Calendars by Readdle
Calendars by Readdle combines calendars, events, tasks, planning, and habit tracking in one app for iOS and macOS.
What Calendars by Readdle is
Calendars by Readdle combines calendars, events, tasks, planning, and habit tracking in one app for iOS and macOS. It connects Google Calendar, Outlook, Exchange, iCloud, Apple Reminders, and Google Tasks with two-way synchronization. Natural Language Input can turn plain text into an event containing its time, location, and contact. Users can share calendars with family, friends, or colleagues and receive real-time updates, join Zoom and Google Meet meetings, and view or update calendars offline before changes sync after reconnecting. The free plan provides a basic calendar. PRO adds Planner on Mac, tasks, multiple accounts, recurring events, natural-language input, and reminders, costing $19.99 per year with a 7-day trial. Lifetime is listed at $59.99 per month and includes lifetime access, continuous support, and Family Sharing. Readdle was founded in 2007 and is headquartered in Ukraine. It states GDPR compliance, ISO/IEC 27001:2022-certified security, and encryption in transit and at rest.
Good
- Two-way sync across major calendar services
- Shared calendars with real-time updates
- Offline viewing and editing
- Natural-language event entry
- Video meeting support
Watch out
- Free plan provides only a basic calendar
- PRO costs $19.99 per year
- Lifetime plan is listed at $59.99 per month
- Mobile platform listed is iOS
Who it suits
It suits iOS and macOS users coordinating personal, family, or work schedules. Students, doctors, and business owners are among the intended users listed by Readdle.
Verdict
Calendars by Readdle brings scheduling, tasks, sharing, and meeting access together with broad calendar integrations. The free plan is limited to a basic calendar, while paid tiers add planning features and cross-device options.
Plans and prices
From Calendars by Readdle's own pricing page, checked 20 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| PRO | $19.99 a year | Planner on Mac · Tasks · Multiple accounts · Recurring events · Natural-language input · Reminders · billed annually |
| Lifetime | $59.99 a month | Lifetime access · Continuous support · Family Sharing · US pricing; prices in other regions may vary due to exchange rates and taxes |
| Free | Free | Basic calendar |
| Calendars PRO | — | Across Mac, iPhone, iPad, and Apple Watch · Planner on Mac · Tasks · Multiple accounts · Recurring events · Pro color-coding · Sidebar customization · Rooms and teammates schedules · Natural language input · Reminders · Weather updates · Interesting calendars · Subscription; exact price varies by region and local taxes and is shown in the app |
The facts
Each one read from Calendars by Readdle's own pages, with the date it was checked.
What it does
- AI data
- The privacy notice says Calendars does not use user data to train AI models, and relevant data shared with AI providers may be retained for up to 30 days for abuse monitoring.checked 8 Oct 2026
- Calendar integrations
- The app connects Google Calendar, Outlook, Exchange, iCloud, Apple Reminders, and Google Tasks.checked 8 Oct 2026
- Calendar sync
- two_waychecked 20 Sep 2026
- Intended users
- Readdle says Calendars is used by students, doctors, and business owners to manage busy schedules.checked 8 Oct 2026
- Natural language
- Natural Language Input turns plain text into an event with its time, location, and contact.checked 8 Oct 2026
- Offline use
- Users can view and update calendars offline, with changes syncing when they reconnect.checked 8 Oct 2026
- Purpose
- Calendars combines calendars, events, tasks, planning, and habit tracking in one app.checked 8 Oct 2026
- Security
- Readdle says it follows GDPR obligations, holds ISO/IEC 27001:2022-certified security, and encrypts data in transit and at rest.checked 8 Oct 2026
- Shared calendars
- Yeschecked 20 Sep 2026
- Sharing
- Users can share calendars with family, friends, or colleagues and receive real-time updates.checked 8 Oct 2026
- Support
- Calendars provides a help center with getting-started guides, tutorials, troubleshooting, billing, and privacy and security articles.checked 8 Oct 2026
- Time blocking
- Yeschecked 20 Sep 2026
- Video meetings
- Users can join Zoom, Google Meet, and other video meetings from the calendar.checked 8 Oct 2026
- Video meeting support
- Yeschecked 20 Sep 2026
The company
- Founded
- 2007checked 28 Sep 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
- Plan limits
- The free plan provides a basic calendar; the listed PRO features include tasks, multiple accounts, and cross-device access.checked 8 Oct 2026
Where it runs
- Mobile apps
- ioschecked 20 Sep 2026
- Platforms
- The product page describes native apps for iPhone, iPad, and Mac, with syncing across Apple devices.checked 8 Oct 2026
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