# ReactionFlash — user reviews > 31 indexed App Store user reviews of ReactionFlash by Elsevier Limited, rated 4.80/5 from 41 ratings. - Source: https://appshunter.io/ios/app/reactionflash/id432080813/reviews - App overview in markdown: https://appshunter.io/ios/app/reactionflash/id432080813.md - Rating breakdown: 5★ 36 · 4★ 3 · 3★ 1 · 2★ 0 · 1★ 1 ## Newest reviews (10 of 31) ### 5/5 — 💯💯💯💯 *2016-03-29, version 2.0* Best organic chemistry reference ### 5/5 — Great compendium of named reactions *2014-11-05, version 1.5* Great for people who took organic chemistry 3+ years ago and are now struggling in grad school because they don't remember basic reactions, but don't need to sift through all the basic organic chemistry material either. Well made, concise, has the mechanism and usage. For future versions, doesn't need to be geared so much as a flashcard system as opposed to a straight reference. ### 5/5 — A brilliant app! *2013-12-15, version 1.5* This app has all the major reactions that i needed.. Works fine and is a must for an organic chemistry student! ### 5/5 — Great *2013-10-17, version 1.5* organic chemistry I love you ### 5/5 — a title *2013-09-06* This is by far the most useful app I have ever had. I downloaded it two years ago and can honestly say it is the only app which has improved both my marks and my ability to think on my feet in defences/interviews. I hope the list gets extended sometime soon... ### 5/5 — Incredibly useful! A+ *2013-03-25, version 1.3* I'm a graduate student in chemistry and having this in my phone is perfect for studying on the go or even to look up references. I love how each named reaction also has examples from cited papers. Great app for chemists!! ### 4/5 — Neat *2012-12-19, version 1.2* I am an undergrad in UC Berkeley and this app has helped me a lot in reviewing reactions for O chem (especially 112A-112B). The interface is easy to use. Overall, the application is great. However, I wish that it included more reactions and more detailed mechanisms. ### 5/5 — long term *2012-12-06, version 1.2* A Little pricey but is a nice app to have on hand 24/7. Made from a reliable company and references the named reaction book reviewed by E.J. Corey. Like the quiz function but needs to be more random. Recommend ipad version ### 5/5 — Great tool for all chemists *2012-04-30, version 1.2* From an undergraduate to a professor, this is a great app with full mechanisms and examples from published work, quizzes are also a great help too. Good for learning and refreshing existing knowledge. I had one app issue and it was resolved quickly, support as very helpful. Worth the money for the full version. ### 5/5 — Great tool for studying Organic Chemistry *2011-04-28* I wish this app was available when I was taking Orgo last semester! This is such a great app and is super simple to use. It includes all the reactions you will need to know for both parts of Organic Chemistry. Looking forward to updates in the future. ## Most critical reviews (10 lowest-rated) ### 1/5 — Frozen App! *2013-09-12, version 1.5* My app has been frozen since the last update. I have tried multiple times to unlock the app and re-do the update but nothing seems to work. ### 1/5 — $9.99 *2012-11-23, version 1.2* So not worth it! It's too expensive for the 200+ rxns that can be easily found all over the Internet. ### 1/5 — Mr. *2012-11-21, version 1.2* They should be honest and just advertise this as an app that costs money. Deleted 2 minutes after downloading. ### 2/5 — Look forward to the major update *2011-05-26, version 1.0* The list is too short and many well-known name reactions are not listed. With so many free resources available in the internet, I'm not sure how you can justify the charge for such a simple list. Look forward to a major upgrade to add more name rxns. ### 3/5 — Please fix the landscape swiping *2019-11-13, version 2.11* You can’t swipe through reactions in landscape mode without them shifting partially off screen and requiring an app reset to fix the issue. If this were fixed, the app would be super intuitive and helpful! Hope it gets fixed! ### 3/5 — Great start *2014-07-31, version 1.5* Add more reactions, would be a great format and practice method for organic chem students. Those reactions from organic 1 &2 would obviously be crucial. Also, please include arrows for the mechanisms. This would be a good first update. The ability to add your own reactions would be nice. A chemdraw format would be nice. Testing format and primary sourced applicable examples are awesome. ### 4/5 — This is the best app but please.. Addition language Arabic *2019-08-27, version 2.10* This is the best app but please.. Addition language Arabic ### 4/5 — iPad compatibility? *2018-09-05, version 2.8.1* It is a great app for quick references and many more. But I often use iPad for reading. Is there a way to get this app on my iPad? That would save lot of time ### 4/5 — Great quick reference for organic reactions *2016-02-20, version 2.0* I highly recommend this app for organic chemists. I frequently use it for reference to look up reactions (and their mechanisms). It's also quite useful to quiz myself. It's not perfect (annoying to rotate phone to landscape to look at a reaction and then rotate back to look at the list of reactions) but from what I've see this is the best app for organic reactions on the AppStore. ### 4/5 — Great *2013-12-25, version 1.5* Variable . ## Most praised reviews (10 highest-rated) ### 5/5 — 好用的 *2026-07-23, version 5.3* 很好用，推荐给了学生 ### 5/5 — well dooooooooone！ *2024-02-06* what a useful app for us chem students **Developer response:** Hello well dooooooooone, Thank you very much for your rating and for your very nice comment. Our team much appreciates it. Please do not hesitate to sending us any suggestion you may have via e-mail to reactionflash@elsevier.com. Wishing you great success and an excellent day Best Pieder - for the ReactionFlash team ### 5/5 — Insanely Useful for Organic chemists *2023-07-15* 1200+ reactions with mechanisms and literature examples. **Developer response:** Hello Andrrew, Thank you very much for your rating and for your nice comment. Our team very much appreciates it and we are honoured to receiving such comment from you. Please do not hesitate to sending us a message to reactionflash@elsevier.com with comments/recommendations. Wishing you great success and an excellent day and please do not hesitate to talk about ReactionFlash to your friends. Best Pieder - for the ReactionFlash team ### 5/5 — Great app *2023-04-29, version 4.2* Amazing for learning organic chemistry ### 5/5 — So informative and handy *2019-12-25, version 2.12* ReactionFlash is a very informative application. It is a very handy source of name reactions. I have been entertaining myself doing the quizzes during the nights with a beer in hand. ### 5/5 — So useful *2018-11-03, version 2.8.2* Can’t say enough about how handy and informative this app is. Saves so much time. Thank you!! ### 5/5 — Science accessible as it should be *2018-04-19, version 2.7* App is easy to use and understand, well developed and it is FREE. Its a nifty little study guide in my phone, and it saves me a ton of time in the lab. I like that it includes the mechanisms, examples and quizzes too. Very helpful, thank you for making this! A suggestion: Hinsberg test for amines 👍🏼 ### 5/5 — Aha *2017-01-17* This is a very helpful app for organic chemists! **Developer response:** Hello J McCone Thank you very much for your comment. Please do not hesitate to contact us at reactionflash@reaxys.ch with any suggestion or concern. Wishing you an excellent day Pieder - for the ReactionFlash Team ### 5/5 — Who doesn't love organic reactions *2017-01-04, version 2.3.1* Solid all around app that provides a lot of good examples for named reactions. It'd be wonderful if you could look for a certain transformation to find the named reactions in addition. ### 5/5 — A must have reference *2016-04-23, version 2.0* I highly recommend this app for organic chemists who want time killer with their iPhones! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*