Web Opac

Convenient access to 1,000+ public and academic libraries

This free and open source Android app enables convenient mobile access to catalogues and user accounts of more than 1,000 public and academic libraries, most of them currently in the German-speaking countries (Deutschland, Österreich, Schweiz), but also some in Australia, Canada, Italia, Nederland, Polska, United Kingdom, United States, Ελλάς and Россия.

Features of the app:

  • Search in the catalogue of your library
  • Watchlist for books
  • Search for ISBN with barcode scanner

And in some libraries:

  • View of lent media (also with multiple accounts)
  • Prolonging of lent books and cancellation of reservations
  • Reservation of books
  • Notification when books need to be returned (no warranty)
  • View of information about the library (e.g. opening hours)

The list of supported libraries is available on our website.

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.

Download F-Droid
  • Version 6.0.4 (208) - Added on 2019-07-11

    This version requires Android 4.0.3 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • 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.
    • access approximate location (network-based)
      This app can get your location based on network sources such as cell towers and Wi-Fi networks. These location services must be turned on and available on your phone for the app to be able to use them.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 6.2 MiB PGP Signature

  • Version 6.0.3 (207) - Added on 2019-06-08

    This version requires Android 4.0.3 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • 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.
    • access approximate location (network-based)
      This app can get your location based on network sources such as cell towers and Wi-Fi networks. These location services must be turned on and available on your phone for the app to be able to use them.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 6.2 MiB PGP Signature

  • Version 6.0.2 (206) - Added on 2019-06-08

    This version requires Android 4.0.3 or newer.

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

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • 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.
    • access approximate location (network-based)
      This app can get your location based on network sources such as cell towers and Wi-Fi networks. These location services must be turned on and available on your phone for the app to be able to use them.
    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.

    Download APK 6.2 MiB PGP Signature