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Best SAT/ACT Prep Courses Compared

A strong SAT or ACT score is still one of the most controllable factors in your college application. Even at test-optional schools, a high score can unlock merit scholarships worth tens of thousands of dollars. The good news is that effective prep does not have to be expensive. Free resources from Khan Academy and the College Board rival some paid options, and mid-range online platforms often deliver results comparable to premium tutoring.

This guide compares the most widely used prep courses — free and paid — so you can choose the one that fits your budget, learning style, and timeline.

Comparison Table: Top SAT/ACT Prep Resources

Course	Cost	Format	SAT, ACT, or Both	Avg. Score Improvement (Claimed)	Best For
Khan Academy (Official SAT Prep)	Free	Online (self-paced)	SAT	60+ points (College Board data)	Budget-conscious students; self-motivated learners
College Board Bluebook (Digital SAT Practice)	Free	Online + app (self-paced)	SAT	N/A (official practice tests)	Familiarizing with the digital SAT format
ACT Academy	Free	Online (self-paced)	ACT	N/A (official practice tool)	ACT-specific free practice and diagnostics
Princeton Review	$900–$2,500+	Online, in-person, or hybrid	Both	100+ points SAT / 3+ points ACT	Students who want structured classes with live instruction
Kaplan	$800–$2,200+	Online, in-person, or hybrid	Both	100+ points SAT (guaranteed or money back)	Students who value score-improvement guarantees
Magoosh	$100–$200	Online (self-paced)	Both	100+ points SAT / 4+ points ACT	Students seeking affordable, comprehensive video lessons
PrepScholar	$400–$900	Online (self-paced + customized plan)	Both	160+ points SAT / 4+ points ACT	Students who want an adaptive, algorithm-driven study plan
Varsity Tutors	$50–$200+/hr	Online or in-person (1-on-1 tutoring)	Both	Varies (personalized)	Students who need individualized attention or have significant score gaps

Prices are approximate and may vary by package, location, and promotional offers. Score improvement claims are self-reported by the companies and are not independently verified.

Free vs. Paid: What You Actually Get

Free Resources

Khan Academy is the gold standard for free SAT prep. Developed in partnership with the College Board (the organization that makes the SAT), it offers diagnostic quizzes, targeted practice, full-length practice tests, and video explanations — all for zero cost. College Board research found that students who completed 20 or more hours of practice on Khan Academy saw an average increase of over 100 points compared to students who did not use the platform.

College Board Bluebook is the official practice app for the digital SAT. It simulates the exact testing interface, adaptive question delivery, and timing you will encounter on test day. If you are taking the digital SAT, this is essential — not optional.

ACT Academy provides similar functionality for the ACT: personalized practice recommendations, full-length practice tests, and question-level feedback tied to the actual exam.

For many students, these free tools are genuinely sufficient. If you are disciplined, have a clear study schedule, and are starting from a reasonably strong baseline, free resources can get you to your target score.

Paid Resources

Paid courses add several things that free options lack:

Structure and accountability. Live classes, scheduled sessions, and homework assignments keep you on track.
Expert instruction. Trained instructors can explain concepts in ways that static videos cannot, and they can address your specific weaknesses in real time.
Score guarantees. Companies like Kaplan and Princeton Review offer money-back guarantees if your score does not improve by a specified amount.
Personalized tutoring. One-on-one formats (Varsity Tutors, Princeton Review’s private tutoring tier) tailor every session to your needs.

The trade-off is cost. Premium packages from Princeton Review and Kaplan can exceed approximately $2,000, and private tutoring can run into the thousands depending on the number of hours.

When to Invest in Paid Prep

Paid prep is most likely worth the investment when:

You struggle with self-discipline. If you know you will not follow through on a self-paced plan, live instruction adds the accountability you need.
You have a significant score gap to close. Moving from 1050 to 1350 on the SAT typically requires more intensive, targeted work than a free platform alone can provide.
You are aiming for a specific scholarship threshold. Some merit scholarships have hard score cutoffs. If you are within striking distance and the scholarship is worth $20,000 or more per year, spending $1,000 on prep is a sound financial decision.
You have already exhausted free resources. If you completed Khan Academy and hit a plateau, a paid course with different instructional approaches may help break through.

When Free Prep Is Enough

Free prep is often sufficient when:

You are a self-directed learner who follows through on study plans.
You are starting from a strong baseline and need only a modest improvement.
You have three or more months before your test date and can accumulate hours gradually.
Your family’s budget does not allow for paid options — and that is completely fine. Thousands of students earn top scores every year using only free materials.

How to Study Effectively Regardless of Resource

The platform matters less than the process. No matter which course you choose, follow these principles:

Take a full-length diagnostic test first. You need to know your starting score and your weakest areas before you begin studying.
Focus on your weaknesses, not your strengths. Spending time on topics you already know feels productive but does not move your score.
Practice under test-like conditions. Time yourself, sit at a desk, and minimize distractions. Simulate the real experience as closely as possible.
Review every mistake thoroughly. Do not just check the correct answer — understand why you got it wrong and how to avoid the same error next time.
Space your study sessions. Research on learning science consistently shows that shorter, more frequent sessions outperform marathon cram days.
Take at least three to four full-length practice tests before your real test date, spaced at regular intervals, to build stamina and track improvement.

Key Takeaways

Free resources — especially Khan Academy and College Board Bluebook — are excellent and sufficient for many students.
Paid courses add structure, accountability, and personalized instruction, which are valuable if you need them.
Score improvement claims from prep companies are self-reported. Your actual gain depends on your starting point, effort, and study consistency.
The best prep course is the one you will actually use consistently for eight or more weeks.

Next Steps

Take a free diagnostic test through Khan Academy (SAT) or ACT Academy (ACT) to establish your baseline.
Read our SAT vs. ACT guide if you have not yet decided which test to take.
Explore SAT Score Requirements by College to set a concrete target score based on your college list.
Check whether your target schools are test-optional and decide whether submitting a score strengthens your application.

CollegeWiz is an independent resource. We may receive compensation from some prep course providers through affiliate partnerships, but editorial rankings and recommendations are based on research, publicly available data, and student feedback. Prices and features are subject to change. Verify all admissions data with the institution directly.