Comparison

Catalytic Reaction Guide vs box4metal.com

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

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.

Highlights
  • Updated and faster catalog
  • Customizable interface
  • Advanced filtering options
  • Feature-rich cart
  • New UI
Features
Read full description

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

Catalytic Reaction Guide4 screens
box4metal.com4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Catalytic Reaction Guide versus box4metal.com: the parameters behind the verdict, then further details
ParameterCatalytic Reaction Guidebox4metal.com
PriceFreeFree
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews71.4% of reviews—
Number of ratings33
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size105 MB28 MB
Age rating4+4+
DeveloperJohnson Matthey PLCAemetriks Project Management LLC

Customer experience

Catalytic Reaction Guide

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

box4metal.com

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Catalytic Reaction Guide

No in-app purchases

None

box4metal.com

No in-app purchases

Questions

Is Catalytic Reaction Guide free?
Catalytic Reaction Guide is free to download, with no in-app purchases.
Is box4metal.com free?
box4metal.com is free to download, with no in-app purchases.
Which has better reviews, Catalytic Reaction Guide or box4metal.com?
Catalytic Reaction Guide and box4metal.com are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do Catalytic Reaction Guide or box4metal.com have ads?
Neither Catalytic Reaction Guide nor box4metal.com shows ads.
Which is updated more often, Catalytic Reaction Guide or box4metal.com?
Catalytic Reaction Guide ships an update every 4 months, and box4metal.com every 3 weeks. Most recently, Catalytic Reaction Guide was updated on November 1, 2026 and box4metal.com on November 3, 2026.

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