Hi Gottago, and welcome to the forum.
We don’t comment publicly on future plans, so we have no timeframes to announce on Scapple for iOS at this time.
We are currently beta testing an update to Scapple for macOS.
As Ioa’s beta announcement states:
My recommendation is to set a watch on the forum’s Announcements page so you’ll see when new beta tests are available.
You can sign up for our low-volume newsletter as well for additional updates.