Kiren by F-Secure

Name: Kiren by F-Secure
Rating: 4.144662 (1098600 reviews)
Author: F-Secure Corporation

F-Secure Corporation

★ 4.1 (1,098,600 ratings)

⬇ 100,000,000+ downloads

Est. actual: 416,119,968

Free

IAP: $0.99 - $99.99 per item

No ads

Rated: Everyone

Signals

4 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +49K installs — 44% slower than the week before (+88K) · 5.6K/day since Sep 26
🏆Among Tools apps top 1% by installs gained this week (758 peers growing)
⭐Rating steady at ★ 4.14 since Sep 26
🛠Updates actively updated · updated 10 days ago · every ~14 days (3 updates tracked)

Installs since launch

+214,471 installs · -4,141 ratings since Sep 26

Update history

11.1.10 Oct 30, 2026 · seen Nov 3, 2026

What's new in Kiren 11.1.10 • Improved Japanese translations. • Bug fixes and stability improvements.

11.1.8 Oct 19, 2026 · seen Oct 22, 2026

F-Secure Mobile Security is now Kiren. Updated protection, same subscription, redesigned to stop latest scams: fake stores, deepfakes, scam texts, and data breaches. ---- This update makes logging in smoother, makes breach tips easier to review, improves reliability, and includes bug fixes and performance improvements.

10.58-c956ec4 Oct 2, 2026 · seen Sep 26, 2026

- Bug fixes and improvements

Kiren by F-Secure is a tools app by F-Secure Corporation with 100,000,000+ downloads (about 416M estimated). +49K installs in the last 7 days. Rated 4.1 from 1.1M ratings. Install growth, rank history, SDKs and ad networks.

From the store listing: “New name, improved protection! Lookout Life is now F-Secure Mobile Security Mobile Security & Antivirus from F-Secure provides premium mobile security & identity protection for all your Android devices. Protect your devices from viruses, malware and spyware, and rest assured you’re in safe hands with our ID theft…”