Comparison

DWSIM Simulator vs Mathpix Snip

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

Head to head
About

DWSIM Simulator

This app provides a powerful offline chemical process simulation tool. It allows engineers to build complex process models, perform thermodynamic calculations, and analyze various unit operations. Features include a touch-enabled PFD interface, extensive compound databases, and advanced calculation engines.

Highlights
  • Offline chemical process simulation
  • Touch-enabled PFD drawing interface
  • Extensive thermodynamic models
  • Compound database for 1500+ compounds
  • Unit operation models
  • Chemical reaction and reactor support
  • Flowsheet parametric studies
Features
Read full description

DWSIM Simulator is a Steady-State Chemical Process Simulator, featuring: - Offline functionality: no need to connect to online databases or servers, DWSIM runs completely offline on your device, wherever you are! - Touch-enabled Process Flowsheet Diagram (PFD) Drawing Interface: A hardware-accelerated PFD interface with touch support allows Chemical Engineers to build complex process models in a few minutes - VLE/VLLE/SVLE/SVLLE calculations using Equation of State and Activity Coefficient models: calculate fluid properties and phase distribution with advanced thermodynamic models - Compound database with extensive data for more than 1500 compounds - Rigorous Thermodynamic Models*: PC-SAFT EOS, GERG-2008 EOS, Peng-Robinson EOS, Soave-Redlich-Kwong EOS, Lee-Kesler-Plöcker, Chao-Seader, Modified UNIFAC (Dortmund), UNIQUAC, NRTL, Wilson, Raoult's Law and IAPWS-IF97 Steam Tables - Thermophysical state (phase) properties: Enthalpy, Entropy, Internal Energy, Gibbs and Helmholtz Free Energies, Compressibility Factor, Isothermal Compressibility, Bulk Modulus, Speed of Sound, Joule-Thomson Expansion Coefficient, Density, Molecular Weight, Heat Capacity, Thermal Conductivity and Viscosity - Single-compound properties: Critical Parameters, Acentric Factor, Chemical formula, Structure formula, CAS Registry Number, Boiling Point Temperature, Vapor Pressure, Heat of Vaporization, Ideal gas Enthalpy, Ideal gas Enthalpy of Formation at 25 C, Ideal Gas Gibbs Free Energy of Formation at 25 C, Ideal Gas Entropy, Heat Capacity Cp, Ideal Gas Heat Capacity, Liquid Heat Capacity, Solid Heat Capacity, Heat Capacity Cv, Liquid Viscosity, Vapor Viscosity, Liquid Thermal Conductivity, Vapor Thermal Conductivity, Solid Density, Liquid Density and Molecular Weight - Comprehensive Unit Operation Model set*, including Mixer, Splitter, Separator, Pump, Compressor, Expander, Heater, Cooler, Valve, Shortcut Column, Heat Exchanger, Component Separator, Pipe Segment, Rigorous Distillation and Absorption Columns, Wind Turbine, Hydroelectric Turbine, Water Electrolyzer and Solar Panel - Support for Chemical Reactions and Reactors*: DWSIM features support for Conversion, Equilibrium and Kinetic reactions, together with their respective Reactor models - Flowsheet Parametric Studies: Use the Sensitivity Analysis Tool to run automated parametric studies on your process model; The Flowsheet Optimizer tool can bring the simulation to an optimum state according to user-defined criteria; The Calculator tool can read flowsheet variables, perform math operations on them and write the results back to the flowsheet - Petroleum Characterization: Bulk C7+ and TBP Distillation Curve characterization tools enable creation of pseudocompounds to simulate petroleum processing facilities - Parallel multicore CPU calculation engine: a fast and reliable flowsheet solver that takes advantage of the multicore CPUs on modern mobile devices - Save/Load XML simulation files on the device or in the cloud - Export simulation results to PDF and Text documents * Some items are available through in-app purchases ABOUT CHEMICAL PROCESS SIMULATION Chemical Process Simulation is a model-based representation of chemical, physical, biological, and other technical processes and unit operations in software. Basic prerequisites are a thorough knowledge of chemical and physical properties of pure components and mixtures, of reactions, and of mathematical models which, in combination, allow the calculation of a process in a computing device. Process simulation software describes processes in flow diagrams where unit operations are positioned and connected by product or educt streams. The software has to solve the mass and energy balance to find a stable operating point. The goal of a process simulation is to find optimal conditions for a process.

