Early access
Automated iPhone Duo compatibility testing
Updated · Markdown version
FoldCheck is an automated compatibility tester for iPhone Duo: upload a simulator build, it drives the app through all 6 poses (closed, open and half folded, each in portrait and landscape) plus side-by-side multitasking, reports clipped, stretched and colliding layouts per view, and suggests the code change.
How FoldCheck works
- 1
Upload a build
Point FoldCheck at a simulator build or a TestFlight archive.
- 2
Every pose, every screen
It drives the app through all 6 poses (closed, open and half folded, each in portrait and landscape), plus side-by-side multitasking and both size classes.
- 3
Issues, not screenshots
Clipped text, hardcoded widths, overlapping system UI and missing size-class handling are flagged with the offending view.
- 4
Fixes you can merge
Each finding comes with a suggested SwiftUI or UIKit change and a before/after screenshot.
What FoldCheck detects
- Clipped or truncated content
- Hardcoded frame widths and heights
- UIScreen.main.bounds usage
- Missing regular-width layouts
- Custom bars colliding with system UI
- Content straddling the fold crease
- State loss on outer-to-inner handoff
- Broken multi-window resizing
Upload a build
Self-serve upload is on the way. Until it ships, the button opens an email: tell us your app name, stack and how many screens you need tested, and we run your build through FoldCheck by hand. Free for the first apps on the list.