Comparison

App Lock vs Nas Player Pro

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 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

About

Nas Player Pro

Access and stream media directly from SMB servers on your local network. Enjoy fast playback of videos, music, images, and documents with integrated file management and an intuitive interface.

Highlights
  • Seamless SMB streaming
  • Automatic smart cover artwork
  • Recursive 'Play All' for sequential playback
  • Hybrid multi-reader for various media types
  • Ultra-fast image viewer
  • Integrated file management
  • Intuitive setup
Features
Read full description

High-Speed SMB Streaming & Viewer Turn your NAS into the ultimate media center. Nas Player Pro is an advanced utility designed for direct access and seamless streaming of videos and documents from SMB servers (Windows shared folders, NAS, Time Capsule, etc.) on your local network. 【Key Features】 • Seamless SMB Streaming: Experience zero-wait playback for large video files on your NAS (SMB) thanks to our proprietary proxy technology. • Media-Optimized Smart Covers: Automatically scans folders for artwork during music playback. The smart engine searches both the current folder and sub-folders to find and display the perfect album cover. • Recursive "Play All": Long-press any folder to instantly scan all sub-directories and enjoy uninterrupted, sequential playback of your music and video collections. • Hybrid Multi-Reader: A comprehensive solution for all your media needs—from videos and music to images (manga/comics), text files, and even PDFs. • Ultra-Fast Image Viewer: Browse images inside compressed archives (Zip/Rar) or folders at lightning speed, eliminating frustrating buffering. • Integrated File Management: Effortlessly manage and navigate local iOS files and remote NAS files within a single, unified interface. • Intuitive User Experience: No complex setup required. Simply enter your host information to gain immediate access to your entire library. • "Pro-Grade Utility": We've stripped away the unnecessary to focus on one thing: providing you with the fastest possible access to your files. Supported Formats • Video: mp4, wmv, mkv, mov, ts, avi (High bitrate TS supported) • Audio: mp3, wav • Images/Comics: jpg, jpeg, png, webp, bmp, zip, rar, cbz, cbr • Documents: pdf, txt, log, md, json, py, c, cpp, java, yaml, epub • Subtitles: srt, ass

Screenshots

App Lock4 screens
Nas Player Pro4 screens

Verdict

The call

The clearest difference is price: App Lock at Free against Nas Player Pro's $4.99. App Lock also leads on review sentiment (67% vs 50%) and ratings volume (22 vs 2). Nas Player Pro's advantage is update cadence (every 11 days vs every 5 weeks) and device support (3 vs 1). On rating, ads, in-app purchases 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

App Lock is free to download; Nas Player Pro costs $4.99 up front. App Lock sells 2 in-app purchases, starting at $2.99 per 7 days and Nas Player Pro sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for App Lock against 5.0 for Nas Player Pro. That said, the two scores are not equally well evidenced: App Lock has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 67% of App Lock's written reviews are positive against 50% of Nas Player Pro's.

UpkeepUpdate frequency

App Lock ships an update every 5 weeks, Nas Player Pro every 11 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
App Lock versus Nas Player Pro: the parameters behind the verdict, then further details
ParameterApp LockNas Player Pro
PriceFree — better$4.99
Rating4.9 (22 ratings)5.0 (2 ratings) — better
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings22 — better2
Update frequencyEvery 5 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.6 — better
Further details — not scored
Size30 MB59 MB
Age rating4+4+
DeveloperBeijing iDOTOOLS Technology Co., LtdSetsuo Sakamoto

Customer experience

App Lock

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

Nas Player Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

2 purchases

App Lock

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

Nas Player Pro

One-time4
  • 開発者への寄付(500円)$2.99
  • 開発者への寄付(1000円)$5.99
  • 開発者への寄付(2000円)$11.99
Show 1 more
  • 開発者への寄付(5000円)$29.99

Questions

Is App Lock free?
App Lock is free to download, with in-app purchases available.
Is Nas Player Pro free?
Nas Player Pro costs $4.99, and also offers in-app purchases.
Which has better reviews, App Lock or Nas Player Pro?
Nas Player Pro is rated higher. App Lock averages 4.9 out of 5 from 22 ratings, while Nas Player Pro averages 5.0 from 2 ratings.
Do App Lock or Nas Player Pro have ads?
Neither App Lock nor Nas Player Pro shows ads.
Which is updated more often, App Lock or Nas Player Pro?
App Lock ships an update every 5 weeks, and Nas Player Pro every 11 days. Most recently, App Lock was updated on October 24, 2026 and Nas Player Pro on October 28, 2026.

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