Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
BTLB Screenshots
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About BTLB

BTLB | bɪtlɪb | is your progressive library companion for libraries within Stiftung Hamburger Öffentliche Bücherhallen and Gemeinsamer Bibliotheksverbund!

As a pioneer in regards to an App for managing your library account, BTLB offers what you’d expect from a library in the modern age.

Always have your library account under control - with the Widget the next expiry date is just a glance away! Siri is your friend when you'd like to renew or search for an item. Say "Renew items with bɪtlɪb" and the Shortcut to renew your items will be triggered.

Configure if and when you want to receive reminder notifications before items are due and renew them directly from the notification.

The UI design aims to be plain and simple. Light and Dark Mode, accessibility and dynamic font are supported. And regarding your search history - that’s being synchronised across your devices. Tracking does not happen within BTLB, no user data is tracked and your account information stays in your keychain.

BTLB enables you to synchronise your German library account with your device:
you can see which items you have borrowed and how much you owe the libraries for tardily returning them. You can interact with your library as the App can renew items with a tap of your finger. Searching your favorite library allows to check on available items and store them locally in your bookmarks. Generate AI recommendations based on your bookmarks and check availability in your local library.

Stiftung Hamburger Öffentliche Bücherhallen supports both account synchronization and search, others (libraries in GBV) only support search at the moment – they will regain account synchronization in the future.

Enjoy BTLB | bɪtlɪb | and happy reading!



P.s.: please don't hesitate and let me know if there is an inconvenience in usability for you. Any feedback and suggestions are most welcome.
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What's New in the Latest Version 2.29.0

Last updated on Sep 11, 2025
Old Versions
This update gets the app ready for Liquid Glass *party emoji*

Besides that it makes some general improvements.

Enjoy BTLB | bɪtlɪb | and happy reading!

P.s.: please don't hesitate and let me know if there is an inconvenience in usability for you. Any feedback and suggestions are most welcome.
Show More
Version History
2.29.0
Sep 11, 2025
This update gets the app ready for Liquid Glass *party emoji*

Besides that it makes some general improvements.

Enjoy BTLB | bɪtlɪb | and happy reading!

P.s.: please don't hesitate and let me know if there is an inconvenience in usability for you. Any feedback and suggestions are most welcome.

BTLB FAQ

Click here to learn how to download BTLB in restricted country or region.
Check the following list to see the minimum requirements of BTLB.
iPhone
iPad

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