Comparison

Chemical Solution Wizard vs Thermonator Thermodynamics

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Chemical Solution Wizard

Features
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Chemical Solution Wizard has been designed to help with preparation and parameterization of complex chemical solutions and derivation of molar weight from chemical formula. Numerous parameters of the complex mixture, such as molarity, molality, mg/ml, solute moles, total volume etc. can be calculated based upon initial data provided, such as: initial molar concentrations of the starting solutions, initial volumes, desired molar ratios and additional solvent volume (dilution). This application targets two main solution preparation tasks: First, "Mixture of Solutions", makes it easy to parameterize complex mixture of several initially provided solutions. And second, "Dissolution", deals with solution formed by dissolution of solid solutes. Layout of "Mixing solutions". Each row represents initial solution, which is going to be mixed to produce a final complex solution. The initial solution parameters to start with are: solute’s molar weight (optional), solute’s molar concentration and volume of the initial solution. Last cell represents molar fraction of the particular solute in the final solution that will be calculated automatically or may be adjusted later on to get the desired components ratio. Bottom row represents final solution parameters: volume of pure solvent that optionally can be added to dilute the solution, Total Molarity and Total solution volume, that can be adjusted at any time, on condition that molar concentrations of the initial solution/s are provided. Layout of "Dissolution". Similarly, each row represents different compound (solid this time) that will be dissolved in the known final volume of the resulting solution. “Solute moles” are the output only cells that will be filled automatically. Final solution parameters row is comprised of absolutely required final solution volume cell and optional final density cell, which may come in handy for calculation of molality. Application features: Unlimited number of components is available. Additional components are added by touching “Solution (+)” field and deleted by touching the top right title field signed with (-). The components list is numbered and scrollable. The application is fully interactive: all parameters are updated instantly after any input that confirmed by pressing "Done" button in the keyboard! (if data is sufficient, otherwise warning will be shown). CSW is now includes molar weight analyser. Pressing of the arrow button in Mw field derives the molar weight of molecular formula in the name field. Examples of supported molecular formula styles: MnSO4.H2O, MnSO4*H2O, (NH4)2CrO4, (NH4)2Fe(SO4)2.6H2O, Ba(C2H3O2)2. In “Mixture”, if molecular weights (Mw, units "g/mole") of solutes are provided as well, then concentrations in units of grams of solute per litre of solution ("g/l" equivalent to "mg/ml") will be calculated. In "Dissolution", long press on Total Molarity title field will call the menu, where user can choose the options for solution parameters adjustment upon change in total molarity. Please check the molar ratios to ensure that all starting components are included! The application will expel components for which insufficient data is provided! Thus, for example concentration in mg/ml cannot be calculated if Mw of solute is not provided. Similarly, Molality cannot be calculated if final solution density is missing. If user updates molar ratios (percents only), application will not start the calculation until sum of the ratios will be 100 exactly and obviously, not before than initial concentrations (in "Mixing solutions") or Mw (in "Dissolution") are provided. Total Concentration in "mg/ml", Total Moles and Molality fields are for output only. Please confirm input by pressing "Done" or "Enter" button in the keyboard to let application know that data is ready. Application is not sensitive for an unconfirmed input for a good reason. Application assigns dot as a decimal separator.

About

Thermonator Thermodynamics

This app serves as a comprehensive thermodynamic calculator, assisting with problems from engineering textbooks. It quickly computes steam tables for various substances and offers educational aids like step-by-step calculations and concept reminders.

