Comparison

Chemical Engineering Formulate vs Focus Matrix

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

Head to head
About

Chemical Engineering Formulate

This comprehensive reference tool provides over 1,500 formulas, calculators, and conversion charts for chemical engineering professionals and students. It covers a wide range of topics including heat transfer, fluid mechanics, and reaction kinetics, with support for both US and Metric units.

Highlights
  • 1,500+ formulas and calculators
  • 700+ engineering calculators
  • US/Metric unit toggle
  • Dual-unit display
  • Searchable reference tables
  • Offline functionality
  • Save and share calculations
Features
Read full description

CHEMICAL ENGINEER is the essential tool for Chemical Engineers, Process Engineers, and engineering students. With over 1,500 formulas and calculators, this is the most comprehensive chemical engineering reference app available. The app features 700+ engineering calculators across 50 categories, 750 conversion formulas, 8 temperature scales, and 14 reference tables. All formulas support US and Metric (SI) units with one-tap toggle and dual-unit display. CORE CHEMICAL ENGINEERING - Heat Transfer -- LMTD, overall heat transfer, fin efficiency, radiation, Fourier's law - Fluid Mechanics -- Reynolds number, Bernoulli, Darcy-Weisbach, Hagen-Poiseuille - Thermodynamics -- Ideal gas, Clausius-Clapeyron, Antoine equation, compressibility - Reaction Kinetics -- Arrhenius equation, rate laws, CSTR/PFR design, Levenspiel - Mass Transfer -- Fick's law, mass transfer coefficients, wetted wall columns - Distillation -- McCabe-Thiele, Fenske, Underwood, relative volatility - Dimensionless Numbers -- Reynolds, Nusselt, Prandtl, Schmidt, Sherwood, Grashof UNIT OPERATIONS Filtration, Packed/Fluidized Beds, Compressor Sizing, Mixing, Cooling Towers, Membrane Separation, Crystallization, Liquid-Liquid Extraction, Adsorption PROCESS & SAFETY Process Economics, Process Control, Safety Engineering, Corrosion and Electrochemistry ENVIRONMENTAL Air Quality, River/Lake/Soil Pollution, Infiltration and Recharge, Evaporation, Waste ADDITIONAL CATEGORIES Piping (70), Pressure Stress (109), Material Weight (101), Area Formulas (60), Flat Plates, Pumps, Pump Laws, Steam, Crusher, Vapor Separators, Equilibrium, Cogeneration, and more CONVERSIONS BTU, Cubic, Flows, Ft-Lbs, Horsepower, HVAC, Hydraulic, Linear, Liquid, Metric (460), Power, Pressures, Square Measures, Watts, Weights TEMPERATURE SCALES Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton, Delisle, Romer 14 REFERENCE TABLES Chemical Properties, Steam Tables, Pipe Schedules, Material Densities, pH Scale, Engineering Constants, Chemical Resistance, Water Quality, Critical Properties, Antoine Constants, Heat Transfer Coefficients, Dimensionless Numbers, Gas Properties, Flammability Limits FEATURES - US/Metric toggle with dual-unit display - Save calculations and favorites - Share and export results - Searchable reference tables - Dark mode interface - Works offline Don't see a formula you need? Email us and we'll include it in the next update.

About

Focus Matrix

Organize your tasks efficiently using a priority matrix based on urgency and importance. This app helps you focus on what truly matters by categorizing tasks and providing tools for scheduling, reminders, and detailed tracking. Sync across devices and export your lists for seamless productivity.

Highlights
  • Eisenhower Box priority matrix
  • Task categorization and sorting
  • Drag-and-drop task management
  • Due dates and reminders
  • Recurring tasks
  • Cross-device synchronization
  • Task export to PDF
Features
Read full description

