Comparison

H4E numbers vs pHCalculation

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

Head to head
About

H4E numbers

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H numbers is a mobile application that meets the search. Food additives and Halal's E-Number compound that have been certified on the app, The users can check the trade mark and the certified company based on information from The Halal Science Center. Chulalongkorn University, Thailand. In the application, Users can fill out the E-Number needs to query data. When the search process is completed. The app will display the source and status of food additives. The state is divided by the religious law of Islam were divided into 4 status. 1. Halal By Fatwa refers to raw materials/ingredients derive from plants, natural minerals, chemical synthesis or biochemical fermentation process. These are affirmed by Sheikhul Islam’s Majlis Ulama of Thailand to be able to use in Halal food production. 2. Halal by Certification refers to raw materials/ingredients from meats, extracted/fermented materials that may contaminate with things that are impermissible to consume (najis) in production process. In Halal food production, it is important that each company be examined separately since one company usually adopts different process and steps in obtaining these ingredients. Thus, Halal food manufacturers should take them from companies that are certified by religious organizations. 3. Mashbooh refers to raw materials/ingredients derive from animals, extracted/ fermented materials that are unable to identify their source and unable to check their Halal status from any religious organizations, or materials that may contaminate with substances that cause biological, chemical, and physical hazards. All of these are assumed as Mushbooh or questionable status. 4. Unidentified refers to raw materials/ingredients, which has not yet been reviewed or endorsed by religious organizations.

About

pHCalculation

Features
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Introducing a Stunning New Interface! We've completely redesigned the app for a more intuitive and engaging experience. Our sleek, modern UI makes navigating through calculations effortless, allowing you to focus on what truly matters: understanding chemistry. pHCalculation is more than just a calculator; it's your personal chemistry tutor. Perfect for high school and college students who want to ace their exams and build unshakable confidence in acid-base chemistry. Key Features: - Step-by-Step Solutions: Don't just get the answer. See the full, detailed calculation for every problem, helping you truly understand the "why" behind the result. - Modern & Intuitive UI: Enjoy a beautiful, user-friendly design that makes learning chemistry a pleasure. - Comprehensive Learning Tool: Master everything from strong and weak acids/bases to salt solutions and complex buffer systems. - Advanced Reverse Calculations: Easily find the acid or base dissociation constants (Ka/Kb) to deepen your understanding of chemical principles. - Academically Accurate: Systematically tested to ensure every calculation is precise, helping you solve problems quickly and correctly. Download pHCalculation today and transform complex chemistry concepts into an accessible, interactive learning experience!

Screenshots

H4E numbers4 screens
pHCalculation4 screens

Verdict

The call

The clearest difference is in-app purchases: H4E numbers at none against pHCalculation's 5. H4E numbers also leads on iOS requirement (10.0 vs 18.6). pHCalculation's advantage is device support. On price there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. pHCalculation sells 5 one-off in-app purchases. H4E numbers asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
H4E numbers versus pHCalculation: the parameters behind the verdict, then further details
ParameterH4E numberspHCalculation
PriceFreeFree
Update frequencyβ€”Every 5 days
Adsβ€”No
In-app purchasesNo β€” betterYes
Devicesβ€”iPhone, iPad β€” better
Requires iOS10.0 β€” better18.6
Further details β€” not scored
Size43 MB2 MB
Age rating4+4+
DeveloperHSC, Chulalongkorn UniversityJatuphol Jaturapat

In-app purchases

None

H4E numbers

No in-app purchases

5 purchases

pHCalculation

One-time5
  • Show solution$0.99
  • Buffer Calculator$0.99
  • Salt pH calculator$0.99
Show 2 more
  • Reverse pH calculator$0.99
  • Unlock All Features.$1.99

Questions

Is H4E numbers free?
H4E numbers is free to download, with no in-app purchases.
Is pHCalculation free?
pHCalculation is free to download, with in-app purchases available.

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