ReactionFlash vs Structural Formulas Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReactionFlash
This app helps students and chemists review and understand named chemical reactions, their mechanisms, and examples from scientific literature. It functions like flashcards and includes a quiz mode to test knowledge.
- Learn named chemical reactions
- Understand reaction mechanisms
- View literature examples
- Quiz mode for knowledge testing
- Flashcard-style learning
- Extensive collection of reactions
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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.
Structural Formulas Study
Explore and study over 100 molecular structures with detailed properties and clear diagrams. This app offers quick search and filtering for efficient exam preparation and daily learning, with offline access available.
- 100+ molecular structures
- Detailed structural formulas
- Essential chemical properties
- Quick search and filters
- Offline access
- Exam preparation tool
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Learn chemistry the easy way. Explore, search, and filter over 100 molecular structures with clear diagrams and essential data — perfect for exam prep or daily study. Features - 100+ molecules - Structural formulas with detailed properties (mass, density, pKa, etc.) - Quick search & category filters - Offline access – no internet required - Ideal for high school & college chemistry students Make chemistry study simple, efficient, and always at your fingertips!
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Verdict
The clearest difference is ratings volume: ReactionFlash at 42 against Structural Formulas Study's 1. ReactionFlash also leads on iOS requirement (15.5 vs 18.4). Structural Formulas Study's advantage is update cadence (every 5 weeks vs every 4 months) and rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Structural Formulas Study holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ReactionFlash has 42 ratings behind it against 1, so its average is the more settled of the two.
ReactionFlash ships an update every 4 months, Structural Formulas Study every 5 weeks. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.
| Parameter | ReactionFlash | Structural Formulas Study |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (42 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.6% of reviews | — |
| Number of ratings | 42 — better | 1 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.5 — better | 18.4 |
| Further details — not scored | ||
| Size | 40 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Elsevier Limited | Jun Yamabe |
Customer experience
ReactionFlash
Structural Formulas Study
In-app purchases
ReactionFlash
No in-app purchases
Structural Formulas Study
No in-app purchases
Questions
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Is Structural Formulas Study free?
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