# Black Box - Lock Restrict Apps — Keep Your Secrets - Block Apps

> App locker and restrictor for enhanced phone privacy and security. (iPhone/iPad app by 俊涛 刘.)

- Source: https://appshunter.io/ios/app/black-box-lock-restrict-apps/id6547836962 (this page in markdown: same URL + `.md`)
- Developer: [俊涛 刘](https://appshunter.io/developer/1702439770)
- Category: Utilities
- Price: Free
- Rating: 4.80/5 from 37 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 68 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Russian, Chinese (Simplified, China), Chinese (Traditional, Hong Kong SAR China)
- Released: 2024-08-26
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/black-box-lock-restrict-apps/id6547836962/reviews.md

## What is Black Box?

Black Box: Easily lock and restrict apps, protect your private data with one click. Secure your phone with a password. 100% safe and private!

Don't want others to see your privacy? Use our lock and restrict features to keep your apps and data hidden from others. Try this most secure app lock and give your phone 100% privacy protection. 

【Key Features】

App Locking: Set password protection for sensitive apps like social media, photo galleries, etc., protecting your privacy anytime, anywhere.
App Disappearance: No one but you can find your apps unless you actively reveal them.
App Restrictions: Limit app installation, deletion, in-app purchases, control app visibility everywhere, and lock app usage.
Secure Privacy: The app lock features advanced security passwords, helping you lock apps and prevent others from casually viewing in-app data.
Payment Locking: Lock App Store in-app purchases to avoid accidental payments or prevent your children from buying games.
【Why Choose Black Box?】
100% Safe and Reliable: Uses advanced encryption technology
Easy to Use: Intuitive interface design, effortless to get started
Comprehensive Protection: Guards your privacy from apps to files
Continuous Updates: We constantly improve features to provide you with the best experience

Download Black Box now and enjoy true digital privacy!

Your encouragement drives our progress! Stay tuned for more powerful features coming soon. If you encounter any issues or have suggestions while using the app, please feel free to provide feedback within the app.

blackbox@whohub.cn

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://blackbox.whohub.cn/policy/privacy

Use the most reliable app lock to protect your privacy, easily safeguard your digital privacy. Use the app lock to lock apps or protect apps from being discovered, ensuring your security.

## Key features

- App locking with password protection
- App disappearance for hidden access
- App usage restrictions
- Secure privacy with advanced passwords
- Payment locking for in-app purchases
- Intuitive interface

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/black-box-lock-restrict-apps/id6547836962/reviews.md

### 5/5 — 存在致命bug

*2026-08-08*

密码面板显示不完全，部分数字按不到

### 5/5 — Lock

*2026-05-11*

Great app

### 5/5 — 👍

*2026-04-15*

Exactly what I was looking for

### 4/5 — 很好(暫時)

*2025-07-28, version 1.0.5*

免費冇廣,亦不會收集任何資料,是我用過最好的應用鎖,可惜在冇網絡的時候不能使用

### 1/5 — 2

*2025-05-20, version 1.0.5*

只要在設定上關閉使用權限，便能解鎖😥

### 2/5 — 無法刪除應用程式

*2025-02-27, version 1.0.5*

刪不了東西關了不可刪除了還是無法刪除

### 2/5 — 不好

*2025-01-18, version 1.0.5*

Bad，還是有

### 5/5 — 好用但沒用

*2024-11-24, version 1.0.5*

就是我要鎖Roblox這個游戲卻沒顯示它也鎖不了這是為什麼？

### 5/5 — 期待面容解锁和自动跳转

*2024-08-27*

不知道什么时候支持面容解锁和自动跳转返回打开的应用

**Developer response:** 新版本已新增啦，欢迎下载使用～

## Frequently asked questions about Black Box

### What is Black Box used for?

Black Box is used to lock and restrict apps on your iPhone, protecting your private data and preventing unauthorized access. It offers features like password protection for sensitive apps and control over app usage.

### How does Black Box protect my privacy?

Black Box protects your privacy by allowing you to set password protection for sensitive apps, making them disappear from view unless you reveal them. It also helps prevent accidental in-app purchases.

### Can Black Box prevent children from making purchases?

Yes, Black Box includes a payment locking feature that can lock App Store in-app purchases. This helps prevent accidental payments or unauthorized purchases by children.

### Is Black Box available on Android devices?

Based on the provided data, Black Box is currently supported on iPhone devices only.

### How often is Black Box updated?

Black Box was last updated on September 7, 2024, with version 1.0.5. The developer states they constantly improve features for the best user experience.

### What is the age rating for Black Box?

Black Box has an age rating of 4+, making it suitable for a wide range of users.

### Does Black Box have ads?

No, the application data indicates that Black Box does not contain advertisements.

### What is the user rating for Black Box?

Black Box has a high user rating of 4.9 stars based on 20 ratings, indicating strong user satisfaction.

## Version history (last 5 releases)

### 1.0.5 — 2024-09-07

Fixed known bugs and improved system stability.
Optimized certain features to enhance responsiveness.
Improved user interface experience by fixing some display issues.

### 1.0.4 — 2024-09-06

Black Box has been updated, and we value everyone's opinions!

1. Support for new unlocking methods
2. Optimized performance, resolved lag issues, bringing you a smoother user experience. We believe these upgrades will provide you with a more fluid and enjoyable user experience!

### 1.0.3 — 2024-09-02

Thank you for your feedback! Here are the updates in this version:

1. We have optimized performance, resolving lag issues for a smoother experience.
2. We have improved the display of Arabic text, making it more elegant and accurate.

We believe these upgrades will provide you with a more fluid and enjoyable user experience!

### 1.0.2 — 2024-08-31

Thank you for your feedback! Updates in this version:

1. All-new unlock experience: Introducing multiple convenient unlock methods, including Face ID, combining enhanced security with ease of use for your device
2. Fixed image loss issue
3. Optimized performance, resolving lag for a smoother experience

### 1.0 — 2024-08-26

No release notes.

## Apps similar to Black Box

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [App Lock, Hide Passwords Apps](https://appshunter.io/ios/app/app-lock-hide-passwords-apps/id1614510749) | 4.6 (9,720) | Free | Utilities |
| [AppLock - photo lock](https://appshunter.io/ios/app/applock-photo-lock/id1509154892) | 3.6 (396) | Free | Utilities |
| [App Lock - Block Apps](https://appshunter.io/ios/app/app-lock-block-apps/id6451248050) | 4.6 (8,274) | Free | Utilities |
| [App Lock - AppLock Apps](https://appshunter.io/ios/app/app-lock-applock-apps/id6452721618) | 4.6 (1,193) | Free | Utilities |
| [AppLock - Passcode App Lock](https://appshunter.io/ios/app/applock-passcode-app-lock/id1661642866) | 4.3 (1,333) | Free | Utilities |
| [Photo/Message Lock - SafeCloud](https://appshunter.io/ios/app/photomessage-lock-safecloud/id1339555230) | 4.4 (787) | Free | Utilities |

## More apps by 俊涛 刘

- [AppLock: Hide & Secure Apps](https://appshunter.io/ios/app/applock-hide-and-secure-apps/id6463155691)

All apps by 俊涛 刘: https://appshunter.io/developer/1702439770

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*