Best ROL Assistant alternatives: apps like ROL Assistant

9+ similar apps compared and reviewed

4.7 avg rating
8 free apps
Updated October 2026
ROL Assistant
ROL Assistant
Astron International, Inc.

ROL Assistant is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to ROL Assistant

Haverly's PetroCalc#2

Haverly's PetroCalc by Haverly Systems, Inc.

Oil & Gas Property Tools
Strong Contender
🔧 Utilities
4.7(3 ratings)
Free
Haverly's PetroCalc screenshot 1
Haverly's PetroCalc screenshot 2
Haverly's PetroCalc screenshot 3
Haverly's PetroCalc screenshot 4
Haverly's PetroCalc screenshot 5
Haverly's PetroCalc screenshot 6

This application provides engineers, technicians, and students with a comprehensive set of tools for petroleum property calculations. It offers features for unit conversion, crude oil blending, viscosity prediction, and distillation curve analysis, all accessible offline.