# pHCalculation — learn & calculate pH value

> learn & calculate pH value (iPhone/iPad app by Jatuphol Jaturapat.)

- Source: https://appshunter.io/ios/app/phcalculation/id6743737030 (this page in markdown: same URL + `.md`)
- Developer: [Jatuphol Jaturapat](https://appshunter.io/developer/1788860463)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 2 MB
- Languages: English
- Released: 2025-03-28
- Data updated: 2026-06-11
- User reviews in markdown: https://appshunter.io/ios/app/phcalculation/id6743737030/reviews.md

## What is pHCalculation?

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!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock All Features. | $1.99 | one-time |
| Show solution | $0.99 | one-time |
| Buffer Calculator | $0.99 | one-time |
| Salt pH calculator | $0.99 | one-time |
| Reverse pH calculator | $0.99 | one-time |



## Version history (last 5 releases)

### 26.5.1 — 2026-05-04

- Improved descriptions and calculations in some areas.

### 2.1 — 2025-08-19

- Added pH calculations for acids-bases with 1 and 2 protons.
- Calculate pH using Ka and Kb values.
- Back-calculate to find unknown values, such as concentration and Ka and Kb values.

### 2.0.2 — 2025-08-18

- Improved keyboard display on iPhone
- Fixed minor bugs

### 2.0.1 — 2025-08-16

- improve buffer description

### 2.0 — 2025-08-15

- New UI
- Shows how pH values are calculated

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## More apps by Jatuphol Jaturapat

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- [re-Code](https://appshunter.io/ios/app/re-code/id6756342835)

All apps by Jatuphol Jaturapat: https://appshunter.io/developer/1788860463

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*