Comparison

ReactionFlash vs Visualizing Organic Chemistry

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

Head to head
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.

About

Visualizing Organic Chemistry

This app offers interactive 3D models and animations to help students and instructors visualize complex organic chemistry concepts. Explore orbitals, bonding, physical properties, stereochemistry, and reactions through dynamic visuals.

Highlights
  • Interactive 3D atomic and molecular orbital models
  • 3D electrostatic potential maps
  • Animated Newman projections and conformational changes
  • 3D models for stereochemistry visualization
  • Interactive spectroscopy models (IR, NMR)
  • Animated reaction pathways with energy changes
Features
Read full description

Visualizing Organic Chemistry is a collection of tools that make learning organic chemistry easier. It’s an excellent resource for instructors and students alike! The app contains over 60 visuals, most incorporating 3D interactive models and animations that help students envision key concepts in organic chemistry. Visualizing Organic Chemistry includes: -Orbitals and Bonding- • Interactive 3D models of basic and hybrid atomic orbitals • Molecular orbital diagrams with 3D models showing orbital shape and symmetry • How bond dissociation energy changes with internuclear distance -Physical Properties- • Define the most important functional groups with structural drawings and 3D models • Electronegativity trends and Pauling electronegativities of the elements • 3D electrostatic potential maps demonstrating charge distribution in molecules • 3D molecular models demonstrating how molecular size and shape affect surface area and boiling point -Free Rotation and Conformations- • Interactive Newman projections demonstrating free rotation with conformational changes reflected in 3D models • Interactive Newman projections demonstrating torsional and steric strain energies • 3D models of smaller cycloalkanes with animated changes between important conformations • 3D models of cyclopropane, cyclobutane, and cyclopentane illustrating several important conformations • Animated 3D models of cyclohexanes demonstrating conformational inversions (chair flips) and 1,3-diaxial strain • 3D models illustrating spirocyclic, fused, and bridged bicyclic compounds -Stereochemistry- • 3D models illustrating cis/trans isomers of disubstituted rings and alkenes • 3D models demonstrating chirality and its relation to symmetry • 3D models depicting the spatial relationships of substituents in both dash-wedge and Fischer projections • Interactive dash-wedge and Fischer projections demonstrating 3D rotation of substituents in 2D space • 3D model of a basic polarimeter illustrating the measurement of optical rotation of chiral compounds • 3D models that demonstrate enantiomeric and diastereomeric relationships in compounds with more than one chiral center -Spectroscopy- • Animated, interactive 3D models depicting CH2X2 IR stretching and bending vibrational modes • IR spectra for several compounds depicting the most important functional group absorptions • NMR spectra with accompanying 3D models illustrating chemical equivalency and its relationship to symmetry • Proton and carbon-13 NMR spectra for several compounds depicting several important chemical shift ranges -Reactions- • Interactive 3D animation of HX addition showing free energy changes during the reaction • Interactive 3D animations demonstrating syn/anti stereoselectivity in various electrophilic additions • Interactive 3D animation of nucleophilic substitutions showing free energy changes during the reaction • Interactive 3D animations demonstrating inversion and retention of stereochemistry in nucleophilic substitutions • Interactive 3D animations demonstrating syn/anti stereoselectivity in E1 and E2 eliminations

Screenshots

ReactionFlash4 screens
Visualizing Organic Chemistry4 screens

Verdict

The call

The clearest difference is review sentiment: ReactionFlash at 81% against Visualizing Organic Chemistry's 0%. ReactionFlash also leads on price (Free vs $7.99) and rating (4.8 vs 1.0). On ads, in-app purchases, device support and iOS requirement 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

ReactionFlash is free to download; Visualizing Organic Chemistry costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ReactionFlash holds the better App Store score, 4.8 against 1.0. 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. Written reviews point the same way: 81% of ReactionFlash's written reviews are positive against 0% of Visualizing Organic Chemistry's.

UpkeepUpdate frequency

ReactionFlash ships an update every 4 months, Visualizing Organic Chemistry every 8 months. Both last shipped on September 21, 2026.

Scorecard6 real differences · 4 level
ReactionFlash versus Visualizing Organic Chemistry: the parameters behind the verdict, then further details
ParameterReactionFlashVisualizing Organic Chemistry
PriceFree — better$7.99
Rating4.8 (41 ratings) — better1.0 (1 ratings)
Positive reviews80.6% of reviews — better0.0% of reviews
Number of ratings41 — better1
Update frequencyEvery 4 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.013.0 — better
Further details — not scored
Size37 MB31 MB
Age rating4+4+
DeveloperElsevier LimitedAaron M. Hartel

Customer experience

ReactionFlash

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

Visualizing Organic Chemistry

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

ReactionFlash

No in-app purchases

None

Visualizing Organic Chemistry

No in-app purchases

Questions

Is ReactionFlash free?
ReactionFlash is free to download, with no in-app purchases.
Is Visualizing Organic Chemistry free?
Visualizing Organic Chemistry costs $7.99, with no in-app purchases.
Which has better reviews, ReactionFlash or Visualizing Organic Chemistry?
ReactionFlash is rated higher. ReactionFlash averages 4.8 out of 5 from 41 ratings, while Visualizing Organic Chemistry averages 1.0 from 1 ratings.
Do ReactionFlash or Visualizing Organic Chemistry have ads?
Neither ReactionFlash nor Visualizing Organic Chemistry shows ads.
Which is updated more often, ReactionFlash or Visualizing Organic Chemistry?
ReactionFlash ships an update every 4 months, and Visualizing Organic Chemistry every 8 months. Most recently, ReactionFlash was updated on September 21, 2026 and Visualizing Organic Chemistry on September 21, 2026.

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