Backside Attack vs Chemmunity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Backside Attack
This educational game helps students grasp fundamental organic chemistry concepts, specifically focusing on the SN2 reaction. It explores key variables like leaving group ability, nucleophilicity, steric factors, and solvent effects to build a strong foundation in chemistry.
- Learn SN2 reaction mechanics
- Explore leaving group ability
- Understand nucleophilicity
- Analyze steric factors
- Study solvent effects
- Earn points with Check Yourself +50
- Unlock Chem Yourself feature
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Backside Attack is an educational app targeting students learning organic chemistry for the first time. The game focuses on the SN2 reaction, which is often one of the first reactions students learn when studying organic chemistry. The SN2 reaction is great for educational purposes, as it provides a forum for students to learn about many common variables associated with chemical reactions, such as leaving group ability, nucleophilicity, steric factors, and solvent effects. The Backside Attack project is led by Dr. Neil Garg, an organic chemistry Professor at UCLA. He and six UCLA students (now alumni) devoted countless hours to creating the game flow and all content. The heroic students are: Tara Kappel, Preeya Mehta, William Parsons Stefan Prisacaru, Ernst Schmid, and Justin Soffer. Backside Attack is powered by Element26, Inc., thanks to Dr. Daniel D. Caspi. Students, be sure to: Learn even more and earn points by using the Check Yourself +50 feature on the scoring screen! Unlock the Chem Yourself feature by completing each topic!
Chemmunity
Master organic chemistry with interactive lessons, practice problems, and exams. An AI assistant provides instant answers and recommendations to help you succeed in your studies.
- Step-by-step explanations
- Interactive practice problems
- AI Study Assistant
- Concept videos
- Practice exams
- Guided study sessions
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Chemmunity makes it easier than ever to understand Organic Chemistry with step-by-step explanations, interactive practice problems and exams, and an AI Study Assistant to help answer your questions or recommend a video. Whether you're preparing for exams, reinforcing class material, or just looking for a better way to learn OCHEM, Chemmunity has you covered. WHAT’S INSIDE? - 120+ Concept Videos - Learn key organic chemistry 1 & 2 topics with clear, concise lessons. - ChemmunityAI - Our AI Study Assistant provides accurate and relevant responses to your organic chemistry questions. - 70+ Practice Problems - Test your understanding with common problems, complete with step-by-step video answers. - 15+ Practice Exams - Simulate real exam conditions with printable exams and detailed video breakdowns. - Study With Us Series - Watch guided study sessions to reinforce learning and feel like you're part of the group. - Comment on Videos - Ask questions on videos and get additional insights directly from our Subject Experts. OVER 30 OCHEM 1 & 2 TOPICS COVERED - Reaction Mechanisms - Stereochemistry - Spectroscopy (NMR, IR, MS) - Substitution and Elimination Reactions - Electrophilic Addition - Nucleophilic Addition and Substitution - Aromaticity and Reactions - Carboxylic Acids and Derivatives - Functional Groups - Structure and Bonding - AND SO MUCH MORE WHY CHOOSE CHEMMUNITY? - Clear, engaging explanations without the overwhelm - Learn at your own pace, anytime and anywhere - Interactive practice problems and exams to reinforce learning - AI Study Assistant available 24/7 to help when you need it most - A supportive learning environment where you can comment and engage with lessons MEET MELISSA Melissa Maribel, the creator of Chemmunity, is dedicated to helping students succeed in chemistry. After struggling with the subject herself, she changed the way she studied and went on to earn a B.A. in Chemistry. Now, with a YouTube channel of over 400,000 subscribers, Melissa continues to break down challenging chemistry concepts into simple, easy-to-understand lessons for students worldwide. Join thousands of students who are passing organic chemistry with ease using Chemmunity. Download now and start learning today! -- ▷ Already a Member? Sign-In to access your subscription. ▷ New? Subscribe in the app to get instant access. Chemmunity offers auto-renewing subscriptions. You'll receive unlimited access to content on all your devices. Payment is charged to your Account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews each month unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://chemmunity.com/pages/terms-of-service -Privacy Policy: https://chemmunity.com/pages/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Backside Attack at none against Chemmunity's 1. Backside Attack also leads on ratings volume (74 vs 2) and iOS requirement (9.0 vs 15.0). Chemmunity's advantage is update cadence (monthly vs every 8 months). On price, rating, ads and device support 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
Both are free to download. Chemmunity sells 1 in-app purchase, starting at $29.95 per month. Backside Attack asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Backside Attack against 5.0 for Chemmunity. That said, the two scores are not equally well evidenced: Backside Attack has 74 ratings behind it against 2, so its average is the more settled of the two.
Backside Attack ships an update every 8 months, Chemmunity monthly. The most recent releases landed on October 3, 2026 and September 25, 2026 respectively.
| Parameter | Backside Attack | Chemmunity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (74 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 95.5% of reviews | — |
| Number of ratings | 74 — better | 2 |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 178 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Element26, Inc. | Instructional Media Group LLC |
Customer experience
Backside Attack
Chemmunity
In-app purchases
Backside Attack
No in-app purchases
Chemmunity
- Pro Monthly Subscription$29.951 Month
Questions
Is Backside Attack free?
Is Chemmunity free?
Which has better reviews, Backside Attack or Chemmunity?
Do Backside Attack or Chemmunity have ads?
Which is updated more often, Backside Attack or Chemmunity?
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