Comparison

Organic Nomenclature vs ReactionFlash

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Organic Nomenclature

Master chemical nomenclature with interactive lessons and quizzes covering various organic compound classes. Practice naming compounds and receive intelligent feedback to improve comprehension. View compounds in skeletal or condensed form.

Highlights
  • Interactive naming lessons
  • Practice quizzes
  • Intelligent quiz grading
  • Skeletal and condensed compound views
  • Alkanes, alcohols, aromatics naming
Features
Read full description

What's in a name? Your name will be MUD unless you learn how to name organic compounds! Organic Nomenclature will help you master chemical nomenclature. It features clear, concise, interactive lessons on how to name the compounds commonly encountered in an organic chemistry course. Each lesson includes a quiz for you to practice what you've learned and evaluate your level of comprehension. Includes naming lessons and quizzes covering: • Alkanes • Cycloalkanes • Alcohols • Aromatics • Ketones Other features include: • An innovative quiz engine that allows you to quickly generate complete names with no typing • Intelligent quiz answer grading that awards partial credit and provides feedback so you can learn from your mistakes • View all compounds in either skeletal or condensed form • Created by an award winning professor of chemistry Additional lessons and quizzes can be purchased that cover over 20 different functional classes! Be sure to check out our other apps for learning reactions and for visualizing organic chemistry! If you have questions or suggestions contact us at: learnorgchemistry@gmail.com

About

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.

Highlights
  • Learn named chemical reactions
  • Understand reaction mechanisms
  • View literature examples
  • Quiz mode for knowledge testing
  • Flashcard interface
Features
Read full description

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.

Screenshots

Organic Nomenclature4 screens
ReactionFlash4 screens

Verdict

The call

The clearest difference is in-app purchases: ReactionFlash at none against Organic Nomenclature's 2. ReactionFlash also leads on update cadence (every 4 months vs every 21 months). Organic Nomenclature's advantage is ratings volume (661 vs 42) and iOS requirement (11.0 vs 14.0). On price, rating, review sentiment and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Organic Nomenclature sells 2 one-off in-app purchases. ReactionFlash asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Organic Nomenclature against 4.8 for ReactionFlash. That said, the two scores are not equally well evidenced: Organic Nomenclature has 661 ratings behind it against 42, so its average is the more settled of the two. Written reviews are what separate them: 87% of Organic Nomenclature's written reviews are positive against 81% of ReactionFlash's.

UpkeepUpdate frequency

Organic Nomenclature ships an update every 21 months, ReactionFlash every 4 months. The most recent releases landed on November 7, 2026 and November 1, 2026 respectively.

Scorecard5 real differences · 5 level
Organic Nomenclature versus ReactionFlash: the parameters behind the verdict, then further details
ParameterOrganic NomenclatureReactionFlash
PriceFreeFree
Rating4.7 (661 ratings)4.8 (42 ratings) — better
Positive reviews87.3% of reviews — better80.6% of reviews
Number of ratings661 — better42
Update frequencyEvery 21 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size24 MB37 MB
Age rating4+4+
DeveloperAaron M. HartelElsevier Limited

Customer experience

Organic Nomenclature

All ratings598 ratings
Positive94.5%
Neutral3.2%
Negative2.3%
Written reviews118 reviews
Positive87.3%
Neutral9.3%
Negative3.4%

ReactionFlash

All ratings41 ratings
Positive95.1%
Neutral2.4%
Negative2.4%
Written reviews31 reviews
Positive80.6%
Neutral6.5%
Negative12.9%

Bugs and requests

Organic Nomenclature

Reported bugs

2 issues
  • Buttons not working
  • Frequent crashes

Requested features

5 requests
  • More practice questions and quizzes
  • Explanations for incorrect answers
  • Support for advanced naming (isomers, stereochemistry)
  • Expanded set of functional groups
  • Ability to track progress and performance

ReactionFlash

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Organic Nomenclature

One-time2
  • Nomenclature 1$1.99
  • Nomenclature 2$1.99
None

ReactionFlash

No in-app purchases

Questions

Is Organic Nomenclature free?
Organic Nomenclature is free to download, with in-app purchases available.
Is ReactionFlash free?
ReactionFlash is free to download, with no in-app purchases.
Which has better reviews, Organic Nomenclature or ReactionFlash?
ReactionFlash is rated higher. Organic Nomenclature averages 4.7 out of 5 from 661 ratings, while ReactionFlash averages 4.8 from 42 ratings.
Do Organic Nomenclature or ReactionFlash have ads?
Neither Organic Nomenclature nor ReactionFlash shows ads.
Which is updated more often, Organic Nomenclature or ReactionFlash?
Organic Nomenclature ships an update every 21 months, and ReactionFlash every 4 months. Most recently, Organic Nomenclature was updated on November 7, 2026 and ReactionFlash on November 1, 2026.

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