The best alternatives to Solver are NumWorks, iMathematics, and Quick Math. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Solver?
AssemblyAI— Multilingual Speech-to-Text API with superhuman accuracy
NumWorks designed an intuitive and evolutive graphing calculator to make learning math easier.
You'd like to discover the NumWorks calculator? You don't have your NumWorks calculator handy? Download the free NumWorks app to use your calculator directly on your phone or tablet!
Mathfox is a simple app that lets you solve maths problems with ease. No need of symbols anything, Just plain text! It has many trignometry functions, logarithm functions and 150+ more that can do anythign you want! Mathfox ⚡