I tried to snap red face to blue face without addon but failed. Is there any way for me?
You can do it using an empty:
Create an 'arrows' empty (arrows will show objects orientation)
Set snapping option to face, this way:
- Snap the empty to the red surface:
Parent the cylinder to the empty (select the cylinder then select the empty and use CtrlP
Move the empty to the blue surface:
Orientation of the cylinder is inverted, so rotate the empty using local coordinates around Y with 180°: RY180
Select the cylinder
Clear parent using AltP and choose "clear and keep transformation"