ROL Assistant is a free mobile application with useful calculation tools for the refining engineer and displays market prices from the site. The main features of this software are summarized below:

ROL Mkt.:
Displays market prices from the site.

Conversion calculations for Length, Area, Volume, Mass, Density, Pressure, Energy, Power, Temperature, Flow Rate, Viscosity, Specific Energy, Heat Flux, Heat Transfer Coefficient, Thermal Conductivity...

Enthalpy, Density, Heat Capacity, Viscosity, Thermal Conductivity of saturated steam, water, and superheated steam properties.

Press. Drop:
Single phase line pressure drop calculation for different pipe sizes and materials in English or Metric units.

What’s New

Version 1.0.11

- General Improvements.

App Privacy

The developer, Astron International, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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