Web Opac: 1,000+ libraries

This free Android app enables convenient mobile access to cataloges and user accounts of more than five hundred public libraries, most of them currently in the German-speaking countries.
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 libraries doesn't fit into the app description anymore. Please refer to the list at https://opacapp.net/en/libraries/.
Large city libraries: Berlin, Munich, Vienna, Hamburg, Cologne, Frankfurt, Mannheim, Basel, Heidelberg, Wiesbaden, Mainz, Leipzig, Dresden, Chemnitz, Salzburg ... (List incomplete!)
Large university libraries: LMU Munich, Bochum, TU Dortmund, ULB Münster, Hamburg, ... (List incomplete!)

Support: https://opac.app/de/support/

http://opacapp.de
This app is free software! It is licensed under the MIT license and the source code is available at https://github.com/raphaelm/opacclient
Libraries interested in an adapted Version with own logo and design, own distribution and possibly special features can contact me directly under info@opacapp.net.

Recent changes:
Fixed connection issues on older devices
Integration with Android O
Last update for Android < 4.0