OnePrep
OnePrep: A multi-exam prep toolkit pairing adaptive tests and study planning with AI explanations. Ranked #56 of 125 in Exam Prep Apps by our editors (3.3/10); pricing: Free plan; best for candidates wanting adaptive tests with an AI tutor.
At a glance
- Editor score3.3 / 10
- PricingFree plan
- Best forCandidates wanting adaptive tests with an AI tutor
- Free planYes
- Paid from$148.30 one-time
- Full-length mock testsYes
- Facts checked23 Sep 2026
Where it wins
- 4,000+ expert-written questions on Plus and Pro
- Adaptive full-length tests, with up to six on Pro
- Study planner, score analytics and AI question walkthroughs
Where it doesn't
- Paid pricing varies by exam date
- Free includes just one full-length practice test
- Plus includes only two full-length practice tests
Our verdict on OnePrep
OnePrep brings Digital SAT, ACT and AP preparation into one platform for students, families, tutors and schools. Its mix of topic-based questions, adaptive full-length tests, a test-date study planner and AI-supported explanations suits candidates who want practice and planning in the same toolkit. A diagnostic test predicts a score, while question filtering and missed-question tracking help direct review. Access is available on web, iOS and Android.
The plans differ chiefly in practice volume and AI access. Free includes 500 expert-written questions, one full-length test, 20 orbs and 10 more per week. Plus costs $148.30 one-time and adds 4,000+ questions, two full-length tests, 50 orbs per week and three question rush sessions per week. Pro costs $165 one-time, with the same 4,000+ questions plus 300+ challenge questions, six full-length tests, unlimited Preppy AI chat and advanced analytics. The published pricing page ties prices to exam date; its October SAT access was available through October 4, 2026. The one-time prices make the exam date relevant to comparing plans.
The strongest fit is a candidate who benefits from adaptive practice, diagnostic score prediction and a structured plan, particularly one who expects to use the AI tutor or review analytics. The free plan offers a way to start with a smaller question set, but its single full-length test may not suit someone seeking repeated mock exams. Plus provides more questions but only two tests; candidates who prioritize frequent full-length practice or unlimited AI chat may prefer Pro. OnePrep focuses on exam preparation rather than a general study workflow, so it is less suitable for learners seeking tools outside Digital SAT, ACT and AP prep.
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OnePrep pricing
All 3 OnePrep plans and prices →
OnePrep fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $148.30 one-time |
| Question bank | 4000 questions |
| Full-length mock tests | Yes |
| Revision plans | Yes |
| Adaptive practice | Yes |
| Exam scope | Multiple_exam_types |
| Platform support | Web, iOS, Android |
| Deployment | Cloud, Mobile |
| Platforms | Web, iOS, Android |
| Compliance & security | GDPR |
| Support | Email, Live chat, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan (source) |
| Website | oneprep.com |
| Facts checked | 23 Sep 2026 |
Alternatives to OnePrep
- Kaplan Test PrepA broad exam-prep portfolio pairing free practice with courses, adaptive tools, and tutoring.8.9
- IELTS ReadyA web-based IELTS prep option with free practice and Premium tied to a British Council booking.8.8
- AAMC MCAT Official PrepAAMC’s web-based MCAT prep pairs free exams with paid question banks and practice tests.8.7
See all OnePrep alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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