A baseball and softball lineup planner, with the roster beside the field on the Duo
Does Stack the Lineup work on iPhone Duo?
Yes, the developer says so: version 3.5 (released October 16, 2026) says it supports iPhone Duo. The developer's in-app release notes add that the roster sits beside the field and lineup tools.
- App Store confirmedThe developer's in-app release notes for version 3.5, added to the app's code on October 14, 2026, say that on the Duo the roster sits beside the field and lineup tools. The App Store release notes for version 3.5 (released October 16, 2026) say "Support for iPhone Duo."
Adapted for the fold
We're waiting on details of exactly what Stack the Lineup changes for the fold. Are you the developer? Tell us.
About Stack the Lineup
Stack the Lineup helps baseball and softball coaches set batting orders and fielding positions. Version 3.5, released October 16, 2026, puts the roster on one side of the Duo and the field and lineup tools on the other, the developer’s release notes say. The App Store release notes for 3.5 say only that it supports iPhone Duo.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 3.5 (released October 16, 2026) mention iPhone Duo: "Adding Hitting Archetypes for batters Support for iPhone Duo"
App version: 3.5.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the developer's in-app release notes for version 3.5, which describe the roster beside the field and lineup tools on the Duo. At the time, the App Store listed version 3.4.
App version: 3.5 (unreleased source copy).
Release notes in the source code only. No Duo screenshots were reviewed, no build was tested and no public 3.5 release was confirmed.
View reviewed evidence ↗
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Sources: Stack the Lineup 3.5 Duo release notes (github.com) · Stack the Lineup on the App Store (apps.apple.com) · Stack the Lineup website (stackthelineup.com)
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