Comparison

PPF vs Math Formulas & Symbols

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

Head to head
About

PPF

Features
Read full description

The OtoVIS Pterygopalatine Fossa (PPF) module offers an immersive and interactive simulation to explore the complex anatomy of the pterygopalatine fossa. This app is designed for medical professionals and students, providing a comprehensive understanding of the neurovascular structures housed in this challenging area of the skull base. Key Features: - Detailed 3D model of the left pterygopalatine fossa - Contextual placement within the endonasal approach - Interactive tools to explore anatomical relationships - Enhanced surgical relevance to expanded endonasal approaches, including the transpterygoid approach and endonasal lateral cavernous sinus approach - Educational content on the potential routes of spread for neoplastic and infectious processes This app is an invaluable tool for anyone looking to deepen their understanding of skull base anatomy, whether for educational purposes or clinical practice. This work is supported by the Karren Family Foundation through the Ohlson Research Initiative at the University of Calgary’s Cumming School of Medicine.

About

Math Formulas & Symbols

Features
Read full description

Math Formulas & Symbols is a complete, clear math reference for school, college and exams. Every formula comes with what each symbol means, worked examples and quick practice questions, so you understand it, not just copy it. 150+ FORMULA PAGES IN 14 TOPICS • Numbers and sets: number sets, intervals, divisibility, factors, GCD and LCM, complex numbers • Arithmetic and percent: fractions, exponents and roots, ratio, simple and compound interest • Algebra: factoring, polynomials, linear and quadratic equations, inequalities, functions, exponentials and logarithms • Sequences and series: arithmetic and geometric sequences, the binomial theorem, Taylor and Maclaurin series • Trigonometry: identities, right triangles, law of sines and law of cosines • Plane and solid geometry: triangles, polygons, circles, prisms, cylinders, cones, spheres • Analytic geometry: lines, circles, conic sections, parametric and polar curves • Vectors and matrices: dot and cross products, determinants, systems of equations • Calculus: limits, derivatives, integrals and their applications, multivariable calculus, differential equations • Probability and statistics: mean, standard deviation, probability rules, distributions, z-table • Formula sheets for quick review MATH SYMBOLS • Symbol Finder: 300+ symbols with their names and meaning. Type a symbol or a word to find it • Symbol tables for arithmetic, algebra, geometry, sets, logic, calculus, linear algebra and statistics • Greek letters, constants and how to read math notation aloud MADE FOR STUDYING • Search every page, not just titles • Save pages with a star and pick up where you left off • Adjustable text size, light and dark mode • Works offline 8 LANGUAGES English, Español, Português, Français, Deutsch, العربية, हिन्दी and Bahasa Indonesia. Switch language inside the app at any time. Explanations are written for this app; textbook sources such as OpenStax (CC BY 4.0) are credited on each page.

Screenshots

PPF4 screens
Math Formulas & Symbols4 screens

Verdict

The call

The clearest difference is ads: PPF at none against Math Formulas & Symbols's shown. PPF also leads on update cadence (fortnightly vs every 20 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PPF ships an update fortnightly, Math Formulas & Symbols every 20 months. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 4 level
PPF versus Math Formulas & Symbols: the parameters behind the verdict, then further details
ParameterPPFMath Formulas & Symbols
PriceFreeFree
Update frequencyFortnightly — betterEvery 20 months
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015
Further details — not scored
Size784 MB17 MB
Age rating17++4
DeveloperArthur Volpato BatistaJakir Hossain

In-app purchases

None

PPF

No in-app purchases

None

Math Formulas & Symbols

No in-app purchases

Questions

Is PPF free?
PPF is free to download, with no in-app purchases.
Is Math Formulas & Symbols free?
Math Formulas & Symbols is free to download, with no in-app purchases.
Do PPF or Math Formulas & Symbols have ads?
Math Formulas & Symbols shows ads; PPF does not.
Which is updated more often, PPF or Math Formulas & Symbols?
PPF ships an update fortnightly, and Math Formulas & Symbols every 20 months. Most recently, PPF was updated on October 25, 2026 and Math Formulas & Symbols on November 4, 2026.

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