7 Best GRE Prep Apps
in 2026
We compared every major GRE prep app on practice quality, pricing, and real features. Here's the honest ranking.
Last updated: May 2026
There are dozens of GRE prep apps out there, and most "best of" lists are just affiliate marketing. This guide focuses on what actually matters for your score: practice quality, question variety, score tracking, and price.
The Rankings
#1 — Best for Official Questions
ETS POWERPREP Online
The official GRE practice tests from the test maker.
Free
Web only
2 free tests
- Real retired GRE questions — the most authentic experience possible
- Free (POWERPREP Online gives you 2 full tests)
- Accurate score predictions since it uses real GRE scoring
- Only 2 free tests (paid POWERPREP Plus adds 3 more at $40 each)
- No explanations for wrong answers
- No mobile app — web only
Bottom line: Every GRE student should take the free POWERPREP tests. They're the gold standard. But 2 tests isn't enough practice for most people.
#2 — Best for Unlimited Practice
nerzia GRE Prep
AI-powered practice tests that never repeat. Real-time score predictions.
Free to start
iOS
100+ tests
AI explanations
- 100+ practice tests across Quant, Verbal, and Analytical Writing
- AI generates fresh questions every time — you'll never see the same test twice
- Predicted scores on the real 130-170 GRE scale, updated after every test
- Step-by-step AI explanations for every question
- 1,000+ vocabulary words with spaced repetition
- Free tier: 2 tests per section, no credit card
- iOS only (no Android or web version yet)
- No video lessons — purely practice-focused
- Newer app, smaller community
Bottom line: If you're the type of student who learns by doing (taking tests, reviewing mistakes, repeating), nerzia gives you more practice than any other tool on this list. The AI-generated questions mean you can take a new test every single day without seeing repeats. Try it free →
#3 — Best for Video Learners
Magoosh GRE
Video lessons + question bank. The most popular online GRE course.
$60-$100+
Web + iOS + Android
250+ video lessons
- 250+ video lessons covering every GRE concept
- 1,300+ practice questions with video explanations
- Score improvement guarantee (5 points)
- Available on all platforms
- Fixed question bank — questions repeat after a while
- No free tier beyond the vocab app
- Only 3 practice tests
Bottom line: Magoosh is the best choice if you want structured video lessons. The videos are high quality and cover everything. But the practice test volume is limited compared to nerzia. See full comparison →
#4 — Best Books + App Combo
Manhattan Prep GRE
Premium strategy guides with an app for practice.
$30-$100+
Books + iOS + Android
6 practice tests
- 8 strategy guides are among the best GRE books available
- 6 full-length practice tests included
- Strong focus on quantitative reasoning strategies
- App is mostly a companion to the books
- Expensive if you buy the full set
- No adaptive AI — same questions every time
Bottom line: If you're a book learner who wants deep strategy content, Manhattan Prep's guides are excellent. The app is a nice bonus but isn't strong as a standalone tool.
#5 — Best for Live Classes
Kaplan GRE
Live instruction, textbooks, and the biggest brand name in test prep.
$400-$1,600+
Web + Books
7 practice tests
- Live online classes with real instructors
- Comprehensive study plans and textbooks
- 7 full-length practice tests
- Very expensive — $400 minimum, $1,600+ for live courses
- Fixed question bank
- No mobile app for practice
Bottom line: Kaplan is worth it if you need live instruction and money isn't the main concern. Otherwise, you can get comparable practice for a fraction of the price. See full comparison →
#6 — Best Budget Option
GregMat+
YouTube instructor turned full GRE course. Incredible value.
$5/month
Web
Study plans
- $5/month — absurdly cheap for the quality
- Greg's verbal strategies are widely considered the best available
- Active community and study groups
- Structured 1-month and 2-month study plans
- No mobile app
- Limited practice tests (relies on ETS material)
- One-person operation — less polished than big companies
Bottom line: For $5/month, GregMat+ is an insane deal, especially for verbal strategies. Pair it with nerzia for unlimited practice and you have a complete prep stack for under $15/month.
#7 — Best for Score Guarantee
Princeton Review GRE
Premium courses with a strong score guarantee.
$200-$2,000+
Web + Books
8 practice tests
- Score guarantee: hit your target or get your money back
- 8 full-length practice tests
- In-person and online class options
- Expensive — on par with Kaplan
- The "guarantee" has strict conditions
- No standalone app
Bottom line: Princeton Review is a solid option if the score guarantee matters to you and you can afford the price. But the strict conditions on the guarantee are worth reading carefully.
Our Recommendation
For most students, the best GRE prep stack in 2026 is:
1. ETS POWERPREP (free) — take the 2 official tests to benchmark your score
2. nerzia (free to start) — unlimited practice tests for daily drilling
3. GregMat+ ($5/month) — verbal strategies and study plans
Total cost: $5/month. That beats a $1,600 Kaplan course for most self-motivated students.
TRY NERZIA FREE
100+ practice tests. AI explanations. Score predictions. Free to start.
FAQ
What is the best GRE prep app in 2026?
It depends on your study style. For practice-focused learners, nerzia offers the most tests (100+) with AI-generated questions. For video learners, Magoosh has the best lessons. For official questions, ETS POWERPREP is essential. Most students benefit from combining 2-3 tools.
Can I prep for the GRE for free?
Yes. ETS POWERPREP Online gives you 2 free full-length practice tests with real GRE questions. nerzia's free tier gives you 2 additional tests per section with AI explanations. Magoosh offers a free vocabulary flashcard app. Combined, that's a solid free prep foundation.
How long should I study for the GRE?
Most students need 4-12 weeks of focused prep. If your diagnostic score is close to your target (within 5 points), 4-6 weeks of daily practice may be enough. If you need a 10+ point improvement, plan for 8-12 weeks. Consistency matters more than total hours.
Is Magoosh or Kaplan better for the GRE?
Magoosh is better value ($60 vs $400+) and has more video content. Kaplan is better if you want live instruction. For pure practice, nerzia beats both with 100+ AI-generated tests starting at free.
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