About & Pics


Mechanisms is the first app for organic chemistry that allows you to practice and learn reaction mechanisms by moving and manipulating electrons! 90% of college students find Mechanisms to be beneficial to their studies ー don’t get left out of the equation!

See, touch, and practice how chemical reactions occur at the particulate level in an
intuitive way. As you work through each exercise, you will receive hints and feedback based on the moves you make - so you learn as you practice and apply concepts. Mechanisms also provides you with real-time assessment, giving you a measure of your performance and comprehension every step of the way.

Mechanisms – HIGHLIGHTS
- FREE to use
- PRACTICE 40 different chemistry-based puzzles
- INTERACTIVE studying 一 drop your paper and pencil
- VISUALIZE mechanisms, electrons, protons, molecules, bonds, reactions, and elements!

An Interactive Way to Learn Organic Chemistry

With content developed to complement the organic chemistry curriculum of top universities,
Mechanisms offers a new way for you to practice, learn, and master important concepts in
organic chemistry. Our content library will continue to expand, with new puzzles and modules in

The introductory set of Mechanisms puzzles include 40 challenges regarding chemical structure,
acid-base reactions, addition reactions, and a survey of carbonyl reactions. All these puzzles include
hints and videos to help you understand organic chemistry better.

Built By Award Winning Educators & Developers

Created and designed by an award-winning, research-backed, National Science Foundation-funded
team of educators and game-developers, Mechanisms combines curriculum content from top
universities with innovative and thoughtful design.

Mechanisms – Subscription & Pricing

The Mechanisms Full Access subscription will include reactions that cover substitution, elimination,
electrophilic aromatic substitution, and specific reactions of the functional groups of oxygen. This
broad range of Mechanisms puzzles will take you from early concepts in semester one to the toughest
multi-step reactions of semester two.

The price is $9.99 for a 6-month subscription purchase and will be applied to your account on
confirmation. Subscriptions will automatically renew unless canceled at least 24-hours before the end
of the current period. You can cancel anytime from your payment account settings.

- OR -

You can acquire full access to all mechanism puzzles and future updates with a one-time purchase.

For more information, see our Terms of Service and Privacy Policy, links below:

Terms of Use: http://www.alchem.ie/enduserlicenseagreement
Privacy Policy: http://www.alchem.ie/privacy-policy

Download Mechanisms today! The first interactive tool to learn & practice organic

 Free in iOS App Store


Mechanisms: Organic Chemistry screenshot 1Mechanisms: Organic Chemistry screenshot 2Mechanisms: Organic Chemistry screenshot 3Mechanisms: Organic Chemistry screenshot 4

Version History

Launched Mar 01, 2018 (about 1 year ago).

Releasing new versions every 23 days, on average.

Mar 02
Version 1.16

- Layout fixes.
- Other small bug fixes.

Feb 12
Version 1.15

- Improved usability on small devices.
- Added descriptive images for puzzle categories.
- Added one-time full-access purchase.
- Fixed some bugs for more than one user on a device.

Jan 18
Version 1.14

- A new assignments category.
- Small bug fixes.

Dec 19
Version 1.13

- Improved the hint system.
- Added expert mode for advanced users.
- Various content fixes.

Nov 15
Version 1.12

Video instructions for structure pack!
Brand new triple bond pack!
On boarding tutorial!

Mechanisms now reflects the order of how reaction mechanisms are taught in class
We added a goals button to the task card to make your experience more seamless
“Goals and hints” text are now easier on the eyes and more legible!
We moved the tutorial to category selection so you can find it easier!
A few minor user experience improvements have been made thanks to your feedback!

Aug 18
Version 1.11

- More content including Alcohols, Functional Groups of Oxygens and more.
- Improved navigation interface to find puzzles faster.
- Fixed bugs and molecular layout issues

Jul 21
Version 1.10

- 100 new Mechanisms puzzles
- Substitution reactions, SN1 and SN2
- Elimination reactions, E1 and E2
- A combination pack of SNX and EX reactions
- Carboxylic acids and derivatives reactions
- Electrophilic Aromatic Substitution reactions

Jun 29
Version 1.9

- Fixed a bug that prevented carbonyl puzzles from being played.

Jun 26
Version 1.8

- Added structure puzzles including resonance and hydride shifts.

Jun 23
Version 1.7

+ Adjusted hints on some puzzles
+ Fixed bug in tutorial 1

Jun 18
Version 1.6

- Completely revamped content with additional videos and scaffolding hints.
- Added the goal system to better guide users through puzzles.

May 16
Version 1.5

- Additional bug fixes in some puzzles.

May 02
Version 1.4

+ Added the Mechanisms Essential pack which includes 30 more puzzles and challenges.
+ Reworked the layout system to provide better automatic layout of molecules.
+ Added cloud storage of your progress.
+ Many more bug fixes.

May 01
Version 1.3

+ Added the Mechanisms Essential pack which includes 30 more puzzles and challenges.
+ Reworked the layout system to provide better automatic layout of molecules.
+ Added cloud storage of your progress.
+ Many more bug fixes.

Mar 17
Version 1.2

-improved animations
-bug fixes

Mar 13
Version 1.1

- Added 20+ puzzles: Acid/base, Addition, and Carbonyl reactions
- Improved animations
- Many bug fixes

Mar 02
Version 1.0

Previous 3 versions

This app has no ratings in the last 30 days.


Total Ratings