Comparison

QR Scanner vs Sentinel Line

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

Head to head
About

QR Scanner

Easily scan and generate QR codes with customizable designs and templates. Also includes powerful tools to scan documents and convert images into high-quality PDFs for seamless sharing and management.

Highlights
  • AI-generated QR codes
  • QR code scanning (URLs, contacts, Wi-Fi)
  • QR code generation (links, text, phone)
  • Stylish QR code templates
  • Business card QR codes
  • Scan history
  • PDF scanning and conversion
Features
Read full description

QR Scanner: PDF & Code Reader Welcome to QR Scanner, your all-in-one solution for QR codes and PDF management. Scan, generate, and manage QR codes effortlessly while enjoying powerful PDF scanning and conversion tools.  1. AI QR Codes  Create unique, AI-generated QR codes that stand out. Personalize your codes with festive designs, including special Christmas templates for a seasonal touch.  2. QR Code Scanning  Quickly scan all types of QR codes, including: URLs Contact Information Calendar Events Wi-Fi Networks  Making everyday tasks faster and easier.  3. QR Code Generation  Easily generate custom QR codes for: Links Contact Info Text Phone Numbers  Share or store your data with beautiful and personalized codes.  4. Stylish QR Code Templates  Access a variety of professionally designed QR code templates, including Christmas-themed templates to make your QR codes more festive and eye-catching.  5. Business Card QR Codes  Create QR codes for your contact information and business cards. Share your details quickly and professionally with anyone, anytime.  6. Scan History & Creation Records Keep track of all your scanned and created QR codes with easy access to history and records.  7. PDF Scanning & Conversion  Transform documents, images, or notes into high-quality PDFs: Scan Photos to PDF: Convert physical files or handwritten notes effortlessly. Image to PDF: Select images from your gallery and create stunning PDFs. View and Share PDFs: Read PDFs with zoom, rotation, and sharing options for a seamless experience.  Why Choose QR Scanner? Effortless QR Code Mastery: Scan, create, and manage QR codes with ease. Powerful PDF Tools: Convert images to PDFs and scan documents for storage or sharing. Beautiful Templates: Customize your QR codes with stunning designs, including festive Christmas templates. Scan History: Never lose track of important QR codes or PDFs you've created.  Subscriptions  Unlock premium features with our flexible subscription plans: 3-Day Free Trial, then $4.99/week Lifetime Access for a one-time payment of $19.99  Scan smarter, create beautifully, and manage effortlessly with QR Scanner: PDF & Code Reader.  Terms of Use: https://sites.google.com/view/qr-scanner-terms-of-use/ Privacy Policy: https://sites.google.com/view/qr-scannerq/

About

Sentinel Line

Features
Read full description

Designed for adults, Sentinel Line helps you manage your own app access for focus, digital wellbeing, privacy, and personal security. It provides an extra layer of protection for sensitive apps and helps you stay focused by making selected apps available only in the places you choose. Create Safety Zones around places that matter to you. While you are inside a protected zone, your selected apps remain available. When you leave the zone, Sentinel Line automatically protects them. Safety Zones • Create zones around specific locations • Choose the radius of each zone • Give each zone a meaningful name • Edit zones whenever you need App Protection • Select the apps you want to protect • Protection is automatically applied when you leave a zone • Protection is automatically removed when you return • Multiple zones can work together Sentinel Line uses Apple's Family Controls and location technologies to provide location-based app protection. Your zones and configuration are stored on your device. Privacy & Location Access Sentinel Line uses your location to automatically protect your apps based on the Safety Zones you create. For automatic protection to work even when Sentinel Line is not open, Location Access must be set to “Always”. Sentinel Line uses your location only to determine whether you are inside or outside the Safety Zones you have configured. Your location data is not shared with third parties or used for advertising. You can change your location permission at any time in Settings → Privacy & Security → Location Services.

Screenshots

QR Scanner4 screens
Sentinel Line4 screens

Verdict

The call

The clearest difference is in-app purchases: Sentinel Line at none against QR Scanner's 10. Sentinel Line also leads on ads (none vs shown) and update cadence (every 4 days vs monthly). QR Scanner's advantage is iOS requirement (15.0 vs 26.1). On price 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. QR Scanner sells 10 in-app purchases, starting at $4.99 per 7 days. Sentinel Line asks for nothing beyond the download.

UpkeepUpdate frequency

QR Scanner ships an update monthly, Sentinel Line every 4 days. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
QR Scanner versus Sentinel Line: the parameters behind the verdict, then further details
ParameterQR ScannerSentinel Line
PriceFreeFree
Rating4.7 (121 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings121 — better—
Update frequencyMonthlyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better26.1
Further details — not scored
Size132 MB5 MB
Age rating4+4+
DeveloperMagic SnailFrederico Cox

In-app purchases

10 purchases

QR Scanner

Subscriptions9
  • QR Scanner Pro3 Days trial$4.997 Days
  • QR Scanner PRO 1 Week3 Days trial$5.997 Days
  • QR Scanner PRO 1 Week$5.997 Days
Show 6 more
  • QR Scanner PRO 1 Week3 Days trial$9.997 Days
  • QR Scanner PRO 1 Week7 Days trial$9.997 Days
  • QR Scanner PRO7 Days trial$12.997 Days
  • QR Scanner PRO$29.991 Year
  • QR Scanner PRO 1 Year$34.991 Year
  • QR Scanner PRO 1 Year$39.991 Year
One-time1
  • QR Scanner Pro$19.99
None

Sentinel Line

No in-app purchases

Questions

Is QR Scanner free?
QR Scanner is free to download, with in-app purchases available.
Is Sentinel Line free?
Sentinel Line is free to download, with no in-app purchases.
Do QR Scanner or Sentinel Line have ads?
QR Scanner shows ads; Sentinel Line does not.
Which is updated more often, QR Scanner or Sentinel Line?
QR Scanner ships an update monthly, and Sentinel Line every 4 days. Most recently, QR Scanner was updated on November 3, 2026 and Sentinel Line on October 29, 2026.

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