Math Dictionary Offline vs Photronium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math Dictionary Offline
Access a comprehensive collection of mathematical terms and definitions without an internet connection. This free application allows you to search for specific words alphabetically or by using the built-in search tool. It's ideal for students and anyone needing quick math reference on the go.
- Offline access
- Extensive math vocabulary
- Completely free
- Alphabetical listing
- Search tool
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Math Dictionary Offline explains more than 4,400 mathematics terms, and works without an internet connection. Arithmetic, algebra, geometry, trigonometry, calculus and statistics, in short definitions for school and university students and for parents helping with homework. LOOK UP • 4,400+ entries in alphabetical order • Tap any linked term inside an entry to open it • Search that forgives spelling mistakes, accents and punctuation, and can also search inside the entries • Hear the headword read aloud (American or British voice) • Bookmarks and history LEARN • Flashcards with spaced repetition: what you find hard comes back sooner • Multiple-choice quiz • Ready-made decks to start with, or study your own bookmarks • Word of the day, with an optional morning notification COMFORTABLE • Works offline: everything is on your device • Light and dark mode, three text sizes • iPhone and iPad The app is free and shows ads. A one-time purchase removes them. The definitions are short explanations for study and general information.
Photronium
Access over 360 physics equations with clear explanations and powerful search tools. Test your knowledge with custom quizzes and learn offline anywhere, anytime. This educational reference is designed for learners of all levels.
- 360+ physics equations
- Offline access
- Intelligent Search
- Symbol Search
- Customizable quizzes
- Bookmarking
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With over 360 physics equations explained in a clear, easy-to-understand way and a flexible search system, Photronium can be an immensely helpful tool for learners of any level. PHYSICS AT YOUR FINGERTIPS Look up any physics equation, with topics including: • Motion in One Dimension • Projectile Motion • Laws of Motion • Uniform Circular Motion • Work and Energy • Linear Momentum and Collisions • Rotation of Rigid Bodies • Universal Gravitation • Fluid Mechanics • Oscillatory Motion • Wave Motion • Sound Waves • Thermodynamics • Electromagnetism • Light and Optics • Relativity • Quantum Physics All available offline, so you can learn anywhere, anytime. MEMORY QUIZ Test your knowledge by taking quizzes! Bookmark any section that interests you, and Photronium will automatically create quizzes based on those bookmarks. INTELLIGENT SEARCH & SYMBOL SEARCH Just type anything. Intelligent Search can work with the most ambiguous descriptions, like “atom”, “lens”, “radiation”, “Newton”, and “phase angle”. And when you need to find a physics formula without any description, Symbol Search provides a discovery experience you’ve never seen before. FREE & NO ADS Photronium comes with over 360 physics equations, Intelligent Search, Symbol Search, Widgets, Bookmarks, Suggested Websites, and Dark Mode all available for free and ad-free. With Extras, you can purchase more features and support the app’s development. Have questions or feedback? From the app, open Extras and send a report.
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Verdict
The clearest difference is review sentiment: Photronium at 100% against Math Dictionary Offline's 50%. Photronium also leads on rating (5.0 vs 4.0) and ads (none vs shown). Math Dictionary Offline's advantage is monetization model (free vs free with in-app purchases). 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. Math Dictionary Offline sells 1 one-off in-app purchase and Photronium sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Photronium holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Photronium has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of Math Dictionary Offline's written reviews are positive against 100% of Photronium's.
Math Dictionary Offline ships an update every 60 months, Photronium monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Math Dictionary Offline | Photronium |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 10 — better |
| Update frequency | Every 60 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 9 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Putranto | Hao Nguyen |
Customer experience
Math Dictionary Offline
Photronium
In-app purchases
Math Dictionary Offline
- Remove Ads$4.99
Photronium
- Multicolored Bookmarks$0.99
Questions
Is Math Dictionary Offline free?
Is Photronium free?
Which has better reviews, Math Dictionary Offline or Photronium?
Do Math Dictionary Offline or Photronium have ads?
Which is updated more often, Math Dictionary Offline or Photronium?
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