# Chem Calc — Pocket chemistry calculator > Pocket chemistry calculator for solving chemical problems, balancing equations, and performing calculations. (iPhone/iPad app by Fanis Kalimullin.) - Source: https://appshunter.io/ios/app/chem-calc/id6744528457 (this page in markdown: same URL + `.md`) - Developer: [Fanis Kalimullin](https://appshunter.io/developer/1670198215) - Category: Productivity, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 26.0 · 76 MB - Languages: American English - Released: 2025-06-23 - Data updated: 2026-07-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/chem-calc/id6744528457/reviews.md ## What is Chem Calc? Chem Calc is a powerful and easy-to-use chemistry calculator for students, teachers, and professionals. It helps you solve chemical problems, balance equations, and perform accurate calculations — both online and offline. Most features work offline. Internet access is required only for reaction search. Key Features Interactive Periodic Table Explore all chemical elements with detailed properties: - atomic number and atomic mass - electron configuration - electronegativity - atomic radius and oxidation states - standard state and physical properties Tap any element to view full information. Reaction Search and Equation Balancer - Search for common inorganic and organic reactions - Automatic equation balancing - Correct stoichiometric coefficients - Support for complex formulas and brackets Molar Mass Calculator Calculate molar mass for any valid chemical formula (for example: C6H12O6, Fe2O3, KMnO4). - detailed element breakdown - support for nested brackets - crystal hydrates (CuSO4·5H2O) - pH and Acid–Base Calculations - pH calculation for acids and bases - concentrations of H⁺ and OH⁻ - support for weak acids and bases using pKa / pKb Gas Laws and Ideal Gas Calculator Solve problems using the ideal gas equation PV = nRT. - pressure, volume, temperature, amount of substance - automatic unit conversion (Pa, atm, mmHg, L, mL, K, °C) Concentration and Dilution Tools - molarity, molality, normality - mass fraction and volume fraction - dilution and solution mixing calculations Calculation History All recent calculations are saved so you can quickly return to previous results. Unit Converter Convert: - mass, volume, amount of substance - concentration units - number of particles (Avogadro’s number) Change units without re-entering values. Why Choose Chem Calc - Accurate and reliable data based on standard chemistry references - Clean and intuitive interface - Works offline for most calculations - Suitable for school, university, and laboratory use Regular updates with new features and improvements Download Chem Calc and keep all essential chemistry calculations in one app — no paper tables or external references needed. Follow updates: https://t.me/chemcalc_en Privacy Policy: https://www.notion.so/Privacy-Policy-204d504d7d5a80218d28dee6633990d5?source=copy_link Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Interactive Periodic Table with element properties - Reaction search and automatic equation balancing - Molar mass calculator with detailed breakdown - pH and Acid–Base calculations - Ideal Gas Law solver - Concentration and dilution tools - Calculation history and unit converter ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pro subscription (1 Month) | $1.99 | per month | | Premium Yearly (1 year) | $19.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Premium | $5.99 | one-time | ## Frequently asked questions about Chem Calc ### Does Chem Calc have ads? No, Chem Calc does not contain advertisements. It offers a clean, ad-free experience for all its users. ### What is the pricing for Chem Calc? Chem Calc is free to download and use. It offers optional Pro and Premium Yearly subscriptions for advanced features at $1.99/month and $19.99/year, respectively. ### Can I use Chem Calc offline? Yes, most features of Chem Calc work offline, including the periodic table, molar mass calculator, and equation balancer. Internet access is only required for the reaction search function. ### What devices is Chem Calc available on? Chem Calc is available on iPhone, iPad, and iPod devices, supporting iOS. ### How often is Chem Calc updated? Chem Calc receives regular updates with new features and improvements. The latest version, 1.8.3, was last updated on May 20, 2026. ### What kind of chemistry calculations can Chem Calc perform? Chem Calc can perform a wide range of calculations, including molar mass, pH, acid-base calculations, gas laws (PV=nRT), concentration, and dilution. It also includes an equation balancer and a reaction search. ### Does Chem Calc offer a free trial for its subscriptions? The provided data does not specify if a free trial is offered for the Pro or Premium Yearly subscriptions. Users should check within the app for trial period details. ### What is the age rating for Chem Calc? Chem Calc has an age rating of 4+, making it suitable for a wide range of users, including young students. ## Version history (last 5 releases) ### 1.11.0 — 2026-07-15 What's new in this version - Compound search: find any substance by name or formula and get its structure, molar mass, formula, IUPAC name, key properties and description. - Safety data: melting and boiling points, density, solubility and GHS hazard information with pictograms — shown in your language. - Performance and stability improvements, plus interface fixes. Compound search requires an internet connection; the other tools work offline. ### 1.10.1 — 2026-07-05 What's new in this version - Compound search: find any substance by name or formula and get its structure, molar mass, formula, IUPAC name, key properties and description. - Safety data: melting and boiling points, density, solubility and GHS hazard information with pictograms — shown in your language. - Performance and stability improvements, plus interface fixes. Compound search requires an internet connection; the other tools work offline. ### 1.8.3 — 2026-05-20 New: Home screen widgets — quick access to Molar mass calculator, Equation balancer, Periodic table, and pH calculator right from your home screen. Bug fixes and performance improvements. ### 1.6.1 — 2026-05-11 • Onboarding for new users — quick intro to all tools • Reaction search in the equation balancer • Balancer UX improvements ### 1.6.0 — 2026-05-10 Equation Balancer update: • Similar reactions appear as you type — tap to apply • Quick-insert bar: → + = without switching keyboards • Field turns green when equation is ready • Instant format hints while typing ## Apps similar to Chem Calc | App | Rating | Price | Category | | --- | --- | --- | --- | | [HabitRise: Progress Tracker](https://appshunter.io/ios/app/habitrise-progress-tracker/id6504728893) | 5.0 (3) | Free | Productivity | | [Smart Consumer](https://appshunter.io/ios/app/smart-consumer/id1186685533) | 1.0 (2) | Free | Productivity | | [Paraphrase+](https://appshunter.io/ios/app/paraphrase-plus/id6469493180) | 4.8 (20) | Free | Productivity | | [ADHD Planner and Calendar](https://appshunter.io/ios/app/adhd-planner-and-calendar/id1644831826) | 4.8 (67) | Free | Productivity | | [PDF Converter • Photos to PDF](https://appshunter.io/ios/app/pdf-converter-photos-to-pdf/id6747472841) | 4.3 (3) | Free | Productivity | | [Join PDF - StitchPDF Merge](https://appshunter.io/ios/app/join-pdf-stitchpdf-merge/id6748023964) | 5.0 (2) | Free | Productivity | ## More apps by Fanis Kalimullin - [AimiApp: train words](https://appshunter.io/ios/app/aimiapp-train-words/id1670204656) All apps by Fanis Kalimullin: https://appshunter.io/developer/1670198215 --- *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 2026-07-20.*