About

Mathpix Snip

Transform handwritten notes and PDFs into editable, searchable documents. Convert images of equations into various formats like LaTeX. Sync your work across devices for seamless access.

Highlights
  • Handwriting to editable Markdown
  • Convert equations to LaTeX
  • Searchable PDF creation
  • Cross-device syncing
  • Export to DOCX, LaTeX, Overleaf
Features
Read full description

Mathpix - the PDF and notes app for STEM researchers and professionals, powered by next generation OCR - Convert your handwriting to editable and searchable Markdown documents that can be exported to DOCX, LaTeX, Overleaf, or PDF, with our document conversion technology - Create searchable PDFs seamlessly with your camera with configurable image filters, that can be read, searched, exported, or downloaded on any device, including the Snip web app at snip.mathpix.com - The ultimate personal PDF and Notes cloud for researchers: your documents sync seamlessly across devices, including the Snip web app at snip.mathpix.com - Draw equations directly on your device or take pictures of them, and convert to LaTeX, MathML, Asciimath, Markdown, and more Website: mathpix.com Web app: snip.mathpix.com Twitter: @MathpixApp

Screenshots

DWSIM Simulator4 screens
Mathpix Snip4 screens

Verdict

The call

The clearest difference is in-app purchases: Mathpix Snip at none against DWSIM Simulator's 10. Mathpix Snip also leads on review sentiment (76% vs 57%). DWSIM Simulator's advantage is iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and update cadence 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

Both are free to download. DWSIM Simulator sells 10 one-off in-app purchases. Mathpix Snip asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for DWSIM Simulator against 4.5 for Mathpix Snip. Both are backed by a comparable volume of ratings — 105 and 141 respectively. Written reviews are what separate them: 57% of DWSIM Simulator's written reviews are positive against 76% of Mathpix Snip's.

UpkeepUpdate frequency

DWSIM Simulator ships an update every 6 weeks, Mathpix Snip every 5 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
DWSIM Simulator versus Mathpix Snip: the parameters behind the verdict, then further details
ParameterDWSIM SimulatorMathpix Snip
PriceFreeFree
Rating4.6 (105 ratings) — better4.5 (141 ratings)
Positive reviews57.1% of reviews76.0% of reviews — better
Number of ratings105141 — better
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size106 MB53 MB
Age rating4+4+
DeveloperDaniel MedeirosMathpix

Customer experience

DWSIM Simulator

All ratings105 ratings
Positive91.4%
Neutral3.8%
Negative4.8%
Written reviews7 reviews
Positive57.1%
Neutral28.6%
Negative14.3%

Mathpix Snip

All ratings141 ratings
Positive87.9%
Neutral1.4%
Negative10.6%
Written reviews125 reviews
Positive76.0%
Neutral4.8%
Negative19.2%

In-app purchases

10 purchases

DWSIM Simulator

One-time10
  • User-Defined Unit Set$1.99
  • Flowsheet Utilities Pack$2.99
  • Unit Operations Pack 1$2.99
Show 7 more
  • Unit Operations Pack 2$2.99
  • Unit Operations Pack 3$2.99
  • Activity Coeff. Model Pack$3.99
  • Equation of State Model Pack$3.99
  • Reactor Models Pack$4.99
  • Unlock All Features$9.99
  • Unlock All Features$39.99
None

Mathpix Snip

No in-app purchases

Questions

Is DWSIM Simulator free?
DWSIM Simulator is free to download, with in-app purchases available.
Is Mathpix Snip free?
Mathpix Snip is free to download, with no in-app purchases.
Which has better reviews, DWSIM Simulator or Mathpix Snip?
DWSIM Simulator is rated higher. DWSIM Simulator averages 4.6 out of 5 from 105 ratings, while Mathpix Snip averages 4.5 from 141 ratings.
Do DWSIM Simulator or Mathpix Snip have ads?
Neither DWSIM Simulator nor Mathpix Snip shows ads.
Which is updated more often, DWSIM Simulator or Mathpix Snip?
DWSIM Simulator ships an update every 6 weeks, and Mathpix Snip every 5 weeks. Most recently, DWSIM Simulator was updated on October 1, 2026 and Mathpix Snip on October 7, 2026.

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