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App Store Apps > Utilities > Kiren by F-Secure
Kiren by F-Secure icon

Kiren by F-Secure

11.1.9
F-Secure Corporation
4.65
107,039 reviews
Free

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Screenshots by F-Secure Corporation, from the the App Store listing
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AppBrain's verdict

EstablishedLoved by users
Rating on App Store
4.65
107,039 ratings
Last updated
October 27, 2026
Size
139.7 MB

Users love it: 4.6 stars from 107,039 ratings. Its best ranking is #88 in Top Grossing, Utilities in Germany.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

Comments on Kiren by F-Secure for iOS

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Store listing

By F-Secure Corporation, from the App Store
Description by F-Secure Corporation Written by the developer, not by AppBrain. Click to read.
Online scams have never been more convincing. A store that looks real but never ships the order. A text that looks like it comes from your bank. A video of someone who never said those words. These are not aimed only at the careless. They are built to catch anyone, on an ordinary day, in the middle of an ordinary purchase or message.

Kiren is a digital safety app from F-Secure, made for exactly these moments. It helps you tell what is real from what is fake, and it keeps watch over your personal information.

F-SECURE MOBILE SECURITY IS NOW KIREN
Kiren is the next version of F-Secure Mobile Security, built by the same team and completely redesigned. Your existing subscription carries over automatically. Sign in with the same email address you used before and your protection is active. There is nothing to buy again and no change in price.

CHECK BEFORE YOU ACT
• Link Checker: Confirm whether a link is safe before you open it. Shopping sites get a trust rating, useful before buying from an unfamiliar store.
• Message Checker: Paste in a suspicious text and find out in seconds whether it shows signs of a scam.
• Breach Check: See whether an email address has appeared in a known data breach.
• Quick Access to find, lock or wipe your lost device.

PROTECTION THAT RUNS IN THE BACKGROUND (Kiren Plus)
• Browsing Protection: Prevent cyber-criminals from redirecting you to malicious websites while using Safari browser. Bank and shop with confidence with Safari Browser. Browsing Protection verifies that banking sites are real and rates online stores before you buy.
• Message Protection: Filters scam texts from unknown senders out of your main inbox. Conversations with your contacts are never analyzed.
• Personal data monitoring: Watches your email addresses, phone numbers, payment cards, and identity documents around the clock. If any of them appear in a new breach, you get an alert with full details and step-by-step guidance on what to do.
• Scam Scanner: Upload a screenshot of a listing, an offer, or a photo and Kiren's AI checks it for scam tactics and deepfake manipulation.
• Breach Report: Get timely alerts whenever a company, app or service you use has a data breach along with info about how to best secure your data.

KEEP YOUR DEVICE IN GOOD SHAPE
• Device Health checks that a device lock is set and that iOS is up to date, the two settings that make the biggest difference to everyday safety.
• Recent News keeps you informed about data breaches and current scams.

SEE IT WORKING
Three screens show the whole picture. Overview gives an at-a-glance read on how well protected you are. Activity shows what has been checked and what has been caught over the past week. You shows which personal details are being watched and whether any have been exposed.

BUILT WITH PRIVACY IN MIND
Sign in with your email address and a one-time code. There is no password to remember. Your browsing events and checked messages are stored locally on your device. Watched personal details are shown partly hidden in the app.

FREE AND PLUS
Kiren Free includes Link Checker, Message Checker, Breach Check, Device Health, and security news. Kiren Plus adds Browsing Protection, Message Protection, personal data monitoring, and the Scam & Deepfake Scanner.

Kiren is made by F-Secure, protecting people online since 1988.

Subscription information: If you subscribe through the app, your subscription is charged to your Apple account. It renews automatically at the end of each subscription term unless auto-renewal is turned off at least 24 hours before the end of the current term. Auto-renewal can be turned off at any time in your App Store account settings. Any unused portion of a free trial period, if offered, is forfeited when you purchase a subscription.

Terms of Service: https://www.f-secure.com/en/legal/terms
Privacy Policy: https://www.f-secure.com/en/legal/privacy/kiren

Safety and technology

Found in the app by AppBrain
Price
Free
App size
139.7 MB
Content rating
Everyone

Technologies used by Kiren by F-Secure

Releases

Updates seen on the App Store
Version
11.1.9
Launched
October 2011

No changelog data

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Rankings

App Store top charts
Highest rank
#88
Chart
Top Grossing
Utilities
Country
Germany

App Store Rankings for Kiren by F-Secure

Top rankings

Rank Country Category List
88 Germany Utilities Top Grossing
99 Japan Utilities Top Grossing

Ranking history in Germany

About the app and developer

About Kiren by F-Secure

Kiren by F-Secure is an utilities app developed by F-Secure Corporation.

What is the rating of Kiren by F-Secure?

Kiren by F-Secure is rated 4.65 out of 5 stars, based on 110 thousand ratings.

Is Kiren by F-Secure free?

Kiren by F-Secure is free. The app size is 139.69 MB. The latest version available is 11.1.9. The last update was on October 27, 2026.

What are the requirements for Kiren by F-Secure?

The app has a content rating of Everyone. The app has been available on the App Store since October 2011.

Kiren by F-Secure is made and published by F-Secure Corporation. AppBrain is an independent app data site and isn't affiliated with F-Secure Corporation. The app name, icon, screenshots and description belong to F-Secure Corporation and are shown as published on the App Store.

Developer information for F-Secure Corporation

F-Secure Corporation

Address:

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