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OnePrep vs Acely (2026): practice tests, question bank and price

Acely has more practice: 30 full-length SAT tests and 9,000 SAT questions, against 12 tests and 4,000+ questions on OnePrep Pro. OnePrep costs less for a year ($468 for Pro against $588), covers 40 AP subjects and has phone apps. Both have adaptive practice tests, an AI tutor, ACT practice and a free plan that needs no card.

Side by sideWhere Ashore fits

By , founder of Ashore · Updated · Sources at the bottom of the page

OnePrep vs Acely, side by side

ItemAcelyOnePrep
Price$149 a month, $297 every 3 months ($99 a month) or $588 a year ($49 a month)1Lite $420 or Pro $468 a year, billed yearly ($35 or $39 a month). Monthly and quarterly billing are also offered2
Free planNo card: a 20-question skills assessment, 1 full SAT test, 1 full ACT test and 10 practice questions. The 3-day trial of everything needs a card1No card: “1 free SAT & ACT practice test”, limited SAT, ACT and AP questions, and 10 AI tutor “orbs” a week2
Full-length SAT tests30 on every paid plan1Pro: 12. Lite: 22
Full-length ACT tests20 on every paid plan1Pro: 5. Lite: 22
SAT question bank9,000 SAT questions34,000+ SAT questions4
Adaptive scoringYes. Practice tests have an adaptive second module, like the digital SAT3Yes. Module 1 decides Module 2, then a predicted 400–1600 score4
AP7 AP exams, multiple-choice section540 subjects and 11,000+ questions. Pro grades free response with AI6,2
AI tutorAI tutor for the SAT and ACT on every plan1Preppy: 10 orbs a week free, 50 on Lite, unlimited on Pro2
PlatformsWeb (app.acely.com). We didn't find a phone app linked from acely.com1Web, Mac, iPhone and Android7
Score guarantee+200 SAT or +5 ACT, if you start at 1250 SAT (26 ACT) or lower. Conditions apply8+200 SAT, if you start at 1250 or lower. Conditions apply9

Last checked Nov 12, 2026, on each company's own site: Acely pricing, Acely SAT prep, OnePrep pricing, OnePrep Digital SAT practice tests, OnePrep apps. The AP and guarantee rows were last checked Oct 31, 2026. Prices are list prices without promotions.

Where Acely is stronger

  • More full-length tests

    30 SAT and 20 ACT tests on every paid plan, against 12 and 5 on OnePrep Pro.1,2

  • A bigger SAT question bank

    9,000 SAT questions, against OnePrep's 4,000+.3,4

  • The ACT

    Acely calls itself a preferred ACT test prep provider, and every plan covers both tests.10,1

Where OnePrep is stronger

  • Lower yearly price

    Pro is $468 a year and Lite $420, both billed yearly, against Acely's $588.2,1

  • Far more AP subjects

    11,000+ AP questions across 40 subjects, and Pro grades AP free response with AI. Acely covers 7 AP exams, multiple choice only.6,2,5

  • Phone and desktop apps

    OnePrep has apps for Mac, iPhone and Android, as well as the web.7

  • AI help on the free plan

    The free plan includes 10 AI tutor “orbs” a week; Pro is unlimited.2

Which one to pick

  • Pick Acely if

    You're taking the ACT as well as the SAT, or you want as many full-length tests and SAT questions as possible.1,3

  • Pick OnePrep if

    You want the lowest yearly price, you're also taking AP exams Acely doesn't cover, or you want to study on your phone.2,6,7

Where Ashore fits

Ashore is a third option if you're set on the SAT, or the SAT plus Calc BC, Micro, Macro, or Stats. It has less practice than either: 2,300+ SAT questions and 4 full-length tests plus a weekly weak-spot test, no ACT and no chat tutor. What it does differently is decide what you study: a 15-minute starting check ranks the question types costing you points, then each day is planned back from your test date. The starting check and a free practice day every week need no card.

Acely alternatives, including AshoreOnePrep alternatives, including Ashore
Take the free starting check

Questions

Still have a question? support@tryashore.com

It depends on what you need. Acely has more full-length tests (30 SAT and 20 ACT) and more SAT questions (9,000). OnePrep costs less for a year ($468 for Pro), covers 40 AP subjects and has phone apps.

Marteen Tang · Founder of Ashore

Marteen Tang founded Ashore and works on its SAT and AP lessons, practice and plans.

Sources

  1. 1. Acely pricing, checked Nov 12, 2026
  2. 2. OnePrep pricing, checked Nov 12, 2026
  3. 3. Acely SAT prep, checked Nov 12, 2026
  4. 4. OnePrep Digital SAT practice tests, checked Nov 12, 2026
  5. 5. Acely AP prep, checked Oct 31, 2026
  6. 6. OnePrep AP exams, checked Nov 12, 2026
  7. 7. OnePrep apps, checked Nov 12, 2026
  8. 8. Acely score improvement guarantee, checked Oct 31, 2026
  9. 9. OnePrep score improvement guarantee, checked Oct 31, 2026
  10. 10. Acely blog: Is Acely worth it?, checked Oct 31, 2026

Competitor details come from their public pages on the dates above and may have changed. Prices are list prices.

Acely is a trademark of its owner. ACT is a registered trademark of ACT Education Corp.

OnePrep and Preppy AI are trademarks of OnePrep. ACT is a registered trademark of ACT Education Corp.

Other product names are trademarks of their owners. Ashore isn't affiliated with them. AP and SAT are registered trademarks of the College Board, which is not affiliated with Ashore and does not endorse it.

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