Comparison

GRE Math Knight vs GRE Vocabulary Builder

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

Head to head
About

GRE Math Knight

Practice GRE math concepts by battling monsters. This game covers arithmetic, algebra, geometry, and data analysis, with formula scrolls and mini-games to enhance learning. Become a GRE math knight and save the kingdom.

Highlights
  • GRE math concept practice
  • Arithmetic, algebra, geometry, data analysis
  • Formula scrolls
  • Mini-games
  • Monster battling gameplay
Features
Read full description

Our kingdom is held hostage by evil monsters whose only weakness is GRE math! Free to start: play the Swamp and Training free, then unlock the Desert, Plains and Tundra with a one-time purchase. No subscription, no ads. In GRE Math Knight, you'll hone your math skills by practicing the most commonly tested GRE math concepts. First, build your skills on the training ground, where you can drill the basics like mental math, fractions, percents, and more, then travel to four different biomes to solve arithmetic, algebra, geometry, and data analysis GRE math questions in order to defeat the monsters. You'll find scrolls with math formulas along the way to aid you in your quest, and fun games to play to break up your studying. Can you save the kingdom and become a true GRE math knight?

About

GRE Vocabulary Builder

Prepare for the GRE with over 1,300 essential words and a comprehensive study guide. Interactive flashcards, audio lessons, and progress tracking help you master vocabulary and understand the test structure. Study offline anytime, anywhere.

Highlights
  • 1300+ GRE words
  • Interactive flashcards
  • GRE study guide
  • Audio-enabled lessons
  • Progress tracking
  • Offline mode
Features
Read full description

Master over 1,300 essential GRE® words with interactive flashcards and a complete GRE® study guide! Improve your vocabulary and learn every word you need to know for the GRE® step by step with different difficulty levels. STUDY GUIDE Learn more about the GRE® test, the scoring system, the Analytical Writing, Verbal Reasoning, Quantitative Reasoning and question categories. Get tips on how to get the highest score! VOCABULARY FLASHCARDS More than 1,300 essential words for the GRE® carefully picked by expert tutors. Use the Smart Round for personalized flashcards generated by our learning algorithm. JUST LISTEN! Use the audio-enabled lessons and easily follow each paragraph, word by word with better concentration. TRACK TEST & STUDY PROGRESS Keep track of your progress through the chapters and lessons. Easily pick up where you left off with the Continue Studying shortcut. FULL OFFLINE MODE Study on the go! Use the app wherever you go without an internet connection, and still access all the lessons, flashcards and words. OTHER FEATURES: - Customizable Study Reminders - Dark Mode Support (with automatic switch) - Listen To Glossary Words Pronunciations Feedback on the app, the content, or the questions? We always would love to hear back from you! You can reach us at hello@reev.ca. Love the app? Please take a moment to leave a review and let us know what you think. *GRE® is a registered trademark of the Educational Testing Service (ETS) in the United States and other countries. This app is not endorsed by the ETS.

Screenshots

GRE Math Knight4 screens
GRE Vocabulary Builder4 screens

Verdict

The call

The clearest difference is monetization model: GRE Vocabulary Builder at free against GRE Math Knight's paid. GRE Vocabulary Builder also leads on review sentiment (75% vs 53%) and iOS requirement (13.0 vs 15.0). GRE Math Knight's advantage is update cadence (monthly vs every 4 months). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for GRE Math Knight against 4.6 for GRE Vocabulary Builder. Both are backed by a comparable volume of ratings — 53 and 113 respectively. Written reviews are what separate them: 53% of GRE Math Knight's written reviews are positive against 75% of GRE Vocabulary Builder's.

UpkeepUpdate frequency

GRE Math Knight ships an update monthly, GRE Vocabulary Builder every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
GRE Math Knight versus GRE Vocabulary Builder: the parameters behind the verdict, then further details
ParameterGRE Math KnightGRE Vocabulary Builder
PriceFreeFree
Rating4.5 (53 ratings)4.6 (113 ratings) — better
Positive reviews53.3% of reviews75.0% of reviews — better
Number of ratings53113 — better
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size133 MB71 MB
Age rating9+4+
DeveloperVince Kotchian Test PrepReev Tech Inc.

Customer experience

GRE Math Knight

All ratings52 ratings
Positive90.4%
Neutral1.9%
Negative7.7%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

GRE Vocabulary Builder

All ratings113 ratings
Positive91.2%
Neutral2.7%
Negative6.2%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

In-app purchases

None

GRE Math Knight

No in-app purchases

None

GRE Vocabulary Builder

No in-app purchases

Questions

Is GRE Math Knight free?
GRE Math Knight is free to download, with no in-app purchases.
Is GRE Vocabulary Builder free?
GRE Vocabulary Builder is free to download, with no in-app purchases.
Which has better reviews, GRE Math Knight or GRE Vocabulary Builder?
GRE Vocabulary Builder is rated higher. GRE Math Knight averages 4.5 out of 5 from 53 ratings, while GRE Vocabulary Builder averages 4.6 from 113 ratings.
Do GRE Math Knight or GRE Vocabulary Builder have ads?
Neither GRE Math Knight nor GRE Vocabulary Builder shows ads.
Which is updated more often, GRE Math Knight or GRE Vocabulary Builder?
GRE Math Knight ships an update monthly, and GRE Vocabulary Builder every 4 months. Most recently, GRE Math Knight was updated on November 7, 2026 and GRE Vocabulary Builder on November 3, 2026.

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