H4E numbers vs pHCalculation
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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 Islamβs 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.
pHCalculation
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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!
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Verdict
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
Both are free to download. pHCalculation sells 5 one-off in-app purchases. H4E numbers asks for nothing beyond the download.
| Parameter | H4E numbers | pHCalculation |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 5 days |
| Ads | β | No |
| In-app purchases | No β better | Yes |
| Devices | β | iPhone, iPad β better |
| Requires iOS | 10.0 β better | 18.6 |
| Further details β not scored | ||
| Size | 43 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | HSC, Chulalongkorn University | Jatuphol Jaturapat |
In-app purchases
H4E numbers
No in-app purchases
pHCalculation
- Show solution$0.99
- Buffer Calculator$0.99
- Salt pH calculator$0.99
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- Reverse pH calculator$0.99
- Unlock All Features.$1.99
Questions
Is H4E numbers free?
Is pHCalculation free?
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