Best King County Library System Apps

249+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated September 2026

KCLS is the household name in king county library system, but it's far from the only option. We track 249+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Compare top King County Library System Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KCLSKCLSFree3.9β˜… (16)NoNoSep 2026
2Libby, the library appLibby, the library appFree4.9β˜… (4.4M)NoNoSep 2026
3Seattle Public LibrarySeattle Public LibraryFree4.2β˜… (23)NoNoMay 2026
4Pierce County Library SystemPierce County Library SystemFree4.0β˜… (14)NoNoSep 2026
5Kitsap Regional LibraryKitsap Regional LibraryFree4.9β˜… (8)NoNoSep 2026
6Union County Library (NC)Union County Library (NC)Free5.0β˜… (6)NoNoJul 2026
7Chester County Library SystemChester County Library SystemFree1.8β˜… (117)NoNoAug 2026
8Hennepin County LibraryHennepin County LibraryFree3.1β˜… (23)NoNoSep 2026

Top Picks for King County Library System

KCLS#1

KCLS by King County Library System

Editor's Choice
πŸ“š Books
3.9😞(16 ratings)
Free
KCLS screenshot 1
KCLS screenshot 2
KCLS screenshot 3
KCLS screenshot 4
KCLS screenshot 5
KCLS screenshot 6

Manage your library account conveniently from your mobile device. Discover new books, place holds, renew borrowed items, and easily locate library branches and their hours.

What We Love

  • πŸ‘ Easy to log in
  • πŸ‘ Fun books to read
  • πŸ‘ Excellent app
  • πŸ‘ Helpful for all ages
  • πŸ‘ Convenient for managing holds
  • πŸ‘ Convenient for managing returns
  • πŸ‘ Easy to renew books
  • πŸ‘ Easy to check due dates
  • πŸ‘ User-friendly interface
  • πŸ‘ Pleasing to the eye
  • πŸ‘ Easy to navigate
  • πŸ‘ Easy to search for known books
  • πŸ‘ Essential app
  • πŸ‘ Very convenient
  • πŸ‘ Well designed and implemented
  • πŸ‘ Can check books out
  • πŸ‘ Can hold books
  • πŸ‘ Works great
  • πŸ‘ Much improved from older version

