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:
Privacy Policy:

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

What’s New

Version 1.18

- Fixed a bug causing assignment submission to fail.

- Small puzzle fixes and changes.

Ratings and Reviews

3.7 out of 5
23 Ratings

23 Ratings

[]^luke83^lk ,

Good but still needs work

Need more levels and at time instructions

Developer Response ,

Thanks for your feedback. We are working on both of these.

Mr. Krip ,

The App for Learning (and Teaching) Organic Chemistry

This app has merged two all-to-often disparate attributes of educational tools: good science and good artistic / design. Although Alchemie is still in the process of refining their approaches to this design, this app synthesizes theory with an intuitive approach that makes chemical principles much more palatable for the student. Give the app a serious try; it is sure to become indispensable for first and second year chemistry students (and teachers too!).

arjun90 ,


Purchased full access to the app for $9.99 but still hasn't enabled full access

Need to submit a dispute

Developer Response ,

Hello arjun90,
We are sorry to hear that you are having a problem with the app. We would like you to contact us at to solve this issue right away. We hope to hear from you soon!


Alchemie Solutions, Inc
162.5 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Copyright 2019 Alchemie Solutions, Inc.
In-App Purchases
  1. Full Access - 6 months $9.99
  2. Full Access $9.99
  3. Mechanisms Essentials $7.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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