Comparison

QRCode ScanStudio vs AuthGuard

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

Head to head
About

QRCode ScanStudio

This app is a comprehensive workspace for managing machine-readable content. It allows users to scan, decode, generate, and organize QR codes and barcodes, and also convert documents to PDF. It offers advanced scanning features and structured data parsing for various payload types.

Highlights
  • Live camera scanning with advanced controls
  • Extract codes from still images
  • Parse structured data from payloads
  • Generate QR codes and barcodes
  • Convert documents to PDF
  • Searchable local library for organization
Features
Read full description

QRCode ScanStudio: PDF Lab is not a one-button QR reader. It is a structured code workspace for capturing, decoding, generating, exporting, and organizing machine-readable content on iPhone. The app combines a live camera scanning pipeline, still-image code extraction, semantic payload parsing, QR and barcode generation, document-to-PDF export, and a searchable local library in one native workflow. The result is a tool that behaves more like a compact content instrument than a disposable scanner utility. Live scanning is built on a real-time camera session with continuous autofocus, smooth focus behavior, center-weighted focus and exposure tuning, subject-area monitoring, torch control, and duplicate suppression logic. This helps the scanner remain stable during repeated reads and reduces accidental re-capture of the same payload. It also works beyond the camera. You can import an image from Photos and run barcode or QR detection on the still image, which is useful when codes are embedded in screenshots, posters, invoices, packaging, or archived media. Instead of treating every scan as raw text, the app classifies and interprets supported payloads into structured result types, including: URLs Email addresses Phone numbers SMS payloads Wi-Fi credentials vCard contact data Calendar event payloads Location-style payloads Plain text and generic barcode content When a payload contains structured data, decomposed fields are presented for faster review. For example, Wi-Fi content can expose network name, security type, and password fields; contact payloads can separate name, company, phone, and email; event payloads can surface title, location, start time, and end time. The built-in creation studio can generate scannable QR codes or barcodes for multiple real-world scenarios, including websites, text, Wi-Fi access, email, phone, SMS, contact cards, events, addresses, app links, crypto addresses, and selected social/profile shortcuts. Generated codes can be previewed, shared, stored, favorited, and revisited from the in-app library. For document workflows, PDF creation is available in two practical forms: Build one PDF from selected photos Capture paper pages with the document scanner and export them as a PDF file Everything is organized in a local history system with search, filters, favorites, generated-code records, scanned-result records, and PDF document records. Additional controls include optional scan history saving, haptic feedback, scan sound, detected-code highlighting, and automatic opening of scanned links when enabled by the user. Subscription & In-App Purchase Information Some features require a subscription. Payment will be charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime via your Apple ID account settings. Privacy Policy Link:https://www.yuehe20219.link/pp/6759906764/ Terms of Use:https://www.yuehe20219.link/tou/6759906764/

About

AuthGuard

This app provides secure two-factor authentication (2FA) by generating time-based verification codes offline. It offers features like encrypted backups, iCloud sync, and Apple Watch integration for convenient account access and management.

Highlights
  • Secure two-factor authentication
  • Offline OTP/TOTP code generation
  • Encrypted backup and restore
  • iCloud sync between Apple devices
  • Apple Watch support
  • Home Screen widgets
  • Face ID/Touch ID protection
Features
Read full description

AuthGuard is a privacy-focused two-factor authentication (2FA) app designed to make account verification simple, secure, and manageable across devices. Secure Two-Factor Authentication Supports widely used two-factor authentication standards used by many online services. You can: • Add accounts by scanning QR codes • Enter account information manually • Generate OTP / TOTP verification codes offline All verification codes are generated locally on your device and do not require an internet connection. Widgets and Apple Watch Built for the Apple ecosystem to make verification faster and more convenient. • Home Screen widgets for quick access to your codes • Apple Watch support for viewing verification codes on your wrist • Quickly check time-sensitive codes without opening the app Privacy Protection Includes multiple local protections to help keep authentication data private. • Face ID / Touch ID authentication • Optional PIN lock • Privacy Blur to hide sensitive information in the app switcher preview These protections help reduce the risk of unauthorized access when your device is unlocked or shared. Backup and Restore Provides a structured process for managing authenticator backups. • Export encrypted backup files • Review backup details such as file name, export time, and account count before sharing • Restore accounts using a guided import process This workflow helps reduce mistakes when transferring authenticator data between devices. Device Migration Switching devices should not mean losing access to your accounts. Supports: • Encrypted backup export for manual migration • Optional iCloud sync between Apple devices • Clear backup information during restoration Uses industry-standard TOTP authentication and is compatible with services that support two-factor authentication. Whether you manage personal accounts or multiple services, it provides a simple and transparent way to manage verification codes. Optional in-app purchases are available to unlock premium features. Users can choose a subscription plan or a one-time purchase. Subscriptions renew automatically by default and can be canceled anytime in Account Settings. Privacy Policy: https://www.songqing202501.link/pp/6760102423/ Terms of Use: https://www.songqing202501.link/tou/6760102423/

Screenshots

QRCode ScanStudio3 screens
AuthGuard4 screens

Verdict

The call

The clearest difference is monetization model: AuthGuard at free with in-app purchases against QRCode ScanStudio's subscription. AuthGuard also leads on update cadence (every 10 days vs every 4 weeks). On price, rating, ratings volume and ads 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. QRCode ScanStudio sells 3 in-app purchases, starting at $9.99 per 7 days and AuthGuard sells 3 in-app purchases, starting at $9.99 per 7 days. 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 — 5.0 for QRCode ScanStudio against 5.0 for AuthGuard. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

QRCode ScanStudio ships an update every 4 weeks, AuthGuard every 10 days. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 7 level
QRCode ScanStudio versus AuthGuard: the parameters behind the verdict, then further details
ParameterQRCode ScanStudioAuthGuard
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 4 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhoneiPhone
Requires iOS17.016.0 — better
Further details — not scored
Size32 MB49 MB
Age rating4+4+
Developer阳 李宇杰 辛

In-app purchases

3 purchases

QRCode ScanStudio

Subscriptions2
  • VIP Membership$9.997 Days
  • VIP Membership$39.991 Year
One-time1
  • VIP Membership$49.99
3 purchases

AuthGuard

Subscriptions2
  • VIP Membership$9.997 Days
  • VIP Membership$39.991 Year
One-time1
  • VIP Membership$59.99

Questions

Is QRCode ScanStudio free?
QRCode ScanStudio is free to download, with in-app purchases available.
Is AuthGuard free?
AuthGuard is free to download, with in-app purchases available.
Which has better reviews, QRCode ScanStudio or AuthGuard?
QRCode ScanStudio and AuthGuard are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do QRCode ScanStudio or AuthGuard have ads?
Neither QRCode ScanStudio nor AuthGuard shows ads.
Which is updated more often, QRCode ScanStudio or AuthGuard?
QRCode ScanStudio ships an update every 4 weeks, and AuthGuard every 10 days. Most recently, QRCode ScanStudio was updated on October 5, 2026 and AuthGuard on October 11, 2026.

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