Shin Reaction Mechanism vs iORA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shin Reaction Mechanism
This application provides a quick search for hundreds of organic chemistry reaction mechanisms. It is designed to be an essential tool for students learning the subject.
- Hundreds of reaction mechanisms
- Quick search functionality
- Essential for organic chemistry learning
- Designed for students
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"Reaction Mechanisms" is essential for learning organic chemistry. SIN REACTION MECHANISMS is an application that gives you quick search over hundred varieties of reaction mecha
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.
Screenshots
Verdict
The clearest difference is in-app purchases: iORA at none against Shin Reaction Mechanism's 1. iORA also leads on ratings volume (12 vs 1) and review sentiment (100% vs 89%). Shin Reaction Mechanism's advantage is update cadence (every 4 weeks vs every 2 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. Shin Reaction Mechanism 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 Shin Reaction Mechanism against 5.0 for iORA. That said, the two scores are not equally well evidenced: iORA has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 89% of Shin Reaction Mechanism's written reviews are positive against 100% of iORA's.
Shin Reaction Mechanism ships an update every 4 weeks, iORA every 2 months. The most recent releases landed on June 24, 2026 and September 7, 2026 respectively.
| Parameter | Shin Reaction Mechanism | iORA |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (12 ratings) |
| Positive reviews | 89.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 12 — better |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.3 — better |
| Further details — not scored | ||
| Size | 176 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | junpei ono | Daniel Ess |
Customer experience
Shin Reaction Mechanism
iORA
In-app purchases
Shin Reaction Mechanism
- 詳細画面解放$2.99
iORA
No in-app purchases
Questions
Is Shin Reaction Mechanism free?
Is iORA free?
Which has better reviews, Shin Reaction Mechanism or iORA?
Do Shin Reaction Mechanism or iORA have ads?
Which is updated more often, Shin Reaction Mechanism or iORA?
Other comparisons
