A calendar for your days, plans, and the smaller steps within them.
Privacy Policy
Last updated: October 28, 2026 · Developer: LEE DOYUN
Ivist does not require a separate Ivist account. We do not operate a server that receives your calendar contents, and the app does not include advertising or third-party analytics SDKs.
Your events and calendar access
Event titles, dates, notes, colors, places, parent–child relationships, and preferences are stored on your device. If you enable calendar integration, Ivist accesses calendars using Apple's EventKit framework after you grant permission. It reads the calendars you choose to display and writes events to your selected writable calendar. That calendar may sync through Apple, Google, Microsoft, or another provider configured on your device; the provider's own terms and privacy policy apply.
Optional private iCloud sync
When iCloud storage is selected and your Apple Account is available, Ivist synchronizes its event metadata through the app's private CloudKit database in your iCloud account. Apple provides this service. Selecting device-only storage keeps that Ivist data local. Switching storage does not automatically delete the separate data already saved in the other location. Calendar-account synchronization is separate from Ivist metadata synchronization.
Places and maps
You may type a place name without granting location access. Place searches and map previews use Apple MapKit services. Current location is requested only when you choose to use that feature; Ivist does not continuously track your location in the background. A place you save may include its name, address, and coordinates. Opening a place in Apple Maps or Google Maps sends the selected place or search query to that service. Its privacy policy then applies.
Notifications, widgets, and Live Activities
Event reminders use local notifications after permission is granted. Widgets and Live Activities use a locally shared snapshot of your events. Event names, times, and places may be visible on the Home Screen, Lock Screen, or other system surfaces, according to the widget and privacy options you choose. CloudKit may use system background notifications to deliver synchronization changes.
Optional tips
Small Tip, Support Development, and Big Tip are optional one-time consumable purchases. They do not unlock additional app features. Apple processes payments through the App Store and StoreKit. Ivist verifies the resulting transaction and does not receive your payment-card information.
Information you choose to share
The share extension processes text you explicitly send to Ivist to prepare an event for your review. If you share an event, its selected information is sent to the destination you choose. If you contact support by email, we receive the email address and content you send so we can respond. Email delivery is handled by the email providers involved.
Your choices
You can change calendar, notification, and location permissions in system settings; choose displayed calendars and storage in Ivist; and edit or delete events. Deleting an event from a linked calendar can also affect its synchronized copies. Deleting the app does not necessarily delete events saved in system calendars or data already stored in iCloud. Manage those copies through the corresponding calendar or iCloud settings.
Changes and questions
This page may be updated when Ivist changes. The revision date above identifies the current policy. For questions, contact hibi.attendance@gmail.com.
Ivist Support
For a bug report, question, or suggestion, email hibi.attendance@gmail.com. Please include your device, OS version, app version, and the steps that led to the issue. Avoid including private calendar information unless it is necessary to explain your request.
Use Calendar for a monthly overview, Timeline for one to seven days, and Agenda for the month's event list. In Settings you can choose appearance, calendars, holiday calendars, notifications, and storage. A child event can use its parent's dates or have its own dates. Read-only calendars cannot be edited.