ReactionFlash vs BOT Chemistry
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.
BOT Chemistry
Practice for the Chemistry section of the Texas UIL High School Science contest with flashcards and quizzes. Access full content with a school-year subscription for the current contest data.
- Study mode with flashcards
- Quiz mode for knowledge testing
- Practice for UIL High School Science contest
- Access to current school year data
- Subscription for full content
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Get ahead of the game and on your way to being a champion! Best of Texas Contest's Chemistry app helps you practice for the Chemistry section of the Texas UIL High School Science contest. Use flashcards in the Study mode to learn scientific facts, principles and processes, then take a quiz to test your knowledge. A fun and convenient way to practice for the Chemistry section of the High School UIL Science contest. Access to full content requires a subscription. A school-year subscription gives you access to the current school year data for the UIL Chemistry contest.
Screenshots
Verdict
The clearest difference is monetization model: ReactionFlash at free against BOT Chemistry's subscription. ReactionFlash also leads on update cadence (every 4 months vs every 60 months) and ratings volume (41 vs 1). BOT Chemistry's advantage is rating (5.0 vs 4.8) and iOS requirement (12.0 vs 14.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BOT Chemistry holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ReactionFlash has 41 ratings behind it against 1, so its average is the more settled of the two.
ReactionFlash ships an update every 4 months, BOT Chemistry every 60 months. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.
| Parameter | ReactionFlash | BOT Chemistry |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (41 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.6% of reviews | — |
| Number of ratings | 41 — better | 1 |
| Update frequency | Every 4 months — better | Every 60 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Elsevier Limited | Peggy Markham |
Customer experience
ReactionFlash
BOT Chemistry
In-app purchases
ReactionFlash
No in-app purchases
BOT Chemistry
No in-app purchases
Questions
Is ReactionFlash free?
Is BOT Chemistry free?
Which has better reviews, ReactionFlash or BOT Chemistry?
Do ReactionFlash or BOT Chemistry have ads?
Which is updated more often, ReactionFlash or BOT Chemistry?
Other comparisons
