Comparison

App Lock vs Black Box

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

App Lock4 screens
Black Box4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
App Lock versus Black Box: the parameters behind the verdict, then further details
ParameterApp LockBlack Box
PriceFreeFree
Rating3.5 (12 ratings)4.7 (41 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings1241 — better
Update frequencyMonthlyEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size21 MB68 MB
Age rating4+4+
Developer小锋 张俊涛 刘

Customer experience

App Lock

All ratings8 ratings
Positive50.0%
Neutral25.0%
Negative25.0%

Black Box

All ratings37 ratings
Positive91.9%
Neutral5.4%
Negative2.7%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

App Lock

No in-app purchases

None

Black Box

No in-app purchases

Questions

Is App Lock free?
App Lock is free to download, with no in-app purchases.
Is Black Box free?
Black Box is free to download, with no in-app purchases.
Which has better reviews, App Lock or Black Box?
Black Box is rated higher. App Lock averages 3.5 out of 5 from 12 ratings, while Black Box averages 4.7 from 41 ratings.
Do App Lock or Black Box have ads?
App Lock shows ads; Black Box does not.
Which is updated more often, App Lock or Black Box?
App Lock ships an update monthly, and Black Box every 3 days. Most recently, App Lock was updated on October 30, 2026 and Black Box on October 24, 2026.

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