Heterocycles vs SynStrategy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heterocycles
Master the names and applications of organic chemistry's heterocycles. This interactive app covers over 75 compounds with hundreds of examples and personalized review modes. Track your progress with achievements and learn about their roles in medicine and biology.
- 75+ heterocycles
- Hundreds of examples
- Multiple practice modes
- Personalized review
- Reference table
- Achievements
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Learn the names of heterocycles - all in an engaging and interactive format. If you’re puzzled by pyridines, quizzical about quinazolines, or interested in indolines, look no further. You’ll quickly become familiar with the most important nitrogen-, oxygen-, and sulfur-containing heterocycles, along with their applications in medicinal chemistry, biology, and beyond. The app features: • 75+ simple and advanced heterocycles • Hundreds of examples • Multiple practice modes • Personalized review • Reference table and definitions • Achievements to track your progress Along the way, you’ll learn interesting facts about pharmaceuticals, biomolecules, dangerous compounds, unique molecular structures, and more. Give it a try and let us know what you think!
SynStrategy
This app categorizes organic reactions by the functional groups they form, aiding chemists in synthetic analysis. It offers over 500 transformations and 400 synthesis examples, with detailed subdivisions for clarity.
- Reactions categorized by functional group
- 27 main functional group categories
- Over 500 transformations
- Over 400 total synthesis examples
- Subdivided functional group categories
- Highlights synthetic use cases
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SynStrategy is an organic chemistry app for anyone studying or working in organic synthesis. Its key feature is the categorization of named reactions and unnamed chemical reactions by the functional groups they form, helping students and practitioners navigate the vast landscape of organic transformations. The app features 27 main functional group categories, each further subdivided (for example, Alcohols include primary, secondary, tertiary, allylic, and homoallylic alcohols, and more). This structured organization gives chemists a clearer view of available transformations during synthetic and retrosynthetic analysis. SynStrategy currently includes over 500 organic chemistry reactions, with their synthetic use cases highlighted in more than 400 total synthesis examples. NEW: We've added the mechanisms for a collection of classic named oxidation reactions, with more to come. Each mechanism includes literature references you can look up for further detail. The first set covers the Albright-Goldman, Anelli, Babler-Dauben, Baeyer-Villiger, Ball-Goodwin-Morton, Collins, Corey-Gilman-Ganem, Corey-Kim, Corey-Schmidt, Corey-Suggs, Criegee, Dakin, Davis, Davis Asymmetric, and TEMPO oxidations. Beyond the reference library, SynStrategy includes interactive tools to help you study organic chemistry and organize these transformations. Save specific reactions into custom datasets that can be exported and shared with colleagues. Test your knowledge with the app's study modes: a Quiz system featuring three formats with multiple-choice and advanced questions on chemical reactions and total synthesis steps, plus a traditional Flashcard mode. Both modes include session analytics so you can track your progress. NEW: A Statistics dashboard now lets you review your quiz and flashcard results, see what you've studied, and get an overview of your activity in the app over time (More → Statistics). Whether you're preparing for an organic chemistry (orgo) exam, reviewing named reactions and mechanisms, or planning a synthesis in the lab, SynStrategy aims to be a useful organic chemistry companion. There are countless exceptional total syntheses and synthetically relevant methodologies in the literature, and we aim to grow the selection over time. Have a particular organic reaction or total synthesis example you'd like to see added? E-mail us: serviceofsynthesis@gmail.com Summary of Features: - Named and unnamed reactions, categorized by functional group - Over 500 organic chemistry transformations - Mechanisms for selected reactions (more to come) - Over 400 total synthesis examples - Create, export, and import custom reaction datasets - Multi-format Quiz system with session analytics - Dedicated Flashcard mode for systematic review - Statistics to review your results and activity in the app over time If you need support, please contact serviceofsynthesis@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: SynStrategy at none against Heterocycles's 1. SynStrategy also leads on update cadence (every 3 months vs every 11 months) and ratings volume (9 vs 2). Heterocycles's advantage is device support (3 vs 1). On price, rating, ads and iOS requirement 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. Heterocycles sells 1 one-off in-app purchase. SynStrategy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Heterocycles against 5.0 for SynStrategy. Both are backed by a comparable volume of ratings — 2 and 9 respectively.
Heterocycles ships an update every 11 months, SynStrategy every 3 months. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.
| Parameter | Heterocycles | SynStrategy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (9 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 9 — better |
| Update frequency | Every 11 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 17 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Clarity Applications | Willi M. Amberg |
Customer experience
Heterocycles
SynStrategy
In-app purchases
Heterocycles
- Lifetime Access$4.99
SynStrategy
No in-app purchases
Questions
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