# ChemCalc - Mole Calculator — Moles, Mr & Equation Balancer

> Moles, Mr & Equation Balancer (iPhone/iPad app by Paul Leadbeater.)

- Source: https://appshunter.io/ios/app/chemcalc-mole-calculator/id6761809351 (this page in markdown: same URL + `.md`)
- Developer: [Paul Leadbeater](https://appshunter.io/developer/1888748038)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: English
- Released: 2026-04-15
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/chemcalc-mole-calculator/id6761809351/reviews.md

## What is ChemCalc?

ChemCalc is the ultimate chemistry calculator built for students. Whether you're studying for GCSEs, A-Levels, or the IB Diploma, ChemCalc instantly solves the most time-consuming chemistry calculations so you can focus on understanding the concepts.

5 ESSENTIAL CALCULATORS IN ONE APP:

• Mass & Mr Calculator: Instantly calculate molar mass (Mr), mass, and moles using the interactive formula triangle with common compound shortcuts.

• Concentration Calculator: Work out molarity, volume, or moles with full, exam-style step-by-step working and revision tips.

• Gas Volume Calculator: Solve gas volume problems at room temperature and pressure (RTP) with clear visual guides.

• Reacting Masses (Pro): Calculate theoretical yields and exact reactant masses across balanced chemical equations. Essential for quantitative chemistry.

• Equation Balancer (Pro): Type in any chemical equation and get perfectly balanced stoichiometry in seconds.

WHY STUDENTS LOVE CHEMCALC:

 Step-by-step working for every calculation, not just the answer
 Interactive formula triangles that teach you the method
 Built-in exam tips and revision guidance
 Beautiful light and dark mode
 Works completely offline, perfect for revision sessions
 No ads on free features

ChemCalc is part of the Chemistry Made Easy ecosystem 

Download now and make chemistry calculations effortless.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ChemCalc Pro | $1.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-04-16

• New iOS Haptics: The calculator now features native haptic feedback for a premium feel (toggleable in the new Settings menu).

• RTP vs STP: Added a new toggle to switch between Room Temperature & Pressure (24 dm³) and Standard Temperature & Pressure (22.4 dm³), perfect for both GCSE and IB students.

• UI Polish: Fluid navigation animations, subscript formatting for balanced chemical equations (e.g., H₂O), and real-time Mr calculation badges.

• Auto-formatting: Huge numbers now automatically format into readable scientific notation.

• Resolves an issue with In-App Purchase validation and dark mode persistence.

### 1.0 — 2026-04-15

No release notes.

## More apps by Paul Leadbeater

- [ChemEasy – Chemistry Revision](https://appshunter.io/ios/app/chemeasy-chemistry-revision/id6761298561)
- [ChemPlan - IB](https://appshunter.io/ios/app/chemplan-ib/id6761624255)

All apps by Paul Leadbeater: https://appshunter.io/developer/1888748038

---

*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 2026-06-01.*