Comparison

Chemical Engineering AppSuite HD vs Lucidchart

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

Head to head
About

Chemical Engineering AppSuite HD

This comprehensive app suite offers a vast array of tools for chemical engineers, chemists, and students. It includes unit converters, physical property calculations, thermodynamic equations, and specialized calculators for fluid dynamics and more. Access a chemical database, periodic table, and graphing tools.

Highlights
  • Steam table calculations
  • Chemical database (1000+ compounds)
  • Extensive unit converters
  • Physical property calculations
  • Fluid dynamics & process control tools
  • Thermodynamic equations of state
  • Vapor-liquid equilibrium prediction
Features
Read full description

There are many unit conversion apps and there are many calculator apps... There are even chemistry apps and engineering apps... but there is only one Chemical Engineering AppSuite!!! Chemical Engineering AppSuite for iPad and iPhone has been developed by a team of chemical engineers for both professionals and students. This one-of-a-kind app features many equations and data used by chemical engineers, chemists and other engineers and integrates them with unprecedented functionality! And yes, we have also unit converters and graphing calculators. The app is also great for any high school or college student in science and math courses. Professionals will also find it very useful! Anyone with an interest in science, chemistry, math or engineering can find ways to use Chemical Engineering AppSuite HD! Highlights of the app include: Full steam table calculations based on IAPWS95 model. Database with 1000+ common industrial and laboratory chemicals Unit converters for temperature, pressure, length, area, time, and many, many more. Select your favorites for quick access! Physical property calculations for more than 1000 compounds and elements including densities, vapor pressures, heat capacities, viscosities. "ChemE Tools" for rapidly solving problems in fluid dynamics, process controls, mass/mole calculations and combustion reactions! Periodic table of the elements with a high-resolution, zoomable view Thermodynamic Equations of State: Rapidly solve for any variable in ideal gas, Peng-Robinson, van der Waals, SRK, and others. Calculation of compressibility factors and graphing of individual compressibility charts via the Lee-Kesler model Binary vapor-liquid equilibrium prediction with graphing via Raoult's Law (ideal) or Wilson Model (real). Over 675 pairs possible in the Wilson Model. Spreadsheet, statistics, and graphing tools with a built in graphing calculator! (iPad only). The iPhone version includes a very useful calculator as well! Matrix tools and linear equation solvers. Randomized practice problems for mass balances. Get data from the app and share via PDF, photos and Twitter. Follow us on Twitter and send us your feedback and suggestions for new content: @Vector254 Check out our other apps: Engineering Unit Converter and ODEsseus - Numerical Solver for Differential Equations.

About

Lucidchart

Create and view flowcharts, mind maps, and org charts on your mobile device. This visual workspace facilitates real-time collaboration and data visualization for teams. Requires a Team or Enterprise subscription.

Highlights
  • Create and edit diagrams
  • Pre-built templates
  • Drag-and-drop functionality
  • Offline viewing of recent documents
  • Real-time collaboration
  • Export to PDF, PNG, Visio
  • Integrates with G Suite, Slack, Jira
Features
Read full description

This app requires a Team or Enterprise Lucidchart subscription. If you have a free or Individual level subscription please use the desktop or mobile web browser version. Lucidchart is the easiest way to create and view venn diagrams, flowcharts, mind maps, concept maps, org charts, UML activity diagrams on your mobile device. Lucidchart is a visual workspace that combines diagramming, data visualization, and collaboration to accelerate understanding and drive innovation. With this intuitive, cloud-based solution, everyone can work visually and collaborate in real-time. The app requires a Lucidchart account. Diagrams save and sync instantly online to your Lucidchart account, so you never lose your work Already a Lucidchart user? Just sign in and your documents will load automatically. Intuitive features: * Create new documents and edit your existing documents * Start with pre-built templates * Drag-and-drop functionality * View recent documents in offline mode * Real-time collaboration * In-editor commenting Easy to share and publish: * Export to PDF, PNG, and Microsoft Visio * Email documents to share with others * Generate shareable links Global compatibility: * Integrates with G Suite, Google Drive, Slack, Confluence, Jira, and more * Import Visio and OmniGraffle files * Runs on all major browsers and device operating systems Shape libraries for every scenario: * Flowcharts and process maps * AWS, Azure, and GCP shapes * Mockups and wireframes * UML, ER, and network diagrams * Mind maps and Venn diagrams * Org charts and BPMN diagrams Terms of Service https:/lucid.co/tos-mobile Privacy Policy https://lucid.co/privacy-mobile CONTACT US: You can always reach us at support@lucidchart.co with feedback or questions (you can tap "Get Support" or "Send Feedback" in the app). Thanks for considering Lucidchart! Lucidchart is utilized in over 180 countries by more than 20 million users, including business leaders looking to improve process flows, technical professionals mapping out network infrastructures, and people managers need to create org charts. Ninety-nine percent of the Fortune 500 use Lucidchart, and customers include Google, GE, NBC Universal, and Johnson & Johnson. Since the Utah-based company's founding in 2010, it has received numerous awards for its product, business, and workplace culture.

