Paywall sheet size on SwiftUI native macOS app doesn't adjust to content size

[roman-sundurov]

Describe the bug

When adding the Revenue Cat Paywall to a SwiftUI native macOS app, the sheet doesn't adjust to the paywall's size. It looks like this:

.sheet(isPresented: $showPaywall) {
    PaywallView()
}

Currently, the only way to solve this problem is to manually add a frame size, but it is impossible to accurately match the content size, and when the content changes, empty space or scroll bars will appear.

Platform

macOS

SDK version

5.48.0

SDK integration method

Swift Package Manager

StoreKit version

StoreKit 2 (default on versions >=5.0.0)

OS version

macOS 26.1

Xcode version

26.1.1

Device and/or simulator

Device

Environment

Sandbox

How widespread is the issue

100%

Debug logs

DEBUG: ℹ️ PostFeatureEventsOperation: Started
DEBUG: ℹ️ There are no requests currently running, starting request POST /v1/events
DEBUG: ℹ️ API request started: POST '/v1/events'
DEBUG: ℹ️ API request completed: POST '/v1/events' (200)
DEBUG: ℹ️ PostFeatureEventsOperation: Finished
DEBUG: ℹ️ Events flush succeeded
DEBUG: ℹ️ Serial request done: POST /v1/events, 0 requests left in the queue
DEBUG: ℹ️ applicationWillEnterForeground
WARN: Could not find default package for paywall. Using first package instead. This package will not show in the paywall. This could be caused by a package that doesn't have a product on this platform or the product might not be available for this region.

Steps to reproduce

1. Add RevenueCat Paywall
   .sheet(isPresented: $showPaywall) {
   PaywallView()
   }
2. Show Paywall using $showPaywall

Other information

Additional context

[RCGitBot]

👀 We've just linked this issue to our internal tracker and notified the team. Thank you for reporting, we're checking this out!

[JZDesign]

Hi @roman-sundurov, thanks for reporting this!

We have ticketed the work and will look into this soon.

[JZDesign]

This is interesting. It appears that SwiftUI in macOS does not work in quite the same way as iOS in terms of respecting State changes. I'm still looking into how to resolve this, but I have this code for you if you want to have the paywall automatically resize to fit in the window:

@State var size = CGSize.zero
@State var displayPaywall: Bool = false


MyView()
    .onTapGesture { displayPaywall.toggle() }
    .background {
        ZStack {
            GeometryReader { geometry in
                Color.clear
                    .frame(maxWidth: .infinity, maxHeight: .infinity)
                    .task {
                        size = .init(width: geometry.size.width, height: geometry.size.height * 0.8)
                    }
                    .onChange(of: geometry.size) { newSize in
                        size = CGSize(width: newSize.width, height: newSize.height * 0.8)
                    }
            }
            // This is really the trick, get the geometry reader to resize so it updates twice
            .frame(maxWidth: size == .zero ? .infinity : nil)
        }
    }
    .sheet(isPresented: self.$displayPaywall) {
        PaywallView()
            .frame(minHeight: size.height)
    }