Yes, both IntelliJ IDEA and Coder offer a Free Trial.
IntelliJ IDEA is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Coder is designed for Individuals, Medium Business and Small Business.
Pricing for IntelliJ IDEA Starts at $41/User/Month when Billed Yearly whereas for Coder Starts at $35/User/Month.
Some top alternatives to IntelliJ IDEA includes Codeanywhere, PaizaCloud, Eclipse Che, Visual Studio IDE, Koding, CodeTogether, Flutter, Codefile and Pseudocode Editor.
Some top alternatives to Coder includes IntelliJ IDEA, Codeanywhere, ShiftEdit, Eclipse Che, Visual Studio IDE, Koding, CodeinCloud, CodeTogether, Red Hat CodeReady Workspaces and CodeOnline.