Save time by managing your King County Library System (KCLS) account on your mobile device. The KCLS app makes it easy to discover and rate titles, place holds, renew items, and find library locations.
Features:
• Find items in our collection, using filters to zero-in on what you’re looking for
• Browse bestsellers, new arrivals, and recent reader reviews
• Check title availability and map locations where titles are available now
• Place, suspend, activate, and cancel holds
• Renew items
• Rate and save titles to Shelves
• Find library hours and get directions to the nearest location
more I think that this app is so helpful for kids adults and really all ages. It is help me get through so many books in such a short time while cleaning cooking and just the lack of social time that I would have to endure just trying to go out and check out a book 10 out of 10 would recommend
I think that this app is so helpful for kids adults and really all ages. It is help me get through so many books in such a short time while cleaning cooking and just the lack of social time that I would have to endure just trying to go out and check out a book 10 out of 10 would recommend
They’ve fixed the last issues I mentioned but issues still remain: the Return book function doesn’t work from the app anymore, which extends wait times. I wish the search bar was coded less narrowly to correct for misspellings or allow for less than exact search terms.
They’ve fixed the last issues I mentioned but issues still remain: the Return book function doesn’t work from the app anymore, which extends wait times. I wish the search bar was coded less narrowly to correct for misspellings or allow for less than exact search terms.
Easy to log in and fun books to read!
Easy to log in and fun books to read!
Why on earth build an app that let’s you place holds on books but doesn’t notify you when they’re ready to be picked up? It’s beyond stupid. “We notify by email” Sorry, no. It makes zero sense to have one half of an interaction occur in one place and the second half in another. No other app does this. Even other apps used by KCLS like Libby and Overdrive don’t work that way.
Why on earth build an app that let’s you place holds on books but doesn’t notify you when they’re ready to be picked up? It’s beyond stupid. “We notify by email” Sorry, no. It makes zero sense to have one half of an interaction occur in one place and the second half in another. No other app does this. Even other apps used by KCLS like Libby and Overdrive don’t work that way.
Stability improvements for a smoother app launch and sign-in experience
2.24.0 Sep 8
Improved VoiceOver support for library carousels
Enhanced device security detection
Security and networking improvements
Bug fixes and stability improvements
2.23.0 Jun 16
Resolved splash screen loading issue on older iPadOS versions.
Corrected duplicate or incorrect opening hours display in iOS 26.
Fixed PIN/Password reset errors causing login failures and account logouts.
Removed large blank space in Format filters on iOS 18; layout now displays correctly.
2.21.0 12/09/2025
Improved accessibility, guided by WCAG 2.2 (Level AA) standards.
New and updated format icons now appear in search results.
General bug fixes and small design improvements.
2.20.1 10/27/2025
Added audience, genre, and language filters to the ‘New at the Library’ carousels.
The minimum supported version of iOS has been updated to iOS 16.0.
Includes bug fixes.
2.19.0 07/02/2025
Includes minor UI improvements and bug fixes.
2.18.0 03/27/2025
We've fixed an issue that was causing errors during barcode scanning.
2.16.2 10/22/2024
Addressed an issue where the camera on certain iPhone models had difficulty detecting barcodes at short range, improving scanning reliability.
In search results, titles without a jacket cover now display a clearer, format-specific fallback image for better visual consistency and user experience.
Includes various usability improvements and minor bug fixes.
2.16.1 10/17/2024
Home screen customization settings were lost after logging out. This issue has been fixed, and settings are now retained.
System messages continued to appear as new even after being viewed and acknowledged. This issue has been fixed.
The library card did not always display the updated expiry date. This has been corrected.
This release also includes some backend platform updates.
2.15.0 06/26/2024
Saved searches are now accessible from the search screen. The feature allows you to seamlessly access, create, and manage your saved searches within the app.
This release also includes smaller bug fixes.
2.14.0 03/25/2024
We’ve introduced a customizable home screen feature, empowering you to prioritize specific sections and streamline navigation. This gives you greater control over your home screen layout.
This release also includes some bug fixes.
2.13.0 12/15/2023
The ability to search events has been added.
App version information can now be found under ‘About this app’.
This release also includes bug fixes.
2.12.0 09/13/2023
Multiple accounts support has been added.
