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DecSync CC

Sync contacts and calendars without a server using DecSync

DecSync CC synchronizes contacts and calendars using DecSync. To start synchronizing, all you have to do is synchronize the directory "DecSync" located in the primary external storage, using for example Syncthing.

The UI is based on the one used in DAVx⁵.

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Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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  • Version 1.4.0 (19) suggested Added on 2020-07-29

    This version requires Android 5.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • read your contacts
      Allows the app to read data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • read sync statistics
      Allows an app to read the sync stats for an account, including the history of sync events and how much data is synced.
    • modify your contacts
      Allows the app to modify the data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • toggle sync on and off
      Allows an app to modify the sync settings for an account. For example, this can be used to enable sync of the People app with an account.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • (5.1)
    • find accounts on the device
      Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.
      (5.1)
    • (5.1)
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • run foreground service
      Allows the app to make use of foreground services.
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 5.4 MiB PGP Signature | Build Log

  • Version 1.3.0 (18) - Added on 2020-07-18

    This version requires Android 5.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • read your contacts
      Allows the app to read data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • read sync statistics
      Allows an app to read the sync stats for an account, including the history of sync events and how much data is synced.
    • modify your contacts
      Allows the app to modify the data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • toggle sync on and off
      Allows an app to modify the sync settings for an account. For example, this can be used to enable sync of the People app with an account.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • (5.1)
    • find accounts on the device
      Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.
      (5.1)
    • (5.1)
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • run foreground service
      Allows the app to make use of foreground services.
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 5.3 MiB PGP Signature | Build Log

  • Version 1.2.3 (17) - Added on 2020-06-02

    This version requires Android 5.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • read your contacts
      Allows the app to read data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.
    • modify your contacts
      Allows the app to modify the data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data.
    • Read calendar events and details
      This app can read all calendar events stored on your phone and share or save your calendar data.
    • add or modify calendar events and send email to guests without owners' knowledge
      This app can add, remove, or change calendar events on your phone. This app can send messages that may appear to come from calendar owners, or change events without notifying their owners.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
    • toggle sync on and off
      Allows an app to modify the sync settings for an account. For example, this can be used to enable sync of the People app with an account.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • (5.1)
    • find accounts on the device
      Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.
      (5.1)
    • (5.1)
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.

    Download APK 5.3 MiB PGP Signature | Build Log