# ContactFind クライアントソフト vs Microsoft Defender

The clearest difference is in-app purchases: ContactFind クライアントソフト at none against Microsoft Defender's 3. Microsoft Defender's advantage is update cadence (every 2 weeks vs every 4 months) and chart position (#152 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Microsoft Defender sells 3 in-app purchases, starting at $6.99 per month. ContactFind クライアントソフト asks for nothing beyond the download.

ContactFind クライアントソフト ships an update every 4 months, Microsoft Defender every 2 weeks. The most recent releases landed on August 17, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ContactFind クライアントソフト | Microsoft Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (21K ratings)](https://appshunter.io/ios/app/microsoft-defender-security/id1526737990/reviews)** |
| Number of ratings | — | **21K** |
| Positive reviews | — | 34.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | — | Subscription |
| Best chart rank | — | **#152** |
| Size | 19 MB | 159 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fujitsu Limited](https://appshunter.io/developer/453694053) | [Microsoft Corporation](https://appshunter.io/developer/298856275) |

## What reviewers say

### ContactFind クライアントソフト

[App page](https://appshunter.io/ios/app/contactfind/id652706211)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Microsoft Defender

[App page](https://appshunter.io/ios/app/microsoft-defender-security/id1526737990)

**Currently charting:** #152 Top Grossing · Business, #193 Top Free · Business (US App Store)

This app offers comprehensive online security for individuals and families, providing antivirus scanning, threat monitoring, and identity protection. It helps safeguard personal information by scanning the dark web and offers credit monitoring and identity theft restoration services.

**Highlights:** Antivirus scanning, Threat monitoring, Dark web scanning for identity threats, Credit monitoring, Identity theft restoration, Anti-phishing protection, Multidevice alerts

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Microsoft 365 Personal | $6.99 | per month |
| Microsoft 365 Personal | $9.99 | per month |
| Microsoft 365 Family | $12.99 | per month |

**What reviewers like**

- 🚀 Fast
- 🔒 Security
- 👍 Ease of use

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 High battery drain
- 🔍 Excessive data usage
- 🤖 Compatibility problems
- ⚠️ Disruptive to other apps

**Reported bugs**

- Login issues
- Unexpected app crashes
- Inconsistent behavior after updates

**Requested features**

- Dark mode support
- Customizable VPN settings
- Better integration with other apps


## Frequently asked questions

### Is ContactFind クライアントソフト free?

ContactFind クライアントソフト is free to download, with no in-app purchases.

### Is Microsoft Defender free?

Microsoft Defender is free to download, with in-app purchases available.

### Do ContactFind クライアントソフト or Microsoft Defender have ads?

Neither ContactFind クライアントソフト nor Microsoft Defender shows ads.

### Which is updated more often, ContactFind クライアントソフト or Microsoft Defender?

ContactFind クライアントソフト ships an update every 4 months, and Microsoft Defender every 2 weeks. Most recently, ContactFind クライアントソフト was updated on August 17, 2026 and Microsoft Defender on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*