Comparison

ROL Assistant vs Thermo Dynamics Calc

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

Head to head
About

ROL Assistant

This utility app provides a virtual advisor for refining questions and offers extensive unit conversion tools. It also calculates steam properties and line pressure drops for various pipe materials and sizes.

Highlights
  • Virtual refining advisor
  • Extensive unit conversions
  • Steam properties calculator
  • Line pressure drop calculation
  • English and Metric units
Features
Read full description

ROL Sia: Sia virtual advisor on Refining Online®. Ask Sia your refining question for answers from the Refining Online Q&A. Unit Conversion: Length, Area, Volume, Mass, Density, Pressure, Energy, Power, Temperature, Flowrate, Viscosity, Specific Energy, Heat Flux, Heat Transfer Coefficient, Thermal Conductivity... Steam Properties: Enthalpy, Density, Heat Capacity, Viscosity, Thermal Conductivity of saturated steam, water, and superheated steam. Line Pressure Drop: Single phase line pressure drop calculation for different pipe sizes and materials in English or Metric units.

About

Thermo Dynamics Calc

Features
Read full description

Thermo Dynamics Calc is a powerful and easy-to-use calculator designed for thermodynamic analysis. Whether you're a student, engineer, or professional, this app helps you perform accurate calculations for heat, energy, and gas law equations. Simplify complex formulas and get instant results for your academic or industrial needs. Ideal for mechanical, chemical, and thermal engineering applications. Key Features: • Heat, energy, and work calculations • Gas law equations and pressure-volume relations • Supports multiple units and conversions • Fast, accurate, and intuitive interface • Suitable for engineering students and professionals • Useful for real-world and academic problem solving Boost your efficiency and accuracy with Thermo Dynamics Calc—your go-to thermodynamics calculator. in-app purchase included 
 Lifetime to Remove Ads Privacy Policy :  https://docs.google.com/document/d/1A79qPsEUJu1rXjqsSUct_IBBAewiuBK5b8Dz-SPD0CY/edit?usp=sharing Terms & Condition :  https://docs.google.com/document/d/1_yiolHxlRnOnEZk_sgPThQ0hggtlZAKCM6NvqDOE8Gs/edit?usp=sharing

Screenshots

ROL Assistant4 screens
Thermo Dynamics Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: ROL Assistant at none against Thermo Dynamics Calc's 1. ROL Assistant also leads on iOS requirement (11.4 vs 13.0). On price, ads 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

Both are free to download. Thermo Dynamics Calc sells 1 one-off in-app purchase. ROL Assistant asks for nothing beyond the download.

Scorecard2 real differences · 7 level
ROL Assistant versus Thermo Dynamics Calc: the parameters behind the verdict, then further details
ParameterROL AssistantThermo Dynamics Calc
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.4 — better13.0
Further details — not scored
Size28 MB41 MB
Age rating4+4+
DeveloperAstron International, Inc.Shraddhaben Parmar

In-app purchases

None

ROL Assistant

No in-app purchases

1 purchases

Thermo Dynamics Calc

One-time1
  • Lifetime premium$12.99

Questions

Is ROL Assistant free?
ROL Assistant is free to download, with no in-app purchases.
Is Thermo Dynamics Calc free?
Thermo Dynamics Calc is free to download, with in-app purchases available.
Do ROL Assistant or Thermo Dynamics Calc have ads?
Neither ROL Assistant nor Thermo Dynamics Calc shows ads.

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