Physics Constants Library vs COMath Premium
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Physics Constants Library
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Discover the building blocks of our universe with Physics Constants Library β the ultimate reference and learning tool for students, educators, and professionals. Whether youβre preparing for exams, teaching in the classroom, or working on research, this app puts the most important physics constants and tools at your fingertips. What Youβll Get β’ 20+ Fundamental Constants β Gravity, Planckβs constant, electron charge, speed of light, and more. β’ Smart Search & Filters β Quickly find constants by name, symbol, or value. β’ Multi-Unit Support β Switch between SI, CGS, Imperial, and other unit systems. β’ Interactive Learning β Use flashcards, quizzes, and study modes to strengthen memory. β’ Professional Tools β Unit converter, calculator, and built-in formula helper. β’ Offline Access β Access all content anytime, without internet. Key Features Constants Library β’ Covers mechanics, quantum physics, thermodynamics, electromagnetism, and more. β’ Includes historical context, real-world applications, and related concepts. Learning Center β’ Flashcards with smart repetition for long-term retention. β’ Quizzes with adjustable difficulty levels. β’ Study progress tracking to stay motivated. Professional Tools β’ Advanced unit converter with 25+ categories. β’ Scientific calculator with constants built-in. β’ Formula helper to apply equations instantly. Modern Experience β’ Clean, elegant interface designed for clarity. β’ Dark mode, 10 app themes - System, Light, Dark, Cosmic, Quantum, Sunset, Ocean, Forest, Aurora, Midnight and accessibility support. β’ Favorites tab for quick access to your most-used constants. Perfect For β’ Students β Learn and memorize constants with ease. β’ Teachers β Enhance lessons with interactive study tools. β’ Researchers & Engineers β Reliable, quick reference during work. β’ Enthusiasts β Explore the fundamental constants that shape our world. Data Accuracy You Can Trust All values are based on CODATA 2018 recommendations and NIST standards, ensuring precision for both academic and professional use. Upgrade for More Unlock premium to access advanced study modes, unlimited practice, and detailed progress analytics. Download Physics Constants Library today and take your physics knowledge to the next level!
COMath Premium
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COMath Premium makes it easy to practice math, solve word problems, learn algebra step by step, and enjoy number puzzles such as Sudoku, Calcudoku, and Fillomino. Premium includes full access, no ads, and no privacy tracking. New to COMath? Try the ad-supported COMath first to experience the same core features before choosing Premium.
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Verdict
The clearest difference is price: Physics Constants Library at Free against COMath Premium's $0.99. COMath Premium's advantage is in-app purchases (none vs 1) and ads (none vs shown).
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Physics Constants Library is free to download; COMath Premium costs $0.99 up front. Physics Constants Library sells 1 one-off in-app purchase. COMath Premium asks for nothing beyond the download.
Physics Constants Library ships an update every 7 months, COMath Premium every 2 weeks. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.
| Parameter | Physics Constants Library | COMath Premium |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Every 7 months | Every 2 weeks β better |
| Ads | Yes | No β better |
| In-app purchases | Yes | No β better |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 18.4 | 15.0 β better |
| Further details β not scored | ||
| Size | 10 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | ChatStick Company Limited | Jianfeng Wu |
In-app purchases
Physics Constants Library
- Unlock All Features$2.99
COMath Premium
No in-app purchases
Questions
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Is COMath Premium free?
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