Comparison

Kiren by F vs Google Assistant

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Kiren by F

This digital safety app helps you identify online scams and protects your personal information. It offers tools to check links, messages, and data breaches, with background protection for browsing and personal data monitoring.

Highlights
  • Link Checker for safe browsing
  • Message Checker for scam detection
  • Breach Check for data exposure
  • Personal data monitoring
  • Scam Scanner with AI
  • Device Health checks
Features
Read full description

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

About

Google Assistant

This app assists with daily tasks, offering quick answers, navigation, and communication. It helps manage your day by setting reminders, playing music, and providing weather updates. Your privacy and security are prioritized with accessible controls.

Highlights
  • Send text messages
  • Set reminders
  • Play music
  • Navigate places
  • Get weather information
  • Manage privacy controls
  • Delete activity
Read full description

Google Assistant helps you get everyday tasks done more easily and is thoughtfully designed to offer help throughout your day while keeping your information private, safe and secure. Set reminders, get quick answers, find directions with Google Maps, and more while on-the-go with the help of your Google Assistant. With the Assistant app, you can: - Send text messages (e.g. "Text Kat “I’m on my way”) - Set reminders (e.g. "Remind me to buy a birthday gift for Sarah") - Play music (e.g. "Play jazz music on YouTube") - Navigate places (e.g. "Navigate to the nearest coffee shop") - Weather information (e.g. "What’s the weather today") - Learn more about your privacy controls (e.g., “Where can I change my privacy settings?”) -Delete your recent Google Assistant activity (e.g., “Delete what I said this week”)

Screenshots

Kiren by F4 screens
Google Assistant4 screens

Verdict

The call

The clearest difference is in-app purchases: Google Assistant at none against Kiren by F's 10. Google Assistant also leads on iOS requirement (15.0 vs 18.0). Kiren by F's advantage is ads (none vs shown) and chart position (#190 vs unranked). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kiren by F sells 9 in-app purchases, starting at $2.99 per month. Google Assistant asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Kiren by F against 4.7 for Google Assistant. Both are backed by a comparable volume of ratings — 107K and 67K respectively. Written reviews are what separate them: 57% of Kiren by F's written reviews are positive against 50% of Google Assistant's.

UpkeepUpdate frequency

Kiren by F ships an update every 6 weeks, Google Assistant every 2 months. Both last shipped on November 10, 2026.

Scorecard4 real differences · 7 level
Kiren by F versus Google Assistant: the parameters behind the verdict, then further details
ParameterKiren by FGoogle Assistant
PriceFreeFree
Rating4.6 (107K ratings)4.7 (67K ratings) — better
Positive reviews57.0% of reviews — better50.4% of reviews
Number of ratings107K — better67K
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#190 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size140 MB255 MB
Age rating4+17+
DeveloperF-Secure CorporationGoogle

Customer experience

Kiren by F

All ratings107,045 ratings
Positive91.6%
Neutral4.1%
Negative4.3%
Written reviews1,349 reviews
Positive57.0%
Neutral7.3%
Negative35.7%

Google Assistant

All ratings66,956 ratings
Positive94.6%
Neutral2.7%
Negative2.7%
Written reviews837 reviews
Positive50.4%
Neutral9.0%
Negative40.6%

User reviews

Kiren by F

From 107K App Store ratings

What we love

  • 🚀 Exceptional app
  • 🔒 Safe and secure
  • 🔒 Excellent protection
  • 🚀 Reliable and stable
  • 🔒 Keeping me safe online

Room to improve

  • 🐛 Crashes all the time
  • 🐛 Not working
  • 🐛 Lookout upgrades without consent
  • 🐛 Impossible to cancel
  • 🐛 Cancels ad-blockers

Google Assistant

From 67K App Store ratings

What we love

  • 👍 Helpful assistant
  • 🚀 Responsive voice recognition
  • 🎉 Fun and engaging
  • 🔍 Accurate information lookup
  • 🤖 Better than Siri

Room to improve

  • 🐛 Buggy and unreliable
  • 💤 Slow and unresponsive
  • 🔒 Privacy concerns
  • 🤔 Confusing interface
  • 🚫 Limited functionality on iOS

Bugs and requests

Kiren by F

Reported bugs

5 issues
  • Lookout app not working on iPhone 11
  • Notifications not working
  • Subscription issues
  • Locating feature not working
  • VPN disconnection issues

Requested features

5 requests
  • Ability to contact support
  • Malware detection and removal
  • Real-time phone/app scanning
  • Security report generation
  • Dark mode option

Google Assistant

Reported bugs

5 issues
  • Inability to connect to Bluetooth devices
  • Inconsistent voice command recognition
  • Reminders and notifications not working
  • Blank screens and crashes
  • Issues with syncing across devices

Requested features

5 requests
  • Dark mode option
  • Ability to edit reminders and lists
  • Better integration with Apple devices
  • More customization options
  • Support for additional languages

In-app purchases

9 purchases

Kiren by F

Subscriptions9
  • Lookout Premium$2.991 Month
  • Mobile Security Premium$4.991 Month
  • Lookout Premium Plus2 variants$9.991 Month
Show 6 more
  • Lookout Premium Plus Trial1 Month trial$9.991 Month
  • Lookout Premium Plus14 Days trial$9.991 Month
  • Lookout Premium$29.991 Year
  • Lookout Premium1 Year trial$29.991 Year
  • Lookout Premium Plus14 Days trial$59.991 Year
  • Lookout Premium Plus$99.991 Year
None

Google Assistant

No in-app purchases

Questions

Is Kiren by F free?
Kiren by F is free to download, with in-app purchases available.
Is Google Assistant free?
Google Assistant is free to download, with no in-app purchases.
Which has better reviews, Kiren by F or Google Assistant?
Google Assistant is rated higher. Kiren by F averages 4.6 out of 5 from 107K ratings, while Google Assistant averages 4.7 from 67K ratings.
Do Kiren by F or Google Assistant have ads?
Google Assistant shows ads; Kiren by F does not.
Which is updated more often, Kiren by F or Google Assistant?
Kiren by F ships an update every 6 weeks, and Google Assistant every 2 months. Most recently, Kiren by F was updated on November 10, 2026 and Google Assistant on November 10, 2026.

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