Digital SAT · Adaptive practice
Train for the test.
Perform at your peak.
PrepApex finds the skills costing you points and drills exactly those, with original questions written in the format of the real exam and score estimates you can trust.
- ✓ 0 original questions
- ✓ 30 skills on the official blueprint
- ✓ Timed modules that mirror the exam
Though the naturalist Maria Sibylla Merian is remembered chiefly for her paintings of insects, her field notebooks reveal a mind of remarkable : alongside sketches of caterpillars she recorded soil conditions, rainfall, and the local names of plants, treating each observation as a thread in a larger fabric.
Which choice completes the text with the most logical and precise word or phrase?
Diagnostic
24 questions, 30 minutes, a plan
Adaptive study
Every answer re-targets your drills
Timed modules
27 R&W · 22 Math, exam pacing
Honest analytics
Readiness that admits what's untested
How it works
Three modes. One system that learns you.
Most prep makes you do everything. PrepApex measures first, then spends your time where the points are.
01
Diagnose
A 24-question diagnostic stratified across every domain of the Digital SAT. You leave with a score range and a ranked list of weak skills, not a vague percentile.
02
Adapt
Study mode chooses each next question from your weakest, most heavily-tested skills, at a difficulty that stretches without discouraging. Missed items come back for spaced review.
03
Perform
Timed modules reproduce the real module lengths and clocks, so pacing becomes a habit before test day. Every module updates your readiness and score estimate.
Pricing
Start free. Upgrade when it's working.
The diagnostic and a daily set of practice questions are free, forever. A Season Pass covers a full prep season, and Parent Insights adds the view parents ask for.
Free
$0
No card. No expiry.
- ✓24-question diagnostic
- ✓10 adaptive questions a day
- ✓Explanations on every question
Pro · Season Pass
$249$399
6 months · $41.50 a month · or $49 monthly
- ✓Unlimited adaptive practice
- ✓Timed R&W and Math modules
- ✓Full analytics and score trend
- ✓Skill drills and spaced review
Pro + Parent Insights
$399$599
6 months · or $79 monthly
- ✓Everything in Pro for the student
- ✓Parent dashboard for up to 5 students
- ✓Weekly progress email
Schools & tutors
Bring PrepApex to your students.
$99 per student per semester, or $169 for the school year, for cohorts of 10 or more, with skill-level reporting you can act on in class.
Questions
Good to know
Are these real SAT questions?+
No. Every item on PrepApex is original, written to the Digital SAT's published domains, skills, formats, and timing. We never copy College Board material.
How accurate is the score estimate?+
It's an estimate built from difficulty-weighted accuracy, shown as a range that narrows as you answer more. It is not an official score and we never promise a specific result on test day.
Who is PrepApex for?+
Students preparing for the Digital SAT, typically grades 10–12, and the parents, tutors, and schools supporting them. Users must be 13 or older, or have a parent create the account.
Can I cancel Pro?+
Yes, any time from your billing page. Your access continues to the end of the period you paid for, and your data stays.
Do you use my data for anything else?+
No. Your practice data exists to power your own analytics. We don't sell it or use it for advertising. See the Privacy Policy for the full picture.