Highlights
  • Thermodynamic calculations
  • Steam table computation
  • Step-by-step solutions
  • Interactive graphs
  • Unit conversion
  • Results sharing
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- Thermodynamic calculator to solve problems and exercises from Thermodynamic Engineering books. - Quickly calculates steam tables for water, air, ideal gases, refrigerants and other substances. - Contains help and explanations of the main theoretical concepts, equations, first and second thermodynamic laws, etc. FUNCTIONALITIES No advertising. Interactive graph. Share results. Educational aids - Step-by-step calculations. - Solved exercises. - Quick reminders on thermodynamic concepts and formulas. Settings - Control system: Control mass, Control volume. - Sign convention: ΔU = Q − W, ΔU = Q + W. - Reference state: Normal boiling point, ASHRAE, IIR, Çengel-Boles, Moran-Shapiro, Reynolds, Sonntag-Van Wylen-Borgnakke. - Dead state: EPA, ISO, IUPAC, NIST. - Units: International System of Units, Imperial System of Units, Traditional US units. Calculations - Properties: State, Saturation, Process, Cycle. - Calculation of states, processes, and cycles. - Warnings for sensitive calculations: Critical point, Saturation dome (PT), Liquid (v), Gas (Th). - Processes: Polytropic, Isobar, Isotherm, Isochore, Isenthalpic, Adiabatic. - Substances: Water, Noble gases, Ideal gases, Ideal gases (cp Variable), Custom gas. Calculation wizards - Units converter: Pressure, Temperature, Volume, Mass, Energy, Power. - Interpolation: One dimension, Two dimensions. - Mass: Calculate the properties that depend on the mass. - Saturation: Calculate the states of saturated liquid and saturated vapor. Results reports - Substances: Formula, Molecular mass, Critical point, Normal boiling point, Specific heat. - Summary: Settings, States, Processes, Cycles. - Calculations: Step-by-step calculations. - Balances: Mass balance. PREMIUM Calculations - Processes: Irreversible, Inlet+Exit, Branches, Reheating, Subcooling. - Substances: Real substances (Acetone, Air, Ammonia, Benzene, Butane, Carbon dioxide, Ethane, Ethanol, Ethylene, Heptane, Hexane, Isobutane, Isopentane, Methane, Nitrogen, Octane, Oxygen, Pentane, Propane, Propanol, Propylene, R-11, R-114, R-12, R-123, R-1234yf, R-124, R-13, R-134a, R-14, R-22, R-23, R-32, R-404a, R-407c, R-410a, R-500, R-502, R-507a, R-C318, SES36, Water). Calculation wizards - Energy balance: Solve exercises of Unknown process, Internal friction, Kinetic energy, Potential energy, etc. - Entropy balance: Solve exercises of Internal generated entropy, External generated entropy, Universe entropy increment, Destroyed exergy, etc. - Heat exchangers: Generic, Closed, Open, Mixed. - Cycles: Automatically solve 24 types of cycles. Basic cycles (1 Cycle), Combustion engines (4 Cycles), Gas turbine (5 Cycles), Steam turbine (2 Cycles), Steam turbine with regenerative preheating (4 Cycles), Vapor-compression refrigeration (6 Cycles), Gas refrigeration (2 Cycles). Results reports - Balances: Energy balance, Boundary work, Entropy balance, Internal generated entropy, External generated entropy, Universe entropy increment, Destroyed exergy (Irreversibility). Exercises - Open and save exercises. Terms of use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Chemical Solution Wizard3 screens
Thermonator Thermodynamics4 screens

Verdict

The call

The clearest difference is price: Thermonator Thermodynamics at Free against Chemical Solution Wizard's $3.99. Thermonator Thermodynamics also leads on update cadence (every 3 weeks vs every 4 months). Chemical Solution Wizard's advantage is in-app purchases (none vs 6). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Thermonator Thermodynamics is free to download; Chemical Solution Wizard costs $3.99 up front. Thermonator Thermodynamics sells 6 in-app purchases, starting at $2.99 per 7 days. Chemical Solution Wizard asks for nothing beyond the download.

UpkeepUpdate frequency

Chemical Solution Wizard ships an update every 4 months, Thermonator Thermodynamics every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 6 level
Chemical Solution Wizard versus Thermonator Thermodynamics: the parameters behind the verdict, then further details
ParameterChemical Solution WizardThermonator Thermodynamics
Price$3.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size1 MB46 MB
Age rating4+4+
DeveloperRoman VolinskyTomas Gomez Martin

In-app purchases

None

Chemical Solution Wizard

No in-app purchases

6 purchases

Thermonator Thermodynamics

Subscriptions6
  • Premium - 1 week$2.997 Days
  • Premium - 1 month$3.991 Month
  • Premium - 6 months$4.996 Months
Show 3 more
  • Premium - 1 month$5.991 Month
  • Premium Student - 6 months$8.996 Months
  • Premium Pro - 6 months$9.996 Months

Questions

Is Chemical Solution Wizard free?
Chemical Solution Wizard costs $3.99, with no in-app purchases.
Is Thermonator Thermodynamics free?
Thermonator Thermodynamics is free to download, with in-app purchases available.
Do Chemical Solution Wizard or Thermonator Thermodynamics have ads?
Neither Chemical Solution Wizard nor Thermonator Thermodynamics shows ads.
Which is updated more often, Chemical Solution Wizard or Thermonator Thermodynamics?
Chemical Solution Wizard ships an update every 4 months, and Thermonator Thermodynamics every 3 weeks. Most recently, Chemical Solution Wizard was updated on October 29, 2026 and Thermonator Thermodynamics on October 25, 2026.

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