Clickfunnels is software that will help you build and develop the best funnel. It has a lot of functions and can work independently without the need for a 3rd party
Where I share my experiences and reviews of apps, software, and training programs to help you improve your funnel skills. It will be very helpful to you before you make your decision.
Here are the training programs and books that I think will help you a lot. You will learn a lot of interesting things from this resource.