Your Foursquare check-in history as stats and journals, updated for the Duo
Does CheckSync - Check-in Stats work on iPhone Duo?
Yes. CheckSync - Check-in Stats's App Store page says it supports iPhone Duo, so the update is out. FoldHunt's editor hasn't seen it running yet.
- App Store confirmedThe developer, in the release notes for version 1.2 (released October 10, 2026), which start with "iPhone Duo Support". There are no pictures of the app on the Duo, and the notes don't describe the layout. The App Store seller is Jake Burns (Cube Quack).
Adapted for the fold
We're waiting on details of exactly what CheckSync - Check-in Stats changes for the fold. Are you the developer? Tell us.
About CheckSync - Check-in Stats
CheckSync connects to your Swarm account and turns years of Foursquare check-ins into stats and reminders: places from the same date in past years, places you used to visit and stopped going to. Version 1.2 adds iPhone Duo support, plus Siri Shortcuts, Spotlight and Visual Intelligence. The notes don’t say what the app does closed or open, and there are no pictures of it on the Duo yet.
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 1.2 (released October 10, 2026) mention iPhone Duo: "iPhone Duo Support - App intents support (Siri Shortcuts, Spotlight Search, Visual Intelligence) - Bug fixes"
App version: 1.2.
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 ↗
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Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
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