AppLock vs Black Box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AppLock
Secure your phone by locking individual apps with a password or fingerprint. Protect sensitive data like photos, messages, and financial information from unauthorized access. Customize your lock screen with various background options.
- PIN code and pattern locks
- Fingerprint unlock
- Lock photos and images
- Lock messages and contacts
- Customizable lock screen backgrounds
- Prevent unauthorized app access
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AppLock uses two kinds of lock: model lock & fingerprint lock - This app can lock any app with a password or fingerprint, lock photos, lock images, lock messages... - AppLock can protect every application on your phone, especially social networks. - Prevent strangers from stealing your personal information such as photos, messages, and contacts. - Stop children from using their phones to access forbidden applications. - Avoid other people making transactions, transfer money to steal credit card transaction information App Lock supports two most common types of lock: PIN code and Pattern. Pincode is very beautiful and very easy to use. The pattern have high level of security You can unlock applications faster and more conveniently using fingerprints - You can alter your background for your lock screen with 3 options: + Use your device wallpaper. + Use basic colors, gradient colors, or custom colors at your disposal. + Use photos, and images from your collection.
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 AppLock's 3.8. Black Box also leads on ads (none vs shown) and monetization model (free vs ad-supported). AppLock's advantage is iOS requirement (14.0 vs 16.0). On price, review sentiment, ratings volume and update cadence 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 3.8. Both are backed by a comparable volume of ratings — 35 and 41 respectively. Written reviews complicate that: 69% of AppLock's written reviews are positive against 67% of Black Box's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | AppLock | Black Box |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (35 ratings) | 4.7 (41 ratings) — better |
| Positive reviews | 69.2% of reviews — better | 66.7% of reviews |
| Number of ratings | 35 | 41 — better |
| Update frequency | Every 3 days | Every 3 days |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 33 MB | 68 MB |
| Age rating | 17+ | 4+ |
| Developer | Son Ngo Dinh | 俊涛 刘 |
Customer experience
AppLock
Black Box
In-app purchases
AppLock
No in-app purchases
Black Box
No in-app purchases