Room to Improve

  • πŸ› Unreliable app
  • πŸ› Constant sign in issues
  • πŸ› Failed sign in attempts count against user
  • πŸ› Return book function doesn't work
  • πŸ› Search bar coded too narrowly
  • πŸ› No notifications for holds ready
  • πŸ› App times out
  • πŸ› Bookshelf features show blank
  • πŸ› Glitching frequently
  • πŸ› Kicks user out
  • πŸ› Won't accept card or passcode
  • πŸ› System errors after login prompts
  • πŸ› Search results blank
  • πŸ› Borrowing tab won't show books
  • πŸ› Opening a book doesn't work
  • πŸ› App crashes when viewing 'For Later' shelf
  • πŸ› App loads website in all views
  • πŸ› Navigation is a mess
  • πŸ› Wasted space
  • πŸ› Hard to find things
  • πŸ› App gets worse with each update
  • πŸ› Developers lack common sense
  • πŸ› Borrowing section takes long to load
  • πŸ› Borrowing section often blank
  • πŸ› App not reliable
  • πŸ› App didn't resize on iPad
  • πŸ› App remains small on iPad
  • πŸ› Confusing new UI
  • πŸ› Horrid update
  • πŸ› New version doesn't let you search by genre
  • πŸ› New version doesn't let you search by type of item
  • πŸ› App bounces user to multiple other apps
  • πŸ› Forces multiple sign-ins
  • πŸ› Doesn't work in the end
  • πŸ› Completely useless
  • πŸ› Confusing vocabulary
  • πŸ› Counterintuitive product
  • πŸ› Horrible new update
  • πŸ› App is slow
  • πŸ› Cumbersome new version
  • πŸ› Less visually attractive new version
  • πŸ› Missing 'On Order' filter
  • πŸ› Lacks website functionalities
  • πŸ› Awful new version
  • πŸ› Not visual
  • πŸ› Not user friendly
  • πŸ› Worst App ever
  • πŸ› Missing 'Just Ordered' option
  • πŸ› Useless to user
  • πŸ› Landing page shows holds, not borrowed
  • πŸ› Takes long to open Borrowing page
  • πŸ› Real drag to wait every time
  • πŸ› Easier to use browser version
  • πŸ› Black bars on top and bottom of iPhone X screen
  • πŸ› App is adequate at best
  • πŸ› App is unloved compared to website
  • πŸ› Design is outdated
  • πŸ› Keyboard and popup windows target non-Retina devices
  • πŸ› App forced into portrait on iPad
  • πŸ› Cannot be used in landscape on iPad
  • πŸ› Does not scale to iPad screen
  • πŸ› App is almost unusable due to instability
  • πŸ› Very buggy
  • πŸ› Features to refine searches not working
  • πŸ› 'Done' button doesn't work for refinements
  • πŸ› 'Done' or 'Cancel' button doesn't work for refinements
  • πŸ› 'Refine' feature stopped working
  • πŸ› 'DONE' button for refining results isn't working
  • πŸ› App looks horrible on an iPad
  • πŸ› App keeps crashing
  • πŸ› App closes within seconds of opening
  • πŸ› App tells user something's on hold when it's not
  • πŸ› Lag with dialogue boxes
  • πŸ› Invalid Patron Access error
  • πŸ› App had a bunch of issues initially
  • πŸ› App won't stay open
  • πŸ› Redirected to mobile website for holds
  • πŸ› Redirected to mobile website for ebooks
  • πŸ› Slow when placing a hold
  • πŸ› Slow when checking account
  • πŸ› Difficulties with logging in/out
  • πŸ› Difficulties with changing accounts
  • πŸ› Can't suggest authors
  • πŸ› Can't recommend other books in a series
  • πŸ› Doesn't mark books read through Overdrive app
  • πŸ› New version is confusing
  • πŸ› New version is slow
  • πŸ› New UI very difficult to use
  • πŸ› Can't listen to audiobooks through Apple Music
  • πŸ› App gets worse with each update
  • πŸ› Developers don't have common sense
  • πŸ› App times out
  • πŸ› Bookshelf features show blank
  • πŸ› Glitching frequently
  • πŸ› Kicks user out
  • πŸ› Won't accept card or passcode
  • πŸ› System errors after login prompts
  • πŸ› Search results blank
  • πŸ› Borrowing tab won't show books
  • πŸ› Opening a book doesn't work
  • πŸ› App crashes when viewing 'For Later' shelf
  • πŸ› App loads website in all views
  • πŸ› Navigation is a mess
  • πŸ› Wasted space
  • πŸ› Hard to find things
  • πŸ› App gets worse with each update
  • πŸ› Developers lack common sense
  • πŸ› Borrowing section takes long to load
  • πŸ› Borrowing section often blank
  • πŸ› App not reliable
  • πŸ› App didn't resize on iPad
  • πŸ› App remains small on iPad
  • πŸ› Confusing new UI
  • πŸ› Horrid update
  • πŸ› New version doesn't let you search by genre
  • πŸ› New version doesn't let you search by type of item
  • πŸ› App bounces user to multiple other apps
  • πŸ› Forces multiple sign-ins
  • πŸ› Doesn't work in the end
  • πŸ› Completely useless
  • πŸ› Confusing vocabulary
  • πŸ› Counterintuitive product
  • πŸ› Horrible new update
  • πŸ› App is slow
  • πŸ› Cumbersome new version
  • πŸ› Less visually attractive new version
  • πŸ› Missing 'On Order' filter
  • πŸ› Lacks website functionalities
  • πŸ› Awful new version
  • πŸ› Not visual
  • πŸ› Not user friendly
  • πŸ› Worst App ever
  • πŸ› Missing 'Just Ordered' option
  • πŸ› Useless to user
  • πŸ› Landing page shows holds, not borrowed
  • πŸ› Takes long to open Borrowing page
  • πŸ› Real drag to wait every time
  • πŸ› Easier to use browser version
  • πŸ› Black bars on top and bottom of iPhone X screen
  • πŸ› App is adequate at best
  • πŸ› App is unloved compared to website
  • πŸ› Design is outdated
  • πŸ› Keyboard and popup windows target non-Retina devices
  • πŸ› App forced into portrait on iPad
  • πŸ› Cannot be used in landscape on iPad
  • πŸ› Does not scale to iPad screen
  • πŸ› App is almost unusable due to instability
  • πŸ› Very buggy
  • πŸ› Features to refine searches not working
  • πŸ› 'Done' button doesn't work for refinements
  • πŸ› 'Done' or 'Cancel' button doesn't work for refinements
  • πŸ› 'Refine' feature stopped working
  • πŸ› 'DONE' button for refining results isn't working
  • πŸ› App looks horrible on an iPad
  • πŸ› App keeps crashing
  • πŸ› App closes within seconds of opening
  • πŸ› App tells user something's on hold when it's not
  • πŸ› Lag with dialogue boxes
  • πŸ› Invalid Patron Access error
  • πŸ› App had a bunch of issues initially
  • πŸ› App won't stay open
  • πŸ› Redirected to mobile website for holds
  • πŸ› Redirected to mobile website for ebooks
  • πŸ› Slow when placing a hold
  • πŸ› Slow when checking account
  • πŸ› Difficulties with logging in/out
  • πŸ› Difficulties with changing accounts
  • πŸ› Can't suggest authors
  • πŸ› Can't recommend other books in a series
  • πŸ› Doesn't mark books read through Overdrive app
  • πŸ› New version is confusing
  • πŸ› New version is slow
  • πŸ› New UI very difficult to use
Libby, the library app#2

