Photronium vs Termolisis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Termolisis
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Temperature calculator for 3 common scales: Celsius, Fahrenheit and Kelvin. A collection of charts with common temperatures used in different industries, trades and arts is also available. Supplementary educational notes.
Screenshots
Verdict
The clearest difference is in-app purchases: Termolisis at none against Photronium's 1. Photronium's advantage is update cadence (monthly vs every 2 months). On price, ads, 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. Photronium sells 1 one-off in-app purchase. Termolisis asks for nothing beyond the download.
Photronium ships an update monthly, Termolisis every 2 months. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.
| Parameter | Photronium | Termolisis |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 | 16.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hao Nguyen | Herbert Caller |
In-app purchases
Photronium
- Multicolored Bookmarks$0.99
Termolisis
No in-app purchases
Questions
Is Photronium free?
Is Termolisis free?
Do Photronium or Termolisis have ads?
Which is updated more often, Photronium or Termolisis?
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