Comparison

Black Box vs App Lock

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

Head to head
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.

About

App Lock

Secure your personal data by locking individual apps with a password. This tool helps prevent unauthorized access to photos, videos, and social media. It also includes features to limit app usage time, aiding in parental control and promoting healthy digital habits.

Highlights
  • App locking with password
  • Private photo and video vault
  • App usage time limits
  • Parental control features
  • Advanced password security
  • App grouping
Features
Read full description

App Lock - App Blocker &Vault, easily creates an app safe, effectively protects your personal privacy. Independent security password settings, one key to lock the application, protect information security at any time and anywhere. App usage limit settings, app lock countdown, prevent kids from game addiction, cultivate healthy habits of cell phone use. Don't want others to see your photos, videos and social software? Private album encryption, so that others can not view the content of photos, videos, support for locking apps, social software and other private apps that cannot be viewed. App Lock: Apps are automatically locked immediately after exit. Enter a security password to unlock it, ensuring that sensitive content is protected from prying eyes. App Limit: Set app usage time, support specific time periods every day, apps are automatically locked. Advanced Grouping: App lock grouping settings, customize group names, enable app grouping apps with one click. Password protection: Advanced password security protection, support independent password settings, ensure that your app safe can not be opened by others. Parental control: Set up app countdown to prevent kids from getting addicted to mobile games, and develop self-discipline for healthy cell phone use. Privacy Statement: https://wordpress.m1book.com/app-locker-privacy-policy User Agreement: https://wordpress.m1book.com/app-locker-terms-conditions Member Service Agreement: https://wordpress.m1book.com/app-locker-membership-user-agreement Auto-Renewal Agreement: https://wordpress.m1book.com/app-locker-automatic-renewal-service-agreement

Screenshots

Black Box4 screens
App Lock4 screens

Verdict

The call

The clearest difference is in-app purchases: Black Box at none against App Lock's 2. Black Box also leads on update cadence (every 3 days vs every 5 weeks). On price, rating, review sentiment and ratings volume 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. App Lock sells 2 in-app purchases, starting at $2.99 per 7 days. Black Box asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

App Lock holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 41 and 22 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

UpkeepUpdate frequency

Black Box ships an update every 3 days, App Lock every 5 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Black Box versus App Lock: the parameters behind the verdict, then further details
ParameterBlack BoxApp Lock
PriceFreeFree
Rating4.7 (41 ratings)4.9 (22 ratings) — better
Positive reviews66.7% of reviews66.7% of reviews
Number of ratings41 — better22
Update frequencyEvery 3 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.0 — better16.6
Further details — not scored
Size68 MB30 MB
Age rating4+4+
Developer俊涛 刘Beijing iDOTOOLS Technology Co., Ltd

Customer experience

Black Box

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

App Lock

All ratings22 ratings
Positive95.5%
Neutral4.5%
Negative0.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Black Box

No in-app purchases

2 purchases

App Lock

Subscriptions1
  • Weekly3 Days trial$2.997 Days
One-time1
  • Lifetime$49.99

Questions

Is Black Box free?
Black Box is free to download, with no in-app purchases.
Is App Lock free?
App Lock is free to download, with in-app purchases available.
Which has better reviews, Black Box or App Lock?
App Lock is rated higher. Black Box averages 4.7 out of 5 from 41 ratings, while App Lock averages 4.9 from 22 ratings.
Do Black Box or App Lock have ads?
Neither Black Box nor App Lock shows ads.
Which is updated more often, Black Box or App Lock?
Black Box ships an update every 3 days, and App Lock every 5 weeks. Most recently, Black Box was updated on October 24, 2026 and App Lock on October 24, 2026.

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