iORA vs Heterocycles
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iORA
Visualize chemical reactions in 3D using quantum-mechanical simulations. This free, interactive application makes complex chemistry concepts accessible and engaging for learners.
- 3D chemical reaction visualization
- Quantum-mechanical simulations
- Interactive learning
- Easy to use interface
- Educational tool
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iORA is a free, easy to use, highly interactive smartphone application that provides 3D visualization of chemical reactions based on quantum-mechanical simulations.
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!
Screenshots
Verdict
The clearest difference is in-app purchases: iORA at none against Heterocycles's 1. iORA also leads on update cadence (every 2 months vs every 11 months) and ratings volume (12 vs 2). 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. Heterocycles sells 1 one-off in-app purchase. iORA asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for iORA against 5.0 for Heterocycles. That said, the two scores are not equally well evidenced: iORA has 12 ratings behind it against 2, so its average is the more settled of the two.
iORA ships an update every 2 months, Heterocycles every 11 months. The most recent releases landed on September 7, 2026 and September 13, 2026 respectively.
| Parameter | iORA | Heterocycles |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (12 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | 2 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 40 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Ess | Clarity Applications |
Customer experience
iORA
Heterocycles
In-app purchases
iORA
No in-app purchases
Heterocycles
- Lifetime Access$4.99
