TAG · 1 REVIEW
Engineering
Every App Comrade review tagged Engineering, across every platform.
Amazon
7.0 ChemMathsDroid is a working engineer's pocket reference, not a polished one.
A free chemical and process-engineering calculator from a tiny developer that bundles dozens of single-purpose tools into one app — useful, dense, and visibly built by someone who has actually solved the problems it solves.
MAY 10, 2026