ECG calipers, with the measurement buttons wrapping into two rows when space is tight
Does EP Calipers work on iPhone Duo?
Yes, the developer says so: version 3.11.0, released October 17, 2026, is an "Update for iPhone Duo", and the code change behind it fits the four measurement buttons into one or two rows.
- App Store confirmedDavid Mann, the developer, in a change to the EP Calipers code on GitHub dated October 15, 2026: a toolbar fix for iOS 27 and the iPhone Duo, with the four measurement controls wrapping into one or two rows. The App Store release notes for version 3.11.0 (released October 17, 2026) say "Update for iPhone Duo".
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About EP Calipers
EP Calipers places movable calipers over ECG images. Version 3.11.0, released October 17, 2026, is an “Update for iPhone Duo”, the release notes say; they don’t describe the layout. It follows a change to the code from David Mann that keeps the calibration, interval/rate, mean-rate and QTc controls visible instead of moving them into an overflow menu: the buttons use one row when they fit and two when they don’t.
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 3.11.0 (released October 17, 2026) mention iPhone Duo: "Update for iPhone Duo Remove tooltips Fix toolbar menu layout issues on iOS 27"
App version: 3.11.0.
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 App Store release notes for version 3.11.0: "Update for iPhone Duo", alongside the iOS 27 toolbar menu fixes. The notes don't describe the layout.
App version: 3.11.0.
Text evidence only: no Duo screenshots or recording reviewed, and no build tested. Version 3.11.0 was released October 17, 2026.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the maker's Duo toolbar fix and the code around it. Four measurement controls wrap into two rows when their labels don't fit in one, with space reserved below the ECG.
App version: Not recorded in this evidence.
Code review only: no screenshots, build, simulator, physical-device or clinical test. The App Store lists version 3.10.0, from October 4, 2025, so the new layout isn't confirmed as released.
View reviewed evidence ↗
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Sources: The toolbar fix on GitHub (github.com) · EP Calipers code on GitHub (github.com) · EP Calipers on the App Store (apps.apple.com)