San Mateo County Libraries

San Mateo County Libraries

by Peninsula Library System

8 ratings
16 reviews
Free

Details

  • Released
  • Updated
  • April 22, 2018
  • November 20, 2025
San Mateo County Libraries screenshot #1 for iPhone
San Mateo County Libraries screenshot #2 for iPhone
San Mateo County Libraries screenshot #3 for iPhone
San Mateo County Libraries screenshot #4 for iPhone
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About

Access library services from your mobile device. Manage your account, search the catalog, place holds, and use your digital library card. Discover events and access a wide range of digital resources like eBooks and eAudiobooks.

โœ“Account management
โœ“Catalog search
โœ“Place holds
โœ“Digital library card
โœ“Event discovery
โœ“Digital collection access
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What's New in San Mateo County Libraries

2025.44

November 20, 2025

Minor fixes and enhancements including: Improved experience on iOS 26 Resolved an issue where the app would have a blank screen when returning from a link

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User reviews

Horrible library system

If you are unlucky enough to live in San Mateo County and doomed to use the services of this horrible county library system that is so inept and wasteful with taxpayer money using such apps as O'Reilly which doesn't work, you are not alone.

This is like the DMV of County library systems.

You're not a customer. Not a patron. You're a victim.

What a shameful waste of taxpayer money by apathetic incompetent bureaucrats.
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adding a queue

The app is great, but other library apps I have used that are similar have a queue you can see for holds & waitlists. Would be stoked to see that in the next update!

Passwords donโ€™t work

Iโ€™ve been using this app for years, but suddenly the login doesnโ€™t work. I canโ€™t login using my library card and pin. My credentials work on the website, just not in the app. I even reset my pin, deleted and redownloaded the appโ€ฆ but it doesnโ€™t work. Itโ€™s been like this for months now.

Horrible library system

If you are unlucky enough to live in San Mateo County and doomed to use the services of this horrible county library system that is so inept and wasteful with taxpayer of money using such horrible apps as O'Reilly which doesn't work, you are not alone.

This is like the DMV of County library systems.

You're not a customer. Not a patron. You're a victim.

What a shameful waste of taxpayer money by apathetic incompetent bureaucrats.
Show more

Multi-filter searching!

The app has been overhauled to include many more features. My favorites are:

Searching with multiple filters!!!

If you have hold books ready for pick up, a banner shows at the top of the app homepage.

Developer apps

FAQ

What can I do with the San Mateo County Libraries app?

The San Mateo County Libraries app allows you to check your account, pay fines, renew items, search the catalog, place holds, and use your digital library card. You can also find upcoming events and access digital collections like eBooks, eAudiobooks, eVideos, eMusic, and eMagazines.

Is the San Mateo County Libraries app free to use?

Yes, the San Mateo County Libraries app is completely free to download and use. It is offered by the Peninsula Library System and does not require any payment.

What devices support the San Mateo County Libraries app?

The San Mateo County Libraries app is available for iPhone, iPad, and iPod devices. It is designed to work on Apple's mobile operating systems.

How often is the San Mateo County Libraries app updated?

The app was last updated on November 20, 2025, with version 2025.44. This indicates regular updates to ensure functionality and introduce new features.

What is the age rating for the San Mateo County Libraries app?

The San Mateo County Libraries app has an age rating of 17+. This is likely due to the nature of some library content or services that may be accessed through the app.

Does the San Mateo County Libraries app have advertisements?

No, the San Mateo County Libraries app does not contain advertisements. It is a free service provided by the library system.

Where can I find directions to San Mateo County Libraries branches?

The San Mateo County Libraries app provides easy access to directions to the nearest San Mateo County Libraries branch. This feature helps users locate physical library locations.

What kind of digital content is available through the app?

The app provides access to a wide range of digital content, including eBooks, eAudiobooks, eVideos, eMusic, and eMagazines. This allows users to enjoy library resources from anywhere.