Make text bigger with one tap

This is a simple app that increases font size with just one tap.

It's useful when you want to quickly show your screen to someone,
when you want to make it easier to see in a shaking car,
or if you have very poor eyesight.

Once installed, simply add the included widget to your home screen.
This will act as a one-touch button.
Each time you press it, the font size will switch between 100% and 200%.