Focus Matrix is a smart personal organizer based on the so-called Eisenhower box, a personal productivity strategy created by Dwight Eisenhower, the 34th President of the United States. The principle uses a special priority matrix that helps break your tasks into several groups depending on their urgency and importance, and work your way through your daily agenda in the most efficient way possible. This app will help you focus on what really matters, and get rid of the things that can be painlessly delegated to others or postponed indefinitely until you have time for them. Task Organization • Two views: Matrix and List of Sections • “Unsorted” section to hold incoming tasks until you categorize them • Move tasks between sections using drag-and-drop • Maximize sections to focus on specific content Task Scheduling and Reminders • Assign due dates to tasks • Set “All day task” for whole-day planning • Create recurring tasks with customizable repeat options • Set reminders to never miss an important deadline Advanced Task Features • Automatically move a task to 'Urgent' as its deadline approaches, with timely notifications • Automatically move a task to 'Urgent' when a linked task is completed • Track task creation and completion dates for detailed management • Paste multiline text as individual tasks to speed up input Sorting, Filtering, and Tags • Sort tasks by title, due date, or manually • Use tags to organize tasks effectively • Filter tasks by tags and statuses (completed/uncompleted) • Save and quickly apply custom filter presets for easy navigation Synchronization and Integration • Sync data across all your devices • Sync tasks with Calendar • Integrate with Be Focused*: Sync tasks between apps and start timer in Be Focused directly from Focus Matrix Exporting and Reporting • Export task lists to PDF or print them for offline use • Configurable statistics and reports for completed tasks Security and Privacy • Password and Face ID protection for secure task management Platform Compatibility • Fully available for Mac and iOS Pro Version Features • Cross-device synchronization • Synchronization of tasks with Calendar • Integration with Be Focused*: Sync tasks between apps and start timer in Be Focused directly from Focus Matrix Focus Matrix is free to download and use forever. However, if you want to access the Pro features on all your iPhones, iPads, and Macs, you can upgrade to the Pro version. The Pro subscription comes in three different options: Monthly, Yearly with a 7-day trial, and Lifetime (one-time payment). Payment will be charged to your App Store account and will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed and auto-renewal may be turned off in your App Store account settings. Privacy Policy: https://xwavesoft.com/privacy-policy.html Terms of Use: https://xwavesoft.com/terms-of-use.html * Be Focused helps you get things done by breaking up individual tasks among discrete intervals. It’s available for Mac and iOS devices in App Store. Integration with Be Focused requires the Pro version of Be Focused, sold separately.

Screenshots

Chemical Engineering Formulate4 screens
Focus Matrix4 screens

Verdict

The call

The clearest difference is review sentiment: Focus Matrix at 82% against Chemical Engineering Formulate's 0%. Focus Matrix also leads on price (Free vs $4.99) and iOS requirement (16.0 vs 18.6). Chemical Engineering Formulate's advantage is ads (none vs shown). On update cadence, in-app purchases and device support 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

Focus Matrix is free to download; Chemical Engineering Formulate costs $4.99 up front. Chemical Engineering Formulate sells 1 one-off in-app purchase and Focus Matrix sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Chemical Engineering Formulate ships an update every 8 months, Focus Matrix every 7 months. Both last shipped on October 23, 2026.

Scorecard5 real differences · 5 level
Chemical Engineering Formulate versus Focus Matrix: the parameters behind the verdict, then further details
ParameterChemical Engineering FormulateFocus Matrix
Price$4.99Free — better
Rating—4.6 (1.6K ratings) — better
Positive reviews0.0% of reviews82.2% of reviews — better
Number of ratings—1.6K — better
Update frequencyEvery 8 monthsEvery 7 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.0 — better
Further details — not scored
Size19 MB33 MB
Age rating4+4+
DeveloperHistorycentral.comDenys Ievenko

Customer experience

Chemical Engineering Formulate

Written reviews7 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Focus Matrix

All ratings1,586 ratings
Positive91.2%
Neutral3.8%
Negative4.9%
Written reviews781 reviews
Positive82.2%
Neutral7.3%
Negative10.5%

Bugs and requests

Chemical Engineering Formulate

Not enough reviews yet to summarise bugs or requests.

Focus Matrix

Reported bugs

4 issues
  • Sync issues causing data loss
  • Frequent crashes
  • Inability to log in across devices
  • Calendar integration not working as expected

Requested features

7 requests
  • Ability to have multiple matrices (e.g. work, personal)
  • Recurring tasks
  • More export options (e.g. CSV)
  • Dark mode
  • Better sync reliability across devices
Show 2 more
  • Subtasks or nested tasks
  • Ability to archive completed tasks

In-app purchases

1 purchases

Chemical Engineering Formulate

One-time1
  • Chemistry Pro$3.99
3 purchases

Focus Matrix

Subscriptions2
  • Monthly Pro$2.991 Month
  • Yearly Pro7 Days trial$17.991 Year
One-time1
  • Lifetime Pro$34.99

Questions

Is Chemical Engineering Formulate free?
Chemical Engineering Formulate costs $4.99, and also offers in-app purchases.
Is Focus Matrix free?
Focus Matrix is free to download, with in-app purchases available.
Do Chemical Engineering Formulate or Focus Matrix have ads?
Focus Matrix shows ads; Chemical Engineering Formulate does not.
Which is updated more often, Chemical Engineering Formulate or Focus Matrix?
Chemical Engineering Formulate ships an update every 8 months, and Focus Matrix every 7 months. Most recently, Chemical Engineering Formulate was updated on October 23, 2026 and Focus Matrix on October 23, 2026.

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