Many inexpensive mini pumps now have built-in gauges that are accurate enough for most people.
Here are two that I have now. I like the foot hold on the Schwinn. It and the gauge swivel to make an "L" when you use it, and to make an "inline tube" for carrying in the frame.





Many mini pumps now come ready for both presta and schrader. Mine do not. But you can get presta to schrader valve adapters for a coupla bucks each, if not free from an Local Bike Shop. I use them as valve covers on my presta valves.


As ​​​wolfchild said, you are fine without a guage in most cases. I am just sharing what I do.

By the way, Most frame pumps do not match the ease and ergonomics of a standard floor pump. I mostly commute and keep a cheap floor pump (with gauge) in the shed with the bikes, and in the warehouse at the office where I am allowed to keep my bike during the day.