Catalytic Reaction Guide vs box4metal.com
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Catalytic Reaction Guide
This app offers a comprehensive guide to catalytic reactions, providing recommendations for catalysts, temperatures, and solvents for over 150 reactions. It also includes a searchable product listing, literature references, and contact information for businesses. Users can save favorite products and request technical information or quotes.
- Catalyst recommendations for 150+ reactions
- Reaction temperature and solvent details
- Chemical Abstracts Service (CAS) searchable product listing
- Relevant literature references
- Global contact information
- Save favorite products
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Catalysis at your fingertips. The Catalytic Reaction Guide provides you with catalyst recommendations on over 150 reactions in the area of homogeneous, heterogeneous and asymmetric catalysis. The CRG is an essential tool for any chemist, researcher or purchaser working with catalysis. Details on each reaction are provided, including recommended catalysts, reaction temperature, solvents and relevant literature references. In addition to catalyst recommendations, the app features a convenient Chemical Abstracts Service (CAS) searchable product listing and relevant literature references as well as global contact information and office locations. Once a catalyst has been selected, product details are shown with the option to request technical information, request a quote or share on social media or by email. Save favourite products for easy access anywhere.
box4metal.com
This app provides a fast and convenient catalog of catalytic converters with a customizable interface. Users can filter information based on their specific needs and criteria, and manage items with a feature-rich cart.
- Updated and faster catalog
- Customizable interface
- Advanced filtering options
- Feature-rich cart
- New UI
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A new version of box4metal catalytic converter catalogue with new UI and powerful features. The catalyst catalogue has been updated and is now faster and more convenient, as well as the handy and feature rich cart. The catalogue is customizable according to every users needs, while displaying only the necessary information, as well as the ability to filter the catalogue according to preferred criteria.
Screenshots
Verdict
The clearest difference is update cadence: box4metal.com at every 3 weeks against Catalytic Reaction Guide's every 4 months. Catalytic Reaction Guide's advantage is iOS requirement (7.0 vs 15.0). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Catalytic Reaction Guide against 5.0 for box4metal.com. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
Catalytic Reaction Guide ships an update every 4 months, box4metal.com every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Catalytic Reaction Guide | box4metal.com |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 3 | 3 |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 105 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Johnson Matthey PLC | Aemetriks Project Management LLC |
Customer experience
Catalytic Reaction Guide
box4metal.com
In-app purchases
Catalytic Reaction Guide
No in-app purchases
box4metal.com
No in-app purchases
Questions
Is Catalytic Reaction Guide free?
Is box4metal.com free?
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