Microsoft Defender: Antivirus

Name: Microsoft Defender: Antivirus
Rating: 4.4083395 (83721 reviews)
Author: Microsoft Corporation

Microsoft Corporation

★ 4.4 (83,721 ratings)

⬇ 10,000,000+ downloads

Est. actual: 33,605,965

Free

Released: Aug 17, 2020

IAP: $6.99 - $129.99 per item

No ads

Rated: Everyone

Signals

5 this week · 3 positive · 1 warning All of this week's signals →

📈Last 7 days +71K installs — 66% slower than the week before (+205K) · 11K/day since Sep 19
🏆Among Tools apps top 1% by installs gained this week (758 peers growing)
⭐Rating steady at ★ 4.41 since Sep 19
🛠Updates actively updated · updated 12 days ago · every ~14 days (3 updates tracked)
🍎App Store ★ 4.68 on 22K ratings · +92 ratings this week · on iOS since Nov 29 Microsoft Defender: Security ↗

Installs since launch

+500,507 installs · +1,895 ratings since Sep 19

Reviews

No reviews in the last 30 days (100 stored since Aug 13).

Update history

1.0.9428.0102 Oct 29, 2026 · seen Nov 4, 2026

1.0.9406.0102 Oct 19, 2026 · seen Oct 25, 2026

1.0.9309.0102 Oct 1, 2026 · seen Sep 19, 2026

Microsoft Defender: Antivirus screenshot

Microsoft Defender: Antivirus is a tools app by Microsoft Corporation with 10,000,000+ downloads (about 34M estimated). +71K installs in the last 7 days. Rated 4.4 from 84K ratings. Released Aug 17, 2020. Install growth, rank history, SDKs and ad networks.

From the store listing: “Microsoft Defender is an online security app for your digital life1 and work2. Stay safer online with Microsoft Defender for individuals1. Defender is an easy-to-use app that helps keep you and your family one step ahead of threats. Microsoft Defender for individuals is available with a Microsoft 365 Personal or…”