# WiFi Sync Viewer vs Lock app

The clearest difference is in-app purchases: WiFi Sync Viewer at none against Lock app's 3. WiFi Sync Viewer also leads on iOS requirement (15.6 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lock app sells 3 in-app purchases, starting at $1.99 per 7 days. WiFi Sync Viewer asks for nothing beyond the download.

WiFi Sync Viewer ships an update every 5 months, Lock app every 4 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | WiFi Sync Viewer | Lock app |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 16 MB | 40 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Techno Mathematical Co.,Ltd.](https://appshunter.io/developer/1144335251) | [KRAFTCODE INFOSOL](https://appshunter.io/developer/1465078391) |

## What reviewers say

### WiFi Sync Viewer

[App page](https://appshunter.io/ios/app/wifi-sync-viewer/id1148797857)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lock app

[App page](https://appshunter.io/ios/app/lock-app-secure-vault/id1566846587)

Secure your digital life by hiding photos, videos, and apps. Utilize Face ID, Touch ID, or a passcode for robust protection. Enjoy a private browsing experience and keep sensitive notes and contacts confidential.

**Highlights:** App lock with biometric security, Photo and video encryption vault, Private web browser, Secret notes and contacts, Decoy vault option, Customizable app icon

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $2.99 | per month |
| Yealy Subscription | $7.99 | per year |


## Frequently asked questions

### Is WiFi Sync Viewer free?

WiFi Sync Viewer is free to download, with no in-app purchases.

### Is Lock app free?

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

### Do WiFi Sync Viewer or Lock app have ads?

Neither WiFi Sync Viewer nor Lock app shows ads.

### Which is updated more often, WiFi Sync Viewer or Lock app?

WiFi Sync Viewer ships an update every 5 months, and Lock app every 4 months. Most recently, WiFi Sync Viewer was updated on October 29, 2026 and Lock app on October 26, 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.*