and a pacing chart.

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