Comparison

Lock Apps 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

Lock Apps

This app helps you control and restrict the usage of other applications on your device. It offers privacy protection, time limits, and password security to prevent unauthorized access or changes.

Highlights
  • Privacy protection for sensitive content
  • Customized app usage restrictions
  • Limit app usage time
  • Prevent accidental deletion or downloads
  • Double password protection
Features
Read full description

* Lock & Protect APP Privacy & Information Security * Customized Restrictions on APP USAGE * Limit APP USAGE TIME for KIDS Features - Privacy Protection: restrict the use of any application and protect sensitive private content - Usage Restrictions: prohibit the installation of illegal applications and control application usage time - Password Protection: double password protection to prevent modification - Application Control: prohibit accidental deletion of applications, prohibit application downloads, prohibit accidental application purchases Protect NOW!

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

Lock Apps4 screens
Black Box4 screens

Verdict

The call

The clearest difference is ads: Black Box at none against Lock Apps's shown. Black Box also leads on update cadence (every 3 days vs every 3 months) and rating (4.8 vs 4.6). Lock Apps's advantage is review sentiment (100% vs 67%). On price, ratings volume, in-app purchases and device support 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, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 14 and 37 respectively. Written reviews complicate that: 100% of Lock Apps'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.

UpkeepUpdate frequency

Lock Apps ships an update every 3 months, Black Box every 3 days. The most recent releases landed on September 17, 2026 and August 28, 2026 respectively.

Scorecard5 real differences · 5 level
Lock Apps versus Black Box: the parameters behind the verdict, then further details
ParameterLock AppsBlack Box
PriceFreeFree
Rating4.6 (14 ratings)4.8 (37 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings1437 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details — not scored
Size18 MB68 MB
Age rating4+4+
Developer嘉纯 赖俊涛 刘

Customer experience

Lock Apps

All ratings14 ratings
Positive92.9%
Neutral7.1%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Black Box

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

In-app purchases

None

Lock Apps

No in-app purchases

None

Black Box

No in-app purchases

Questions

Is Lock Apps free?
Lock Apps 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, Lock Apps or Black Box?
Black Box is rated higher. Lock Apps averages 4.6 out of 5 from 14 ratings, while Black Box averages 4.8 from 37 ratings.
Do Lock Apps or Black Box have ads?
Lock Apps shows ads; Black Box does not.
Which is updated more often, Lock Apps or Black Box?
Lock Apps ships an update every 3 months, and Black Box every 3 days. Most recently, Lock Apps was updated on September 17, 2026 and Black Box on August 28, 2026.

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