Landscape mode has been enabled.
List cards will now display the list type.
Jailbreak detection has been added for enhanced security.
This release also includes smaller UX improvements, accessibility enhancements, and bug fixes.
2.11.0 07/17/2023
Branch details screens now include local events.
Search results can now be sorted.
An item’s availability can now be seen from search results.
Barcodes can be scanned from the login screen.
This release also includes smaller UX improvements and bug fixes.
2.10.0 03/15/2023
Some users were seeing an incorrect barcode for their linked account. This has been fixed.
2.9.2 01/30/2023
Auto-suggestions have been added to keyword search.
The My Shelves screen now provides an overview of your shelves with quick access to itemised displays of your account.
Event cards now display ‘Featured’ and ‘Canceled’ labels. You will also be able to filter events by Featured and Canceled.
Language translations have been updated.
This release also includes smaller UX improvements as well as behind the scenes accessibility enhancements, improvements, and bug fixes.
2.9.1 12/08/2022
We have improved the app for users of iPads.
You can now filter your search results by topic, genre, and content type.
The number of applied filters now displays on the Filter screens.
We have refined the display of the My Settings screen, and added an About This App screen.
You can now unregister your account from the app.
This release also includes smaller UX improvements as well as behind the scenes accessibility enhancements, improvements, and bug fixes.
2.8.0 05/26/2022
The About This Title screen has been completely rebuilt with features to promote evaluation and discovery, including: reviews, recommendations, lists, and community contributions.
The Search screen now displays edition statements, along with vernacular metadata for titles and authors. The Filter button has been moved to the top of the screen. Pagination is now displayed at the bottom of the screen. Some actions are no longer available from the item actions menu.
The Filter button on the Locations screen has been moved to the top of the screen.
On the Home screen, viewing more new titles is done using the 'View all' button under each carousel. The Events Filters have been combined into a single button above the Events carousel.
Navigation in the app has been simplified. There is a now a single 'Back' button on all screens. The style and height of the navigation bar has also been reduced and made uniform across all screens.
Let us know what you think! The Share Feedback screen allows you to contact the library directly.
Make a typo? The Search screen now offers 'Did you mean?' suggestions for mistyped searches.
Improvements have been made to how you navigate the app: 'Pull to refresh' has been added to the Home screen, and you can now swipe to go back instead of using the Back button.
The Item action sheet on the Search screen has been redesigned.
This release also includes smaller UX improvements as well as behind the scenes accessibility enhancements, improvements, and bug fixes.
2.7 09/17/2021
It's now easier to see what you have on hold and checked out! The My Borrowing screen now provides an overview of your library account with quick access to itemised displays of your account.
Want to know what's coming soon to the library? On order titles can now be accessed from the Home screen.
Some library locations may open or closed at various times throughout the day. These times are now displayed on the Location Details screens.
In response to user feedback, the Borrowing and Visiting tabs have been renamed My Borrowing and Locations.
It's now possible to scan ISBN and UPC barcodes from the Search by Barcode screen.
This release also includes behind the scenes accessibility enhancements, improvements, and bug fixes.
2.5 03/17/2021
This release includes behind the scenes improvements and bug fixes.
2.3 04/16/2020
Your library's app has been rebuilt from the ground up with some new great features! These include:
• A brand new modern design
• Personalized elements to show information relevant to you.
• Library-wide messages so that you can be notified about closures and other important information.
• Staff lists of great items to check out from the catalog.
• A new search screen that groups together items by format.
• A new browsing experience to find items similar to what you're already looking at.
2.2 02/12/2020
Speed improvements and bug fixes.
Resolves an issue where filters might not have worked properly
1.9.4 10/11/2018
Speed improvements and bug fixes
1.9.3 09/07/2018
You can now access upcoming events right from the more screen.
1.9.2 07/13/2018
Fixes and issue with locations not appearing for some users.
1.9.1 03/26/2018
Stability improvements for a smoother app launch and sign-in experience
more Version 2.24.0 Sep 8
Data Linked to You The following data may be collected and linked to your identity:
Location Contact Info User Content Identifiers Usage Data Data Not Linked to You The following data may be collected but it is not linked to your identity:
Search History Diagnostics 
