# Librarian > Audio sensitivity alert app for concentration and awareness. (iPhone/iPad app by Ari Braginsky.) - Source: https://appshunter.io/ios/app/librarian/id307291157 (this page in markdown: same URL + `.md`) - Developer: [Ari Braginsky](https://appshunter.io/developer/307291160) - Category: Lifestyle, Utilities - Price: Free - Rating: 2.60/5 from 5 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 3 MB - Languages: English, Spanish - Released: 2009-03-09 - Data updated: 2026-06-07 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/librarian/id307291157/reviews.md ## What is Librarian? Wish you could automatically tell the people around you to be quiet while you're trying to concentrate on an important task? Want to wake up at the slightest noise around you in an unfamiliar environment? Librarian for the iPhone does all of this (and more coming soon)! Simply set the audio level sensitivity and tap start to begin. Once the noise surrounding you exceeds the set sensitivity level, those around you will be politely notified with a "shhhh". Initial app icon resource courtesy of https://www.iconfinder.com If you like Librarian, please take the time to give us a nice review. It really helps us in the end. ## Key features - Set audio level sensitivity - Alerts others with a 'shhhh' - Helps concentration - Useful for waking up - Simple interface ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/librarian/id307291157/reviews.md ### 1/5 — It used to work, but doesn’t anymore *2025-02-09, version 2.4.1* Now when I try to have it start listening, there is no shush, and nothing appears in the bookmark, and it’s thinking it’s not listening to anything ### 5/5 — Cool but!! *2018-03-22, version 2.4.1* Needs more sound options. New tones! ### 5/5 — Pretty useful *2016-12-24, version 2.4.1* He best part? It makes a "shhh" sound when it goes over the sensitivity when it heard too much noise depending on the sensitivity it works well!! ### 1/5 — The idea and execution are great...BUT *2016-08-12, version 2.4.1* ..the name of the app and the stereotype are insulting" ### 1/5 — stereotyping *2015-08-29, version 2.4.0* While the app might be helpful for some, the naming is offensive to the profession. ### 5/5 — Very helpful *2015-03-21, version 2.4.0* I have a very loud voice and this app is helping me be quieter around my friends and family😺 ### 4/5 — Fantastic app, a couple of minor issues *2014-06-07* This is a great app that will get you out of bed if you find mornings to be a tortuous experience. There's a couple of minor issues however. 1. If you miss the alarm for some reason (e.g your phone goes flat) when you turn it back on it will have accumulated notifications to get you up. This is problematic because for each of the notifications you have to walk around to make the alarm stop. My phone went flat from the night before until lunch and I had to delete the app to clear the notifications, or I would have had to run a marathon to get rid of all the steps. 2. The alarm noise should play through the speakers even if head phones are plugged in. I go to sleep listening to music with headphones in which fall out by morning. Sometimes because the alarm sound is coming through my headphones I don't hear it, which also leads to problem number 1 happening. All up this is still the best alarm app yet and I've tried a few. ### 1/5 — Didn't work *2013-11-05, version 0* I couldn't get it to do anything at all. I could set the level, but when I hit Start the screen would turn green & that was it. I tried speaking directly into it, placing it by my speakers, etc. Nothing. ### 5/5 — Super for my Librarian! *2011-04-25, version 0* Hey, I know this gal  who runs a  Library  and she's one smart woman ! She always tells me  to stop talking  so silly, or else . Now, she claims to be a perfect angle  and tells me that I  don't know enough to get out of the rain . Maybe she's  right , but I always keep my 's on her, so she  doesn't mess up . ### 1/5 — Great idea but very poorly engineered app! *2010-02-08, version 0* Don't bother...a waste of app space on your phone. ## Frequently asked questions about Librarian ### What does Librarian do? Librarian alerts people around you with a 'shhhh' when the ambient noise exceeds a sensitivity level you set. It's designed to help you concentrate or be aware of your surroundings. ### Is Librarian free to use? Yes, Librarian is available for free. There are no in-app purchases or advertisements mentioned. ### What devices does Librarian support? Librarian is compatible with iPhone, iPad, and iPod devices. ### What is the age rating for Librarian? Librarian has an age rating of 4+, making it suitable for younger users and adults. ### How often is Librarian updated? The latest version, 2.4.1, was released on December 18, 2015. The app has not been updated since then. ### What do users think of Librarian? User feedback is mixed, with an average rating of 2.6 stars from 5 ratings. This suggests some users find it helpful while others may have experienced issues. ### Can Librarian be used offline? The description does not specify offline functionality, but its core purpose of monitoring ambient sound suggests it would require active use of the device's microphone. ## Version history (last 5 releases) ### 2.4.1 — 2015-12-18 This app has been updated by Apple to display the Apple Watch app icon. Bugfixes ### 2.4.0 — 2015-01-21 * New alert history view! * General updates for iOS 8, iPhone 6 and iPhone 6 Plus * Remembers last set sensitivity level * Dynamic type support * Bug fixes ### 2.3.0 — 2014-08-01 • Bugfixes ### 2.2.0 — 2014-02-27 • Localized for Spanish ### 2.1.0 — 2014-02-21 ∙ UI improvements. ∙ Bug fixes. ## Apps similar to Librarian | App | Rating | Price | Category | | --- | --- | --- | --- | | [AMO World](https://appshunter.io/ios/app/amo-world/id1633862820) | — | Free | Lifestyle | | [Polish - English Prayerbook](https://appshunter.io/ios/app/polish-english-prayerbook/id1637476760) | — | Free | Lifestyle | | [(株)JAエコパル](https://appshunter.io/ios/app/ja/id1635276580) | — | Free | Lifestyle | | [Vanlink](https://appshunter.io/ios/app/vanlink/id1638683440) | — | Free | Lifestyle | | [Rivals Barbershops](https://appshunter.io/ios/app/rivals-barbershops/id1660629140) | — | Free | Lifestyle | | [My ATF](https://appshunter.io/ios/app/my-atf/id1633629780) | — | Free | Lifestyle | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*