MoziThermoCalc vs EqCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MoziThermoCalc
Read full descriptionHide full description
MoziThermoCalc – Thermodynamics & Equilibrium Solver MoziThermoCalc is a professional thermodynamic calculator designed for chemical engineering students and engineers who need accurate, fast, and reliable property and equilibrium calculations — directly on mobile. Built on NASA polynomial data and thermodynamic principles, the app provides scientific consistency and engineering-grade results in a clean, intuitive interface. Pure Component Thermodynamic Analysis Analyze ideal-gas thermodynamic properties with precision: • Heat Capacity (Cp) • Enthalpy (H) • Entropy (S) • Gibbs Free Energy (G) • Temperature-dependent property evaluation • NASA polynomial integration Instantly calculate properties over temperature ranges with reliable scientific accuracy. Chemical Reaction Equilibrium Solver Solve reaction equilibrium systems directly on your device: • Single and multi-reaction systems • Extent of reaction computation • Equilibrium composition determination • Gibbs energy–based calculations • Thermodynamic consistency Designed to handle nonlinear equilibrium problems in a simplified workflow. Temperature Sensitivity & Result Analysis Understand how temperature affects reaction behavior: • Equilibrium shift vs temperature • ΔH, ΔS, ΔG trend visualization • Scientific graph outputs • Clear engineering results Visual tools help you interpret thermodynamic behavior quickly and confidently. Designed For • Chemical engineering students • University coursework & exam preparation • Process engineers • Researchers and professionals Whether you're studying thermodynamics or analyzing reaction systems, MoziThermo provides a reliable mobile solution. Premium Features Upgrade to unlock advanced equilibrium modeling and enhanced analysis tools. Premium includes: • Multi-reaction system support • Extended temperature analysis • Advanced result visualization Why MoziThermoCalc? • Mobile-first engineering tool • Fast and intuitive workflow • Scientifically consistent calculations • Built specifically for thermodynamics Thermodynamics. Simplified. Powerful. Mobile. --- Subscription Terms MoziThermoCalc offers auto-renewable subscriptions to unlock premium thermodynamic and reaction analysis features. - Title: Mozi Premium - Length: Monthly and Annual subscriptions available - Payment will be charged to your Apple ID account at confirmation of purchase - Subscription automatically renews unless cancelled at least 24 hours before the end of the current period - You can manage or cancel your subscription in your App Store account settings Privacy Policy: https://mozithermocalc.vercel.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
EqCalc
Read full descriptionHide full description
EqCalc‑G is an educational and engineering reference tool for calculating gaseous chemical equilibrium using Gibbs free‑energy minimization. Designed for students, researchers, and practicing engineers, the app provides a fast, portable way to explore equilibrium behavior in hydrogen and hydrocarbon systems under ideal‑gas assumptions. Key Features: • Includes a publicly available thermochemical dataset derived from NASA curve‑fits of the NIST‑JANAF tables for selected species • Import your own thermochemical datasets in Aerotherm, Chemkin, or NASA CEA formats • Flexible reactant specification: - Define mixtures on a mole or mass basis - Or specify fuel mixture, air, and fuel‑air equivalence ratio • Export results easily by copying output to the clipboard for use in your favorite notes or spreadsheet apps Basic vs. Plus Version: The free Basic version supports fixed enthalpy and pressure equilibrium calculations. Upgrade to Plus version to unlock additional problem types: • Fixed temperature & pressure • Fixed entropy & pressure • Fixed internal energy & volume • Fixed temperature & volume • Fixed entropy & volume NASA/NIST Notice: Use of NASA and NIST thermochemical data does not imply endorsement, certification, recommendation, or approval of this app, its developer, or any results produced. NASA and NIST provide no warranties and assume no liability for the use of their data within this app. Privacy Policy: https://jtonouchi.github.io/EqCalc-G/privacy Terms and Conditions: https://jtonouchi.github.io/EqCalc-G/terms
Screenshots
Verdict
The clearest difference is device support: EqCalc at 2 against MoziThermoCalc's —. MoziThermoCalc's advantage is iOS requirement (15.1 vs 18.2). On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MoziThermoCalc sells 2 in-app purchases, starting at $2.99 per month and EqCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | MoziThermoCalc | EqCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 months |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 15.1 — better | 18.2 |
| Further details — not scored | ||
| Size | 65 MB | 11 MB |
| Age rating | 17+ | 17+ |
| Developer | Sina Gilassi | Jon Tonouchi |
In-app purchases
MoziThermoCalc
- Premium Monthly$2.991 Month
- Premium Yearly$24.991 Year
EqCalc
- Plus Version$2.99
Questions
Is MoziThermoCalc free?
Is EqCalc free?
Other comparisons















