PPF vs Math Formulas & Symbols
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PPF
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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.
Math Formulas & Symbols
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | PPF | Math Formulas & Symbols |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 20 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15 |
| Further details — not scored | ||
| Size | 784 MB | 17 MB |
| Age rating | 17+ | +4 |
| Developer | Arthur Volpato Batista | Jakir Hossain |
In-app purchases
PPF
No in-app purchases
Math Formulas & Symbols
No in-app purchases
Questions
Is PPF free?
Is Math Formulas & Symbols free?
Do PPF or Math Formulas & Symbols have ads?
Which is updated more often, PPF or Math Formulas & Symbols?
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