Great and uniquely prepared!!
I hope it expands with additional calculations related to the mechanical and automotive wold.

This utility app consolidates numerous automotive calculators into a single platform. It offers tools for calculating RPM, speed, differential gear ratios, engine compression, displacement, tire size, and pulley ratios, with more features planned.
1.2
October 15, 2018
Version 1.2: -Added Privacy Policy - Fixed some bugs
MoreAutoCal offers a suite of calculators including RPM & Speed, Differential Gear, Engine Compression, Displacement, Tire Size, Pulley Calculator, and Unit Conversion. More calculators are planned for future updates.
Yes, AutoCal is available for free. There are no costs associated with downloading or using its core features.
AutoCal is designed for mobile devices and is rated for ages 4 and up. Specific operating system requirements are not detailed but it is available on mobile platforms.
The app was last updated on October 15, 2018, with version 1.2. The initial release date was September 24, 2018. Future updates are planned to add more calculators.
Based on the available data, AutoCal has a perfect rating of 5.0 stars from 3 ratings, indicating very positive user sentiment among its current users.
The provided data does not specify whether AutoCal contains advertisements. However, it is listed as free with no in-app purchases.
The description does not explicitly state offline functionality. However, as a calculator app, it is likely designed to perform calculations without a constant internet connection.