Yes, both DrLambda and The Visualizer offer a Free Trial.
Pricing for DrLambda Starts at $10.62/month whereas for The Visualizer Starts at $31.17/month.
The Visualizer offers several advantages, including Accelerates learning, Visualizes complex concepts, Visualizes scientific research, Visualizes project structures, Supports creative problem-solving and many more functionalities.
The cons of The Visualizer may include a No offline mode, Limited file format support, No mobile app, No multi-language support. and No collaborative features