Screenshots

Chemical Engineering AppSuite HD4 screens
Lucidchart4 screens

Verdict

The call

Chemical Engineering AppSuite HD and Lucidchart both sit at 4.6 stars, but that hides the real split: 86% of Chemical Engineering AppSuite HD's written reviews are positive against 21% of Lucidchart's. Chemical Engineering AppSuite HD also leads on chart position (#185 vs unranked) and iOS requirement (7.1 vs 16.0). Lucidchart's advantage is price (Free vs $0.99) and ratings volume (5.3K vs 81). On rating, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Lucidchart is free to download; Chemical Engineering AppSuite HD costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Chemical Engineering AppSuite HD against 4.6 for Lucidchart. That said, the two scores are not equally well evidenced: Lucidchart has 5.3K ratings behind it against 81, so its average is the more settled of the two. Written reviews are what separate them: 86% of Chemical Engineering AppSuite HD's written reviews are positive against 21% of Lucidchart's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 10, 2026 respectively.

Scorecard6 real differences · 5 level
Chemical Engineering AppSuite HD versus Lucidchart: the parameters behind the verdict, then further details
ParameterChemical Engineering AppSuite HDLucidchart
Price$0.99Free — better
Rating4.6 (81 ratings)4.6 (5.3K ratings) — better
Positive reviews86.1% of reviews — better21.1% of reviews
Number of ratings815.3K — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
Best chart rank#185 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.1 — better16.0
Further details — not scored
Size46 MB7 MB
Age rating4+4+
DeveloperVector 254 LLCLucid Software

Customer experience

Chemical Engineering AppSuite HD

All ratings80 ratings
Positive88.8%
Neutral3.8%
Negative7.5%
Written reviews79 reviews
Positive86.1%
Neutral2.5%
Negative11.4%

Lucidchart

All ratings5,325 ratings
Positive90.4%
Neutral2.4%
Negative7.2%
Written reviews620 reviews
Positive21.1%
Neutral10.2%
Negative68.7%

User reviews

Chemical Engineering AppSuite HD

From 81 App Store ratings

What we love

  • 👍 Very useful for chemical engineering
  • 💡 Extensive compound database
  • 💡 Comprehensive unit converter
  • 👍 Great for quick calculations
  • 👍 Handy for students and professionals

Room to improve

  • 🐛 App crashes frequently
  • 🐛 Converter issues
  • 🐛 Incompatible with newer iOS versions
  • 🐛 Some unit conversions are incorrect
  • 🐛 Lacks some common compounds

Lucidchart

From 5.3K App Store ratings

What we love

  • 🚀 Intuitive interface
  • 👍 Great for creating diagrams and flowcharts
  • 💡 Useful templates and shapes

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🔒 Locked features behind paywall
  • 👎 Poor mobile experience compared to web version
  • 🚫 Not available for individual users, only teams/enterprises

Bugs and requests

Chemical Engineering AppSuite HD

Reported bugs

11 issues
  • App shuts down when using converter
  • Conversion tables not working with new iOS versions
  • Unit converter not working
  • App crashes with iOS 11
  • App crashes on iOS 7.x
Show 6 more
  • Converter doesn't convert gallons to barrels correctly
  • 1 gallon not equal to 8 pints
  • Barrel of oil conversion factor is incorrect
  • Time converter converting hours to days incorrectly
  • Area units converter needs fixing
  • Graphical bugs when changing tools/graphs

Requested features

20 requests
  • Add Internal Energy
  • Save imperial units as default
  • Add more ranges for Antoine constants
  • Functions for choosing equations of state
  • Add conical frustum volume calculator
Show 15 more
  • Add liquid level calculator
  • Add concentration section to conversions
  • Add more steam tables for common compounds (ammonia, R-134a)
  • Include unit operators and their functions
  • Include examples of industrial processes
  • Include PFD and P&ID information
  • Include quizzes and answers
  • Add a built-in scientific calculator
  • Fix area units converter
  • Fix time converter
  • Reference for calculations
  • Add butane and other common compounds
  • Consistent use of preferred units
  • Obtain temperature from entropy and pressure data for cycle problems
  • Add Raul's Law

Lucidchart

Reported bugs

3 issues
  • Inability to save or access documents
  • Unresponsive controls and UI elements
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Offline mode
  • Better Apple Pencil support
  • Ability to export to more formats
  • Improved text editing functionality

In-app purchases

None

Chemical Engineering AppSuite HD

No in-app purchases

None

Lucidchart

No in-app purchases

Questions

Is Chemical Engineering AppSuite HD free?
Chemical Engineering AppSuite HD costs $0.99, with no in-app purchases.
Is Lucidchart free?
Lucidchart is free to download, with no in-app purchases.
Which has better reviews, Chemical Engineering AppSuite HD or Lucidchart?
Lucidchart is rated higher. Chemical Engineering AppSuite HD averages 4.6 out of 5 from 81 ratings, while Lucidchart averages 4.6 from 5.3K ratings.
Do Chemical Engineering AppSuite HD or Lucidchart have ads?
Neither Chemical Engineering AppSuite HD nor Lucidchart shows ads.
Which is updated more often, Chemical Engineering AppSuite HD or Lucidchart?
Chemical Engineering AppSuite HD ships an update every 2 months, and Lucidchart every 2 months. Most recently, Chemical Engineering AppSuite HD was updated on November 1, 2026 and Lucidchart on November 10, 2026.

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