Mac + iPhone
The Mac does the reading.
Pingworthy is being built as a native Mac app with an iPhone companion for reviewing follow-ups away from your desk.
On your Mac
The app uses Apple’s on-device model for message analysis. Your conversations don’t need to go to a cloud AI service to find a follow-up. Supported systems, sources, and permissions will be listed with the release.
On your iPhone
The companion is for reviewing follow-ups while you’re out. It isn’t an independent way to read every app’s message history on an iPhone.
Between the two
Sync has its own data and connection requirements. Release documentation will explain what travels between devices and what works when your Mac is unavailable. Local analysis doesn’t answer those questions by itself.
The apps are in development. Public availability and supported system versions haven’t been announced.