App Lock vs Black Box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
App Lock
Secure your sensitive data and apps with a smart password lock. Protect your privacy by selecting which applications require a password for access. Features timed and location-based locking for enhanced security.
- Password lock for app access
- Select specific apps to lock
- One-click locking of selected apps
- Timed and location-based locking
- Simple and intuitive interface
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This is a smart app lock designed to protect your privacy and sensitive data. Use password lock technology to ensure that only authorized users can access your apps and data. Password Guard: Unlock apps quickly and securely with a custom password. Custom Lock: Select the apps you want to lock to protect your privacy. One-click lock: Lock all selected apps quickly and easily. Timed location lock: Automatically lock based on custom time and location. Simple interface: Intuitive and easy to use, you can start protecting your privacy without complicated settings. Protect your social media and other sensitive apps from prying eyes. Provide an extra layer of security for your personal data, even if the device is lost. Suitable for parents to ensure that children are not exposed to inappropriate content.
Black Box
Secure your phone by locking and restricting access to sensitive applications. Protect your private data with advanced password protection and prevent unauthorized app usage or in-app purchases. Enjoy comprehensive digital privacy with an easy-to-use interface.
- 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
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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.
Screenshots
Verdict
The clearest difference is rating: Black Box at 4.7 against App Lock's 3.5. Black Box also leads on ads (none vs shown) and update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Black Box holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 12 and 41 respectively.
App Lock ships an update monthly, Black Box every 3 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | App Lock | Black Box |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (12 ratings) | 4.7 (41 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | 12 | 41 — better |
| Update frequency | Monthly | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 21 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | 小锋 张 | 俊涛 刘 |
Customer experience
App Lock
Black Box
In-app purchases
App Lock
No in-app purchases
Black Box
No in-app purchases








