Dan Nesthus 0
Sunday, November 9, 2025
App requires a $6.99 Subscription before you can even try it out. It may work, but I'm not willing to buy it when there are free apps and websites.
Jordan Crowe 0
Saturday, October 11, 2025
Subscription for a basic calculator??
Marshall Loewenstein 0
Tuesday, January 13, 2026
Unique capability that doesn't really exist anywhere to get a precise octane mixture. Tests spot on for Ethanol with my inline sensor. Obviously, can't test for the octane calculations as that takes a special lab and $$$. Edited
James M 0
Tuesday, February 17, 2026
Awesome app to quickly figure out e85 blend ratios with gasoline as well as octane with fuel blends.
Vincent Tyler 0
Wednesday, April 15, 2026
Devs don't tell you they want $7.00 a month for basic gas calculations.