Solarday
In-App PurchasesDuo-native
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Registry/ Apps /KeepDates
On the Duo: Duo-native. Version 26.15 (26 October) added two columns on iPhone Duo, its release notes say; its maker's site shows the at-a-glance overview in the Duo sidebar. Checked November 5, 2026.
App Store data as of October 27, 2026
Why it's here
Not for
Anyone whose contacts carry nothing beyond birthdays, which the iPhone already tracks.
About KeepDates
KeepDates scans your contacts for date fields, lets you pick which ones to keep, and syncs them into a dedicated calendar as yearly events, with an optional reminder the day before. It updates in the background as contacts change and keeps everything on the device. There are Home Screen and Lock Screen widgets and an Apple Watch app with complications. Premium adds multiple reminder timings, a handled checklist, more widget sizes, pinned contacts and finer control.
On the iPhone Duo it uses two columns: the list on the left, the opened date on the right, and opening a contact moves both columns along. Before you open anything, the left column shows an overview of your contacts, synced and hidden dates, and how they split by type.
