Comparison

iMathGenius vs Vocab Express

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

Head to head
About

iMathGenius

This interactive math game enhances mathematical skills through engaging challenges. It offers a wide range of operations and concepts, from basic arithmetic to advanced calculus, with difficulty levels suitable for all ages. Track progress with summary reports and unlock images of mathematicians as rewards.

Highlights
  • Multiple difficulty levels (Kindergarten to Pre-College)
  • Covers addition, subtraction, multiplication, division
  • Includes geometry, algebra, calculus, and probability
  • Reward points system based on age and difficulty
  • Summary performance reports
  • Unlockable mathematician images
Features
Read full description

iMathGenius is a math test game which aims to improve a player's math skill by playing an interactive game. # MAIN FEATURES: --------------------------- ◉ One of most challenging and comprehensive math game. ◉ Difficulty levels span from Kindergarten, 1st grade, 2nd grade, 3rd grade, up to Pre-College level. ◉ Number operations like addition, subtraction, multiplication, division; number comparison; number serial; decimal and fraction operation. ◉ Unit conversion; geometry; trigonometry; algebra; logarithm; numerical power and root. Advanced tests also include complex number operation; number set theory; statistics theory; linear and quadratic equation; simple derivatives and calculus; and probability theory. ◉ Reward points awarded each time is based on the age of the player and difficulty level being chosen. ◉ After the test, a summary report can be displayed showing the player’s overall test performance. ◉ Based on the total reward points, an image of a great mathematician initially covered by an array of 10x10 tiles is displayed. ◉ Certified by Educational App Store: https://www.educationalappstore.com/app/imathgenius If a player can regularly play the game, his or her math skill will greatly improve over time. We, as this App’s developers, love to hear from your comments about this App and future improvement. Your feedback is the key to the success of this App. Thank you!

About

Vocab Express

Learn vocabulary on the go with this mobile app. Access all your learning lists, track progress, and prepare for exams with structured revision tools. Native speaker audio aids pronunciation.

Highlights
  • Mobile access to learning lists
  • Real-time class scoreboards
  • Structured vocabulary expansion
  • Exam preparation and revision
  • Native speaker audio for pronunciation
  • Progress monitoring and challenging word focus
Features
Read full description

Please note that this app requires an active Vocab Express account. The Vocab Express app allows you to access your account with us from your mobile device. It gives you complete access to all your lists so you can learn vocabulary on the move, and not only that, if you are a school user you can also view your class scoreboards in real-time and keep up to date with the latest scores! Vocab Express is an engaging, highly motivating learning application ideal for structured independent vocabulary expansion and exam preparation. It allows you to: Build up core vocabulary & terminology rapidly through pre-loaded vocabulary and terms from major exam boards and text books, categorised into bite-sized chunks of words for easy learning. Prepare for exams and tests methodically: Vocab Express provides a clear and effective structure for your exam revision and homework timetable. In addition the native speaker audio assists pronunciation in speaking and listening exercises. Monitor your learning in real-time so you can evaluate your progress. The application also encourages you to focus on vocabulary that you are finding more challenging.

Screenshots

iMathGenius4 screens
Vocab Express3 screens

Verdict

The call

iMathGenius and Vocab Express both sit at 5.0 stars, but that hides the real split: 100% of iMathGenius's written reviews are positive against 17% of Vocab Express's. Vocab Express's advantage is price (Free vs $2.99) and iOS requirement (7.0 vs 15.6). On rating, ratings volume, update cadence 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

Vocab Express is free to download; iMathGenius costs $2.99 up front. 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 — 5.0 for iMathGenius against 5.0 for Vocab Express. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 100% of iMathGenius's written reviews are positive against 17% of Vocab Express's.

UpkeepUpdate frequency

iMathGenius ships an update every 9 months, Vocab Express every 13 months. Both last shipped on November 1, 2026.

Scorecard4 real differences · 6 level
iMathGenius versus Vocab Express: the parameters behind the verdict, then further details
ParameteriMathGeniusVocab Express
Price$2.99Free — better
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews — better17.2% of reviews
Number of ratings12 — better
Update frequencyEvery 9 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.67.0 — better
Further details — not scored
Size6 MB13 MB
Age rating4+4+
DeveloperDuo Pisceses, Inc.HarperCollins Publishers Ltd

Customer experience

iMathGenius

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews33 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Vocab Express

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews58 reviews
Positive17.2%
Neutral6.9%
Negative75.9%

Bugs and requests

iMathGenius

Not enough reviews yet to summarise bugs or requests.

Vocab Express

Reported bugs

12 issues
  • App crashes on opening
  • Stuck in launch learning
  • Cannot get out of launch learning
  • Network error when starting app
  • Internet problem despite connection
Show 7 more
  • App closes mid-test and shows unremovable pop-up
  • Leaving test causes uncloseable window
  • App is broken after closing mid-test
  • App crashes frequently
  • Leaderboard/scoreboard won't open
  • Forced into portrait mode
  • Keyboard is tiny

Requested features

8 requests
  • Allow 2 tries per task
  • Matchup challenge like website
  • Option for easy restarts
  • Allow continuation after leaving test
  • Fix Spanish to Spanish listening
Show 3 more
  • Fix Spanish to English button issue
  • Improve quiz style for long-term memory
  • Make competitions visible on app

In-app purchases

None

iMathGenius

No in-app purchases

None

Vocab Express

No in-app purchases

Questions

Is iMathGenius free?
iMathGenius costs $2.99, with no in-app purchases.
Is Vocab Express free?
Vocab Express is free to download, with no in-app purchases.
Which has better reviews, iMathGenius or Vocab Express?
iMathGenius and Vocab Express are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do iMathGenius or Vocab Express have ads?
Neither iMathGenius nor Vocab Express shows ads.
Which is updated more often, iMathGenius or Vocab Express?
iMathGenius ships an update every 9 months, and Vocab Express every 13 months. Most recently, iMathGenius was updated on November 1, 2026 and Vocab Express on November 1, 2026.

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