ReactionFlash vs Chemical Structures Quiz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReactionFlash
This app serves as a comprehensive flashcard-style learning tool for named chemical reactions. It provides detailed information on reaction mechanisms and examples from scientific literature, with a quiz mode to test user knowledge.
- Learn named chemical reactions
- Understand reaction mechanisms
- View literature examples
- Quiz mode for knowledge testing
- Flashcard interface
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Want to refresh your memory on named chemical reactions before an exam or a group meeting? Get all the details with ReactionFlash(R) as a great way to learn named reactions, understand their mechanisms and view examples published in peer-reviewed literature. Designed and developed in consultation with Professor Dr. Erick M. Carreira of ETH Zürich, the app covers 1'266 named chemical reactions, by far the largest collection of Named Reactions. Professor Carreira has helped ensure that we have all the fundamental reactions that should be part of every chemist’s toolkit: from the best-known ones to the ones only Nobel Prize winners remember! The app is designed like a set of flash cards so it can be used as a learning tool as well as a reference. Each ‘card’ shows the reaction, its mechanism and examples from peer-reviewed, published literature. It also has a quiz mode that lets you test your knowledge. Linking into Reaxys enables you to find the most recent examples of each reaction, many with experimental details. Reaxys delivers experimental facts from the literature, enabling researchers to find the best synthetic routes and conditions. Find out more at https://www.elsevier.com/solutions/reaxys Download the app now and see if you know all the named reactions! Summary: - Learn named reactions - Review and understand mechanisms - Explore examples published in peer-reviewed literature - Take the ReactionFlash quiz and see how much you know If you need support, please contact us at reactionflash@elsevier.com. Reaxys and ReactionFlash are trade marks of Elsevier Limited, used under license.
Chemical Structures Quiz
Test your knowledge of organic and biochemical compounds with multiple-choice quizzes. Learn systematic and common names for hydrocarbons, functional groups, and biomolecules. Ideal for high school students studying chemistry.
- Multiple-choice quizzes
- Learn systematic and common names
- Covers hydrocarbons, functional groups, biomolecules
- Offline functionality
- No advertisements
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Quickly learn the chemical structures of the most important organic and biochemical compounds, taught in secondary education (high school), by taking the multiple choice quizzes. Systematic name, trivial name (common name), or both are given. Hydrocarbons, functional groups, biomolecules, sugars, nucleobases, vitamins, amino acids. Similar to my other (free) apps. Works offline. No ads.
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Verdict
The clearest difference is price: ReactionFlash at Free against Chemical Structures Quiz's $3.99. ReactionFlash also leads on review sentiment (81% vs 50%). Chemical Structures Quiz's advantage is iOS requirement (11.0 vs 14.0). On update cadence, ads, in-app purchases 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
ReactionFlash is free to download; Chemical Structures Quiz costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ReactionFlash ships an update every 4 months, Chemical Structures Quiz every 2 months. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.
| Parameter | ReactionFlash | Chemical Structures Quiz |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.8 (41 ratings) — better | — |
| Positive reviews | 80.6% of reviews — better | 50.0% of reviews |
| Number of ratings | 41 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Elsevier Limited | Marijn Dillen |
Customer experience
ReactionFlash
Chemical Structures Quiz
In-app purchases
ReactionFlash
No in-app purchases
Chemical Structures Quiz
No in-app purchases
Questions
Is ReactionFlash free?
Is Chemical Structures Quiz free?
Do ReactionFlash or Chemical Structures Quiz have ads?
Which is updated more often, ReactionFlash or Chemical Structures Quiz?
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