Comparison

ReactionFlash vs Ultimate Chemistry Calculator

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

Ultimate Chemistry Calculator

This app offers nine specialized calculators for mole-related conversions, including grams to moles and moles to particles (atoms or molecules). It visually sets up conversion problems, allowing users to input numbers and calculate results. A review section provides a brief overview of mole conversions.

Highlights
  • Nine specialized mole conversion calculators
  • Grams to Moles to Particles conversions
  • Molecule to Atom conversion
  • Visual problem setup
  • Integrated review section
Features
Read full description

The "Ultimate Chemistry Calculator" contains nine specialized calculators that perform specific types of mole related conversions. These conversions involve converting from one unit to a goal unit within the general bidirectional pathway Grams to Moles to Particles, where Particles represents Atoms or Molecules. However, if working with Molecules, it is also possible to convert to Atoms. Upon choosing which conversion is needed, users can choose the calculations tab and simply type in the numbers given within a conversion problem and press calculate. What's great about this app is that upon moving over to the calculations tab after selecting a calculator, the entire problem is already setup visually in terms of how many ratios are present for the particular conversion problem (the user just has to punch in the numbers). There is also a brief review of mole conversions within the review section located under the Review tab.

Screenshots

ReactionFlash4 screens
Ultimate Chemistry Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Ultimate Chemistry Calculator at 100% against ReactionFlash's 81%. Ultimate Chemistry Calculator also leads on rating (5.0 vs 4.8) and iOS requirement (10.0 vs 14.0). ReactionFlash's advantage is ratings volume (42 vs 4). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ultimate Chemistry Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ReactionFlash has 42 ratings behind it against 4, 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 100% of Ultimate Chemistry Calculator's.

Scorecard4 real differences · 6 level
ReactionFlash versus Ultimate Chemistry Calculator: the parameters behind the verdict, then further details
ParameterReactionFlashUltimate Chemistry Calculator
PriceFreeFree
Rating4.8 (42 ratings)5.0 (4 ratings) — better
Positive reviews80.6% of reviews100.0% of reviews — better
Number of ratings42 — better4
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.010.0 — better
Further details — not scored
Size37 MB1 MB
Age rating4+4+
DeveloperElsevier LimitedHarold Iwen

Customer experience

ReactionFlash

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

Ultimate Chemistry Calculator

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ReactionFlash

No in-app purchases

None

Ultimate Chemistry Calculator

No in-app purchases

Questions

Is ReactionFlash free?
ReactionFlash is free to download, with no in-app purchases.
Is Ultimate Chemistry Calculator free?
Ultimate Chemistry Calculator is free to download, with no in-app purchases.
Which has better reviews, ReactionFlash or Ultimate Chemistry Calculator?
Ultimate Chemistry Calculator is rated higher. ReactionFlash averages 4.8 out of 5 from 42 ratings, while Ultimate Chemistry Calculator averages 5.0 from 4 ratings.
Do ReactionFlash or Ultimate Chemistry Calculator have ads?
Neither ReactionFlash nor Ultimate Chemistry Calculator shows ads.

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