Libby, the library app by OverDrive, Inc.

Library audiobooks and ebooks
Strong Contender
πŸ“š Books
4.9😊(4.4M ratings)
Free
#3in Books
Libby, the library app screenshot 1
Libby, the library app screenshot 2
Libby, the library app screenshot 3
Libby, the library app screenshot 4
Libby, the library app screenshot 5
Libby, the library app screenshot 6

Access millions of free ebooks and audiobooks from your local library. Borrow titles instantly with your library card, download for offline enjoyment, and enjoy a customizable reading and listening experience.

What We Love

  • πŸ“š Extensive library of books and audiobooks
  • πŸ” Convenient search and browsing features
  • πŸ”– Easy to manage holds and returns
  • πŸ”„ Seamless syncing across devices
  • πŸ•°οΈ Automatic returns to avoid late fees
  • 🎧 High-quality audiobook experience
  • πŸ†“ Free access with library card

Room to Improve

  • πŸ•°οΈ Long wait times for popular titles
  • πŸ” Confusing search and filtering options
  • 🀯 Buggy and unstable performance
  • πŸ”’ Lack of offline reading/listening
  • πŸ“š Limited selection in some genres
  • πŸ”™ Unintuitive navigation and UI

More King County Library System apps to explore

FAQ about King County Library System

What are the best king county library system apps for iPhone?
KCLS tops our king county library system apps ranking as of September 2026, with a 3.9-star average from 16 App Store ratings, and it's free to download.
Yes β€” 20 of the top king county library system apps we rank are free to download, including KCLS and Libby, the library app.
KCLS has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ king county library system apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to manage your King County Library System account on your mobile device. You can search the library's collection, place holds on items, renew borrowed materials, and save titles you're interested in. It also helps you find library locations and their operating hours.
You can easily find items in the library's collection by using the search function. The app provides filters to help you narrow down your search results. You can also browse categories like bestsellers and new arrivals, and view recent reader reviews.