ReactionFlash vs Chemical Engineering+
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 Engineering+
Test your knowledge of chemical engineering with a comprehensive quiz app. It offers thousands of questions across various topics, adaptive difficulty, and detailed explanations to enhance learning. Prepare for exams and boost your industry skills with this interactive tool.
- Extensive question bank
- Topic-specific quizzes
- Calculations & problem solving
- Adaptive difficulty
- Interactive learning with explanations
- Offline play
- Leaderboard competition
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Master the World of Chemical Engineering with our Quiz App! Dive into the fascinating world of chemical engineering and test your knowledge with our app! Whether you’re a student, a professional, or just passionate about the field, this app is your ultimate companion to learn, revise, and challenge yourself. Key Features - Extensive Question Bank: Thousands of questions covering diverse topics like thermodynamics, reaction engineering, process control, energy systems, nanotechnology, and more. - Topic-Specific Quizzes: Focus on areas that matter most to you, from corrosion prevention to renewable energy systems. - Calculations & Problem Solving: Sharpen your skills with numerical problems and real-world scenarios. - Adaptive Difficulty: Questions designed for beginners to experts—perfect for everyone! - Interactive Learning: Detailed explanations for each answer to deepen your understanding. Boost Your Knowledge - Prepare for exams like FE, PE, or university assessments. - Enhance your practical skills for industry applications. - Stay updated with emerging trends like AI in process optimization and sustainable technologies. Why ChemEng Quiz Master? - Designed by experts in chemical engineering. - Intuitive interface with engaging visuals and progress tracking. - Play offline anytime, anywhere. How It Works 1. Choose a topic or let the app select one for you. 2. Answer multiple-choice questions and solve calculation-based problems. 3. Review your performance and learn from detailed feedback. Join a Global Community of Learners Challenge yourself, compete with friends, and climb the leaderboard to become a Chemical Engineering Master! Download ChemEng Quiz Master Today! Your journey to becoming a chemical engineering expert starts here. Unlock your potential, one question at a time. Start Quizzing. Start Learning. Start Winning. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/ChemicalEngineering/privacy-policy
Screenshots
Verdict
The clearest difference is review sentiment: ReactionFlash at 81% against Chemical Engineering+'s 0%. ReactionFlash also leads on rating (4.8 vs 3.0) and in-app purchases (none vs 6). Chemical Engineering+'s advantage is update cadence (every 2 months vs every 4 months). 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. Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month. ReactionFlash asks for nothing beyond the download.
ReactionFlash holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: ReactionFlash has 42 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 81% of ReactionFlash's written reviews are positive against 0% of Chemical Engineering+'s.
ReactionFlash ships an update every 4 months, Chemical Engineering+ every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | ReactionFlash | Chemical Engineering+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (42 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 80.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 42 — better | 2 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 37 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Elsevier Limited | Forwa Elade Wunde |
Customer experience
ReactionFlash
Chemical Engineering+
In-app purchases
ReactionFlash
No in-app purchases
Chemical Engineering+
- 1 Month$9.991 Month
- 6 Months$19.996 Months
- 1 Year$29.991 Year
- 1500$0.99
- 3500$1.99
- 9000$3.99
Questions
Is ReactionFlash free?
Is Chemical Engineering+ free?
Which has better reviews, ReactionFlash or Chemical Engineering+?
Do ReactionFlash or Chemical Engineering+ have ads?
Which is updated more often, ReactionFlash or Chemical Engineering+?
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