DAVx5

Active

Country: Austria (AT)
Founded: 2013
Developer: bitfire web engineering GmbH (based in Austria)
Pricing: Freemium (DAVx⁵ Select free for select servers; full version paid)
Open source: Yes
Platforms: Android

Indexes

Calendar

Overview

DAVx⁵ is a CalDAV/CardDAV client for Android that manages and synchronizes address books, calendars, and task lists with servers, integrating data into the device's native Contacts and Calendar apps. It also supports WebDAV file access. Designed for users seeking privacy-focused synchronization with self-hosted or compatible CalDAV/CardDAV services like Nextcloud or iCloud, it stands out by providing direct control over data storage without proprietary cloud dependencies.¹⁶

Key Features

CalDAV Synchronization - Syncs calendars and events bidirectionally with Android Calendar app.
CardDAV Synchronization - Syncs contacts and address books with Android Contacts app.
Task List Management - Handles CalDAV task lists, though limited on some services like iCloud.
WebDAV File Access - Provides access to files stored on WebDAV servers.
Account Management - Supports multiple accounts connecting to various CalDAV/CardDAV services.
Automatic Sync - Uses Android WorkManager for scheduled and manual synchronization.
iCloud Compatibility - Syncs with iCloud using app-specific passwords and specific login methods.

Pricing

Plan	Price	Includes
DAVx⁵ Select	Free	Full sync capabilities limited to selected servers.
DAVx⁵ Full	Paid (one-time purchase via Google Play)	Unlimited server support, all features without restrictions.

Platforms & Requirements

DAVx⁵ runs exclusively on Android devices via Google Play Store or F-Droid. No specific minimum Android version stated in sources; integrates with native Android storage backends. Not available on iOS, desktop, or web platforms.¹²

Integrations & Ecosystem

CalDAV servers (e.g., Nextcloud, iCloud)
CardDAV servers (e.g., Nextcloud, iCloud)
WebDAV file servers
Android Contacts app
Android Calendar app
Android Tasks (via compatible apps)

Alternatives

App	Difference
Etar	Open-source Android calendar app with basic CalDAV sync, less focused on full DAV protocol management.
aCalDAV	Android CalDAV client emphasizing simplicity, but lacks CardDAV and WebDAV support.
CalDAV Synchronizer	Windows desktop app for CalDAV/CardDAV sync, not mobile-focused.
BAIKAL	Self-hosted CalDAV/CardDAV server, not a client sync app.

Reputation

DAVx⁵ is regarded as a reliable, privacy-oriented sync solution for Android users with self-hosted servers, praised for seamless integration with native apps and broad server compatibility.¹⁶ Criticisms include occasional setup complexity for certain services like iCloud and limitations such as disabled Reminders sync on newer iOS versions.⁴ The open-source nature and active development via GitHub contribute to its positive standing among FOSS enthusiasts.⁸

Sources (8)