Comparison

App Lock vs QR Master Plus

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 applications and personal data with this privacy tool. Easily lock any app to prevent unauthorized access and keep your information out of sight from prying eyes. Enjoy enhanced device security and peace of mind.

Highlights
  • Lock any application
  • Hide sensitive apps
  • Block websites
  • Intuitive interface
  • Prevent unauthorized access
  • Enhance device privacy
Features
Read full description

App Lock is a privacy app designed to help keep your sensitive apps private and secure on your device. With App Lock, you can easily block any app you want, ensuring that you remain private and out of sight from prying eyes. The app features an intuitive and user-friendly interface that allows you to quickly and easily select the apps you want to lock. Once an app has been locked, nobody will be able to access your private data. App Lock is the perfect solution for anyone looking to ensure more privacy and security on your device. * In order to use App Lock you need to purchase the Lilucat Pro which is an annual service that costs 29.99$. Payment will be charged to iTunes Account at confirmation of purchase and auto-renews at the same price unless disabled in iTunes Account Settings at least 24 hours before the end of the current period. Your subscription can be managed in your iTunes Account Settings. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Links Terms of Service: https://applock.lilucat.com/legal/terms Privacy: https://applock.lilucat.com/legal/privacy

About

QR Master Plus

Features
Read full description

The complete QR toolkit: scan anything, connect to WiFi in one tap, and create beautiful branded QR codes with your own logo - all for a one-time price. No subscriptions. No ads. No tracking. WHAT MAKES IT DIFFERENT ADD YOUR LOGO TO QR CODES Create professional, on-brand QR codes: - Drop in any logo or image - Adjust logo size, opacity and background - Custom colors and gradients - Rounded or classic corner styles - Perfect for business cards, menus and marketing WIFI IN ONE TAP Scan a WiFi QR code and join the network instantly - just like the built-in Camera app. Password auto-filled, no typing. FAST, RELIABLE SCANNER - Scans QR codes and 12+ barcode formats (EAN-8/13, UPC-A/E, Code 128/39/93, ITF-14, Interleaved 2of5, PDF417, Data Matrix, Aztec) - Zoom, tap-to-focus and torch for tricky codes - Works on screens and in low light - Scan from photos in your library - Smart actions: open links, save contacts, join WiFi - No internet required STAY ORGANIZED - Auto-sorted folders by type (WiFi, Links, Contacts, Email, Social) - Create your own folders with colors - Search and filter your whole history - Multi-select to move or delete in bulk PROFESSIONAL CUSTOMIZATION - Custom foreground/background colors and gradients - Logo overlay with transparency - Error-correction levels for reliability - High-resolution PNG export (up to 1536 px, print-ready) - Business card templates with contact details PERFECT FOR - Business cards with your logo and details - Restaurant and cafe table menus - WiFi sharing for guests and customers - Event check-in and tickets - Product labels and inventory barcodes - Sharing all your social profiles at once PRIVATE BY DESIGN - No data collection or tracking - No cloud uploads - everything stays on your device - No analytics or third-party SDKs - No account required YOUR LANGUAGE Fully localized in 11 languages: English, Espanol, Francais, Deutsch, Italiano, Portugues, Nederlands, Arabic, Simplified Chinese and Traditional Chinese. FAIR, ONE-TIME PRICING One purchase. Yours forever. - No monthly fees - No feature limits - No ads, ever - Free updates Requires iOS 16.6 or later. Works on iPhone and iPad. Fully supports Dark Mode. Download QR Master Plus and make every code work for you. Support: support@nextstarsystems.com Website: https://nextstarsystems.com/qr-master-plus/

Screenshots

App Lock4 screens
QR Master Plus4 screens

Verdict

The call

The clearest difference is price: App Lock at Free against QR Master Plus's $1.99. QR Master Plus's advantage is in-app purchases (none vs 7) and ads (none vs shown). On update cadence, 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

App Lock is free to download; QR Master Plus costs $1.99 up front. App Lock sells 6 in-app purchases, starting at $4.99 per month. QR Master Plus asks for nothing beyond the download.

UpkeepUpdate frequency

App Lock ships an update fortnightly, QR Master Plus every 3 weeks. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
App Lock versus QR Master Plus: the parameters behind the verdict, then further details
ParameterApp LockQR Master Plus
PriceFree — better$1.99
Rating4.5 (5.2K ratings) — better—
Positive reviews57.9% of reviews—
Number of ratings5.2K — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size43 MB4 MB
Age rating4+4+
DeveloperLilucatXAVIER REISS

Bugs and requests

App Lock

Reported bugs

3 issues
  • Buttons at the bottom of the screen are inaccessible on some devices
  • Prompts are not legible with larger font settings
  • Locked apps can still be accessed by restarting the phone

Requested features

4 requests
  • Allow concealing the app locker
  • Add scheduling/time-based locking
  • Provide separate unlock code from phone passcode
  • Improve usability when Dynamic Island is in use

QR Master Plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

App Lock

Subscriptions5
  • App Lock$4.991 Month
  • App Lock3 Days trial$7.997 Days
  • App Lock2 variants$9.991 Month
Show 2 more
  • App Lock$14.991 Year
  • App Locker for iPhone$29.991 Year
One-time1
  • App Lock$59.99
None

QR Master Plus

No in-app purchases

Questions

Is App Lock free?
App Lock is free to download, with in-app purchases available.
Is QR Master Plus free?
QR Master Plus costs $1.99, with no in-app purchases.
Do App Lock or QR Master Plus have ads?
App Lock shows ads; QR Master Plus does not.
Which is updated more often, App Lock or QR Master Plus?
App Lock ships an update fortnightly, and QR Master Plus every 3 weeks. Most recently, App Lock was updated on October 20, 2026 and QR Master Plus on October 11, 2026.

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