Is Dressmaker on Switch or mobile?
Not yet. Both are planned.
Today Dressmaker is only on Steam, for Windows and Mac. The studio has said Switch and mobile versions are planned, with no date.

The studio’s words
“We’re also planning mobile and Switch ports, which have been requested constantly on our various social media channels.”
From the studio's launch post, Dressmaker - Out Now!
“That's the plan! But we made Dressmaker with 3 full-time devs, and are using the money we make from Steam to arrange for a skilled porting team to do the port. So it'll take some time, but it'll happen eventually!”
A developer, asked about Switch 1 and 2, in a developer's answers on r/CozyGamers
What that does and does not tell you
- The ports are planned and will be made by a porting team the studio arranges.
- They are paid for by Steam sales, and the studio has since written that it has recouped its costs.
- No date, no price and no store has been given for either.
- The developer was asked about Switch 1 and 2 together and did not pick one.
The studio has not given a release window, so a date for either seen elsewhere is a guess. The launch post’s other plans, controller support among them, are on patch notes.
Playing it now without a PC
The Mac version lists an Apple M1 as its minimum. A Steam Deck runs it too, though a developer does not recommend it until controller support lands: see platforms and Steam Deck. PlayStation and Xbox are not among the ports the launch post names.