Comparison

SAT® vs OnePrep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SAT®

Prepare for the SAT® exam with professionally written practice questions and comprehensive study content for Math, Critical Reading, and Writing sections. Analyze your strengths, track progress, and create custom flashcards to master exam topics.

Highlights
  • Practice questions for Math, Reading, and Writing
  • Timed, full-length practice tests
  • Feedback on strengths and weaknesses
  • Flashcard library for vocabulary and grammar
  • Custom flashcard creation
  • Progress tracking of past scores
Features
Read full description

*** From the Makers of Varsity Learning Tools - Best Education App - 2016 Appy Awards *** Varsity Tutors’ SAT® Prep app for iPhone and iPad demystifies studying for this intimidating college entrance exam. Our app developers utilize professionally written questions to imitate the rigorous level of testing that the real exam provides. The SAT® Prep app for iPhone and iPad features comprehensive test and study content for the SAT®’s Math, Critical Reading, and Writing sections. Break down your time spent studying by focusing on an SAT® subject, or take timed, full-length tests to assess your general aptitude. Receive feedback analyzing your strengths in a variety of testing areas, from determining context-dependent meanings in reading passages to finding an inverse variation, and easily share your results with your friends, parents, or tutor. Unlike the optional ACT® Writing sub-test, the SAT® Writing section is mandatory. Hone your skills by studying subject-verb agreement, conjunctions, modifier placements, and proper word usage using the SAT Prep app’s flashcard library. Or, create your own flashcards using a variety of methods, like recording the answers or taking pictures of visual cues, to keep your study materials engaging and helpful. In addition, track your past scores and progress through the app’s
Tests Taken feature. Students studying for the SAT® exams can find useful information and tools at their fingertips. You’ll need to test your best for your future success, and the SAT® Prep app for iPhone and iPad can help you prepare.

About

OnePrep

Prepare for standardized tests with a comprehensive study tool. Access thousands of practice questions, realistic mock exams, and AI-powered feedback. Get personalized guidance from an AI tutor to improve your scores.

Highlights
  • Thousands of SAT-style practice questions
  • Realistic timed mock exams
  • AI-powered feedback and grading
  • Personalized study guidance
  • Progress tracking
  • Cross-device compatibility
Read full description

All your SAT® prep in one place. OnePrep is the ultimate study companion for SAT® students. Practice with thousands of SAT-style questions, realistic mock exams, and AI-powered feedback designed to match the official SAT® format. Meet Prepy AI, your personal tutor. Get instant help with difficult questions, clear explanations, and personalized study guidance anytime. Key features Thousands of SAT-style practice questions with step-by-step explanations Realistic timed mock exams Instant AI feedback and grading Progress tracking to identify weak areas Study anywhere, anytime—OnePrep works seamlessly across all your devices. Join 250k+ students worldwide already improving their SAT® scores with OnePrep. Start studying today for free. Questions? contact@oneprep.xyz Terms of Use (EULA): https://www.oneprep.xyz/terms-of-service

Screenshots

SAT®4 screens
OnePrep4 screens

Verdict

The call

SAT® and OnePrep both sit at 4.8 stars, but that hides the real split: 77% of SAT®'s written reviews are positive against 41% of OnePrep's. SAT® also leads on in-app purchases (none vs 10) and ads (none vs shown). OnePrep's advantage is update cadence (every 5 days vs every 2 months). On price, rating, ratings volume and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OnePrep sells 10 in-app purchases, starting at $28.49 per 7 days. SAT® asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for SAT® against 4.7 for OnePrep. Both are backed by a comparable volume of ratings — 1.8K and 756 respectively. Written reviews are what separate them: 77% of SAT®'s written reviews are positive against 41% of OnePrep's.

UpkeepUpdate frequency

SAT® ships an update every 2 months, OnePrep every 5 days. The most recent releases landed on November 11, 2026 and November 14, 2026 respectively.

Scorecard6 real differences · 4 level
SAT® versus OnePrep: the parameters behind the verdict, then further details
ParameterSAT®OnePrep
PriceFreeFree
Rating4.8 (1.8K ratings) — better4.7 (756 ratings)
Positive reviews76.7% of reviews — better40.7% of reviews
Number of ratings1.8K — better756
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.1
Further details — not scored
Size45 MB87 MB
Age rating4+4+
DeveloperVarsity TutorsMyDojo Inc.

Customer experience

SAT®

All ratings1,702 ratings
Positive95.0%
Neutral1.6%
Negative3.4%
Written reviews73 reviews
Positive76.7%
Neutral9.6%
Negative13.7%

OnePrep

All ratings713 ratings
Positive94.0%
Neutral2.1%
Negative3.9%
Written reviews27 reviews
Positive40.7%
Neutral7.4%
Negative51.9%

Bugs and requests

SAT®

Reported bugs

4 issues
  • App crashes when swiping up for notifications
  • Question of the day feature shows the same question repeatedly
  • Some math questions have missing information or incorrect formatting
  • Writing questions have issues with recognizing singular 'they/them' pronouns

Requested features

4 requests
  • Update content to match the new SAT format
  • Add an offline mode to download content
  • Improve navigation and allow users to select specific questions
  • Fix bugs and improve overall app stability

OnePrep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SAT®

No in-app purchases

10 purchases

OnePrep

Subscriptions4
  • OnePrep Pro (1 Week)$28.497 Days
  • OnePrep Pro (1 Month)$99.991 Month
  • OnePrep Pro (3 Months)$269.003 Months
Show 1 more
  • OnePrep Pro (1 Year)$589.001 Year
One-time6
  • OnePrep Plus Exam Pass (0-7 Days)$79.00
  • OnePrep Pro Exam Pass (0-7 Days)$89.00
  • OnePrep Pro Exam Pass (8-14 Days)$90.00
Show 3 more
  • OnePrep Pro Exam Pass (15-28 Days)$95.00
  • OnePrep Pro Exam Pass (31-44 Days)$134.99
  • OnePrep Pro Exam Pass (45-58 Days)$174.99

Questions

Is SAT® free?
SAT® is free to download, with no in-app purchases.
Is OnePrep free?
OnePrep is free to download, with in-app purchases available.
Which has better reviews, SAT® or OnePrep?
SAT® is rated higher. SAT® averages 4.8 out of 5 from 1.8K ratings, while OnePrep averages 4.7 from 756 ratings.
Do SAT® or OnePrep have ads?
OnePrep shows ads; SAT® does not.
Which is updated more often, SAT® or OnePrep?
SAT® ships an update every 2 months, and OnePrep every 5 days. Most recently, SAT® was updated on November 11, 2026 and OnePrep on November 14, 2026.

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