OrgoMech: O-Chem Predictor
Reactions, Mechanisms & Plan
OrgoMech turns confusing reactions into clear, visual answers. Build a reactant, choose your reagents, and instantly see the major and minor products — plus the full electron-pushing mechanism, arrow by arrow.
Whether you are prepping for a midterm, your final, or the MCAT, OrgoMech helps you stop memorizing blindly and start understanding how reactions actually work — the exact arrow-pushing your professor wants to see on the exam.
Predict products fast: draw a molecule or pick a template, add reagents, and get the reaction. See every mechanism step-by-step. Learn the why — key points, major vs. minor products, and yields. Browse a reaction library: SN1/SN2, E1/E2, additions, carbonyls, aromatics, redox, and more. Study smarter with a personalized plan that counts down to your final.
OrgoMech Pro is an auto-renewable subscription for full access: weekly or yearly (price shown in the App Store). Payment charged to your Apple ID at confirmation. Renews unless canceled at least 24 hours before the period ends. Manage in Settings → Apple ID → Subscriptions.
Why this app
-
Predict products fast
Draw a molecule or pick a template, add reagents, see major and minor products.
-
Curved-arrow mechanisms
Step-by-step electron pushing — nucleophiles, leaving groups, pi bonds.
-
Learn the why
Key points, major vs. minor products, and yields that get tested.
-
Full reaction library
SN1/SN2, E1/E2, additions, carbonyls, aromatics, redox, and more.
-
Study plan to the exam
Personalized countdown so review is paced — midterm, final, or MCAT-style prep.
Organic chemistry does not have to wreck your GPA.
- Pre-meds who need mechanisms, not flashcard dumps
- Orgo 1 and Orgo 2 students before midterms and finals
- Anyone reviewing addition, carbonyl, and aromatic reactions
- Category
- Education
- Platform
- iOS 16.4+
- Price
- Free, with optional Pro
- Publisher
- Weblak
- Apple ID
- 6791093820
Frequently asked questions
Is OrgoMech a homework answer key?
No. It is a study tool to predict products and learn mechanisms. Use it to understand reactions — not to skip the work your course requires.
Does OrgoMech require a subscription?
Full access uses OrgoMech Pro (auto-renewable weekly or yearly). Prices shown in the App Store. Cancel in Apple ID → Subscriptions at least 24 hours before renewal.
Does it cover SN1, SN2, E1, and E2?
Yes — plus additions, carbonyls, aromatics, redox, and more in the reaction library, each with reagents, conditions, products, and mechanisms.
OrgoMech is an educational study aid, not a substitute for your course, textbook, lab, or instructor. Privacy and terms links are below (on-site privacy plus OrgoMech Terms of Use; Apple Standard EULA also applies for App Store subscriptions).
OrgoMech on iPhone
Organic chemistry does not have to wreck your GPA.
From the blog
-
SN1 vs SN2 explained: how to predict which substitution wins
Exams punish “primary = SN2” memorization. Learn the decision factors—substrate, nucleophile, leaving group, solvent—and how the mechanism actually unfolds.
-
Curved-arrow electron pushing: practice that sticks for exams
If you only memorize products, the blank mechanism page owns you. Curved arrows are the language graders read first.
-
Organic chemistry study plan that counts down to your final
Last-night memorizing fails orgo. A paced plan across SN, E, additions, and carbonyls—with mechanism redraws—does not.