Comparison

Math Prep for GRE vs The BALM Primer App

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

Head to head
About

Math Prep for GRE

Master essential math formulas and equations for the GRE quantitative reasoning section. This guide covers elementary concepts, provides examples, and offers a comprehensive cheat sheet to boost your score.

Highlights
  • Essential GRE math formulas
  • Elementary mathematical concepts
  • Problem-solving examples
  • GRE Math Formulas Cheat Sheet
  • Probability and Permutation guides
  • Combination guide
Features
Read full description

Math Prep for GRE is a complete study kit for the Quantitative section: clear lessons, a full formula book, 460+ practice questions with explanations and 10 timed mock tests, all in one app. LEARN EVERY QUANT TOPIC 41 lessons cover question types and strategy, arithmetic, algebra, geometry and data analysis. Each lesson explains the key idea, shows the method step by step and works through examples, with tips on the traps test makers love. PRACTICE THAT TEACHES • 460+ questions in all four GRE formats: multiple choice, select all that apply, quantitative comparison and numeric entry • Check each answer instantly and read a worked explanation • Practice by topic, take a 10-question Quick Quiz, or work through mixed sets • Review Mistakes brings back every question you got wrong • Track answered questions, accuracy and best scores 10 TIMED MOCK TESTS 27 questions in 35 minutes, like the real section. Answers and explanations are shown at the end, with a full review of every question. FORMULA BOOK 38 pages of formulas and rules for percents, ratios, exponents, equations, inequalities, functions, triangles, circles, coordinate geometry, statistics, probability and counting, plus a one-page formula sheet and a list of common traps. STUDY IN YOUR LANGUAGE Lessons, formulas, questions and the whole app in English, Español, Português, Français, Deutsch, العربية, हिन्दी and Bahasa Indonesia. Switch language right inside the app. MADE FOR FOCUS Clean native design with dark mode, adjustable text size, saved pages and continue-where-you-left-off. ONE-TIME PREMIUM, NO SUBSCRIPTION Lessons, formulas, three practice topics, mixed sets and five mock tests are free. One purchase unlocks every topic and all ten mock tests, and removes ads. Pay once: no weekly or monthly fees. Math Prep for GRE is an independent study guide. GRE® is a registered trademark of ETS. This app is not endorsed or approved by ETS.

About

The BALM Primer App

Features
Read full description

The BALM Lungs as Tort Law Primer is an innovative legal education mobile app that utilizes visual and tactile features to provide an introductory tutorial for students as well as lay persons. The Lungs as Tort Law Primer compares the lungs in the human body to tort law in the body of law. As in human physiology, the left side of the human body is analogous to the left side of the body of law and vice versa on the right. Like the study of human anatomy, the BALM provides the user with a progressively invasive exploration of the individuals, society, and body of law that constitute the body politic The Splash Screen introduces the user to the BALM’s brand. The Home Screen establishes the “Human Body as the Body of Law” metaphor to be the model’s functional framework. The Body Screen expands the metaphor to include society in general. The Region Screen reviews the individual and examines the sum of both human and legal body parts. The Lung Screen compares the specifically named organ within the organ systems of the human body to the legal organs operation within their systems in the body of law. Lastly, the Organ Screen portrays each section of human as well as legal organ parts. Blue tutorial bubbles appear on each screen to provide navigation. Tapping the white “x” in the upper corner of a screen or bubble removes the content. Tapping the blue tutorial bubbles progress the user through the displayed screen. Tap the figure once and italicized words appear above it. Tap any italicized words or terms and definitions appear. Tap the figure twice and the next screen displays. Tap the “X” on the upper right corner of the screen and the previous screen will display. Tapping “Reset” on the Region and Organ Screens restores the initially displayed screen. The “i” and “o” buttons at the bottom of all but the Splash Screen, provide definitions and direct access to the Organ Screen.

Screenshots

Math Prep for GRE4 screens
The BALM Primer App4 screens

Verdict

The call

The clearest difference is in-app purchases: The BALM Primer App at none against Math Prep for GRE's 1. The BALM Primer App also leads on ads (none vs shown). Math Prep for GRE's advantage is update cadence (every 13 months vs every 41 months). On price, device support and iOS requirement 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. Math Prep for GRE sells 1 one-off in-app purchase. The BALM Primer App asks for nothing beyond the download.

UpkeepUpdate frequency

Math Prep for GRE ships an update every 13 months, The BALM Primer App every 41 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Math Prep for GRE versus The BALM Primer App: the parameters behind the verdict, then further details
ParameterMath Prep for GREThe BALM Primer App
PriceFreeFree
Rating4.7 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 13 months — betterEvery 41 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size11 MB19 MB
Age rating4+17+
DeveloperJakir HossainThe BALM LLC

In-app purchases

1 purchases

Math Prep for GRE

One-time1
  • Math Preparation For GRE PRO$4.99
None

The BALM Primer App

No in-app purchases

Questions

Is Math Prep for GRE free?
Math Prep for GRE is free to download, with in-app purchases available.
Is The BALM Primer App free?
The BALM Primer App is free to download, with no in-app purchases.
Do Math Prep for GRE or The BALM Primer App have ads?
Math Prep for GRE shows ads; The BALM Primer App does not.
Which is updated more often, Math Prep for GRE or The BALM Primer App?
Math Prep for GRE ships an update every 13 months, and The BALM Primer App every 41 months. Most recently, Math Prep for GRE was updated on October 26, 2026 and The BALM Primer App on October 27, 2026.

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