Solarday
In-App PurchasesDuo-native
Intention and to-do list side by side
Registry/ Apps /Calendars
On the Duo: Duo-native. Version 5.41 (23 October) added iPhone Duo support, Readdle's blog says; it shows a full Week view with a week picker and a task panel on the open Duo. Checked November 5, 2026.
App Store data as of November 5, 2026
Why it's here
Not for
If Apple's Calendar and Reminders already cover you, there is little here worth a Calendars PRO subscription.
About Calendars
Calendars by Readdle combines a calendar, task list, daily planner and habit tracker. It shows day, week, month and year views, syncs with Google Calendar and iCloud, and lets you add events and to-dos in plain language. Tasks live alongside events, routines can be tracked as habits, and calendars can be colour-coded. Meetings in Zoom, Google Meet and GoToMeeting open from the event. There are Home Screen widgets, a guided course on time management and versions for Mac, iPad and Apple Watch. Some features need Calendars PRO, sold by the month or the year.
Version 5.41 (23 October) added iPhone Duo support, with wider Week, Month and Year views, agenda and timeline side by side and a sidebar for switching between life contexts. Readdle's blog shows the Week view spread across the open Duo, with weather for each day, a column of weeks on the right and a My tasks panel over the left half.
