Ans :- The major difference between both the plugins is that :
In Woocommerce Sale Funnel Pro, we can create custom template of funnel using Forge Builder plugin while in Woocommerce One Click Upsell Funnel Pro, we cannot design the template of the funnel.
In Woocommerce Sale Funnel Pro, we can create multiple funnel steps which can be interchanged while in Woocommerce One Click Upsell Funnel Pro, it comprise of single steps which cannot be interchanged.
In Woocommerce Sale Funnel Pro, there is no upsell report feature while in Woocommerce One Click Upsell Funnel Pro, it generates a Upsell Sale Funnel’s sale report.
In Woocommerce Sale Funnel Pro, we cannot set the funnel for a particular day or period while in Woocommerce One Click Upsell Pro, we can set it for a particular week day.