DAVsky – CalDAV CardDAV ICS

DAVsky keeps your device's calendars, contacts and tasks in sync with your own CalDAV/CardDAV server – open, standards-based and without routing your data through anyone else's cloud. Your data travels straight between the device and the server you choose.

WHAT DAVSKY DOES

• Sync calendars (CalDAV), contacts (CardDAV) and tasks in one app
• Tasks need a task app such as OpenTasks – Android has no built-in storage for them
• Subscribe to ICS/webcal feeds, such as holidays or team schedules
• Manage several accounts at once – DAV servers and feed subscriptions side by side
• Two-way sync: changes on the device reach the server and the other way round
• Every address book shows up as its own account in your contacts app

EVERYTHING AT A GLANCE

• Every account as a tile: how many calendars, address books and task lists are active, when it last synced and when the next sync is due
• Sync log per calendar and address book: what was downloaded and what was uploaded, split into events, tasks and contacts – runs without changes are grouped
• Clear notices instead of silent failures: problems show on the account, and if background sync stops running, DAVsky points you to the right setting on your device
• Export calendars as .ics and address books as .vcf

EASY SETUP

For many providers DAVsky guides you step by step – including Nextcloud/ownCloud, mailbox.org, Posteo, Fastmail, SOGo, Baïkal, Radicale and iCloud. For anything else, just enter the server address, even copied straight from the browser's address bar; DAVsky finds the paths itself.

YOU STAY IN CONTROL

• Separate sync interval for calendars, contacts and tasks – from "manual only" to daily, or a value of your own
• Quiet hours: no background sync at night or at times you choose
• Sync over Wi-Fi only to save mobile data
• Trust self-signed servers deliberately, with the fingerprint shown
• Sync every account with one tap – button, launcher shortcut or home-screen widget
• Light and dark themes that follow the system setting

FAIR AND OPEN

DAVsky is free and shows no ads. No data is shared with third parties: calendar, contact and task content is processed on the device and exchanged only with your server – not through us.

DAVsky is built on open standards (CalDAV, CardDAV, iCalendar, vCard). You stay in charge of your data and your servers.