Organic Reactions vs Lumos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Organic Reactions
Access key functional group reactions and their mechanisms in organic chemistry. Quickly find links between reactants and products, including synthesis and protection reactions. Some advanced features and reaction lists require an additional purchase.
- Functional group reactions
- Reaction mechanisms
- Reactant-product links
- Synthesis reactions
- Protection reactions
Read full descriptionHide full description
This app allows people working in organic chemistry for a quick access to the main functional group reactions and their mechanisms. The application is organized to provide a direct link between a reactant and its corresponding product, as well as the synthesis and protection reactions. To enable a regular updating and to support this work, some of the functions, and a list of reactions sorted by name requires an additional purchase. If you have any problem, do not hesitate to send me an email, by explaining the nature of your problem and your phone model.
Lumos
Read full descriptionHide full description
Welcome to Lumos—your interactive, hands-on physics laboratory for exploring the fascinating behavior of light. Designed for students and curious minds, Lumos brings complex optical phenomena to life through stunning real-time 3D simulations. Whether you're studying for an exam or just curious about how light behaves, Lumos makes learning physics intuitive, visual, and engaging. KEY FEATURES: • INTERACTIVE OPTICS LAB Experiment with Reflection, Refraction, and Diffraction in real-time. Direct light rays, adjust incident angles, and change wavelengths to see immediate physics in action. • CUSTOM MEDIUMS & SPECTRUMS Change properties like refractive index and surface roughness. See how light behaves as it travels between Air, Water, and Glass. • MASTER PHYSICS WITH QUIZZES Test your understanding with built-in interactive quizzes. Each topic comes with custom diagrams, instant grading, and detailed explanations to help you master concepts. Unravel the mysteries of light and master physics with Lumos today!
Screenshots
Verdict
The clearest difference is in-app purchases: Lumos at none against Organic Reactions's 2. Organic Reactions's advantage is iOS requirement (17.6 vs 26.2). On price, ads and device support 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. Organic Reactions sells 2 one-off in-app purchases. Lumos asks for nothing beyond the download.
| Parameter | Organic Reactions | Lumos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (162 ratings) — better | — |
| Positive reviews | 68.0% of reviews | — |
| Number of ratings | 162 — better | — |
| Update frequency | Every 10 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 16 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Florent Breton | GALGOTIAS UNIVERSITY,SCHOOL OF BUSINESS |
In-app purchases
Organic Reactions
- One month subscription$0.99
- Full App$4.99
Lumos
No in-app purchases









