Yes, Disneyland has a FastPass (which is free) and a MaxPass which is $10 per person per day.
You can only get 1 fast pass at a time and you have to wait until you have reached the designated time of the first pass before you can get the next fast pass
Website, app
Use the app it's better fastpass is free Every two hours
We used the app
Yes.
as said above, disneyland has fastpasses that are free
Yes, they have fast pass.
You can get it on a app but when you get there thats when you can use it
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