iSpoofer still works. Joystick and teleport, back in your thumb.

Pick iPhone or Android, install the modded Pokémon GO, and move your trainer from anywhere you are lying down.

Radar sits in the same app, so you see what appeared before you jump.

A bit later. Reading before installing anything. Good idea.

What we know, what we don't know

The build behind the button brings joystick movement, teleport and radar in one modded app. That covers the basics.
iSpoofer is a third-party app players use to move their location in Pokémon GO.
There is an iPhone build and an Android build. You choose yours first. Pick the right one.

How long a build keeps working after the next Pokémon GO update. It varies.
Whether your account gets flagged. Spoofing breaks Niantic's rules, so that risk stays with you. It can happen.

Fair. I'll keep my main account out of it. Makes sense.

Before the first jump.

Go

Match the build to your phone: the iPhone one on iOS, the Android one on Android. Use the right version.
Careful

After a long jump, let some time pass before you catch or spin. Wait a little.
Stop

Don't spoof on an account you would hate to lose. Simple as that.

The couch stays put. The trainer moves.