DWSIM Simulator vs Anoc Octave Editor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Anoc Octave Editor
Create and manage Octave projects on your iOS device. Generate results and plots using an online editor. Offers local and cloud modes with features like syntax highlighting and Git integration.
- Octave project creation and management
- Online result and plot generation
- Local and Cloud modes
- Dropbox and Box synchronization
- Git integration
- Syntax highlighting and line numbers
- Assistive keyboard and hotkeys
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Anoc is an Octave Editor for your iOS device. It allows you to create and manage Octave projects directly on your iOS device and generate the result and plots by using Verbosus (Online Octave Editor). This software is provided "as is" without warranties or conditions of any kind, either expressed or implied. Features: * 2 Modes: Local Mode (stores .m documents on your device) and Cloud Mode (synchronizes your projects with Verbosus) * Use a dedicated server to perform calculations and generate plots * Automatic Dropbox synchronization (Local Mode) * Automatic Box synchronization (Local Mode) * Git integration (Local Mode) * AI assistant (ChatGPT and Claude, available in supported regions) * Custom keyboard shortcuts * Encrypted transmission to the server by using HTTPS * Syntax highlighting (operators, plot functions, comments) * Line numbers * Assistive keyboard * Hotkeys (see below) * Web-Interface (Cloud Mode) * Two factor authentication (Cloud Mode, in combination with Copiosus) * No ads Additional features in Anoc Pro: * Unlimited number of projects (Local Mode) * Unlimited number of documents per project (Local Mode) * Unlimited number of file uploads per project (Local Mode) * Unlimited number of projects (Cloud Mode) * Unlimited number of documents per project (Cloud Mode) Hotkeys in editor (can be changed in editor - settings - keyboard shortcuts): ctrl+,: Settings ctrl+s: Save ctrl+g: Generate result ctrl+f: Search ctrl+p: Preview ctrl+n: New document ctrl+d: Delete document ctrl+.: Next document Function files: Create a new file e.g. worker.m and fill it with function s = worker(x) % worker(x) Calculates sine(x) in degrees s = sin(x*pi/180); In your main .m file you can call it with worker(2) Load a file into a variable with the load command (Local Mode): data = load('name-of-file.txt'); Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is monetization model: DWSIM Simulator at free against Anoc Octave Editor's free with in-app purchases. DWSIM Simulator also leads on iOS requirement (12.0 vs 18.6). Anoc Octave Editor's advantage is review sentiment (82% vs 57%). 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
Both are free to download. DWSIM Simulator sells 10 one-off in-app purchases and Anoc Octave Editor sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for DWSIM Simulator against 4.6 for Anoc Octave Editor. Both are backed by a comparable volume of ratings — 105 and 37 respectively. Written reviews are what separate them: 57% of DWSIM Simulator's written reviews are positive against 82% of Anoc Octave Editor's.
DWSIM Simulator ships an update every 6 weeks, Anoc Octave Editor every 3 weeks. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.
| Parameter | DWSIM Simulator | Anoc Octave Editor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (105 ratings) | 4.6 (37 ratings) |
| Positive reviews | 57.1% of reviews | 81.8% of reviews — better |
| Number of ratings | 105 — better | 37 |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 106 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Medeiros | Verbosus.com |
Customer experience
DWSIM Simulator
Anoc Octave Editor
In-app purchases
DWSIM Simulator
- User-Defined Unit Set$1.99
- Flowsheet Utilities Pack$2.99
- Unit Operations Pack 1$2.99
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- 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
Anoc Octave Editor
- Upgrade: Subscription$3.991 Month
- Upgrade: Forever$8.99
Questions
Is DWSIM Simulator free?
Is Anoc Octave Editor free?
Which has better reviews, DWSIM Simulator or Anoc Octave Editor?
Do DWSIM Simulator or Anoc Octave Editor have ads?
Which is updated more often, DWSIM Simulator or Anoc Octave Editor?
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