AuthGuard vs ScanFlow PDF Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
ScanFlow PDF Scanner
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ScanFlow PDF Scanner is a PDF workstation for scanning, converting, editing, protecting, and understanding documents in one structured workflow. It is designed for users who need more than a single-purpose scanner, allowing files to move from capture to OCR, conversion, page editing, privacy handling, AI processing, and export without switching between disconnected tools. The app is organized into dedicated workspaces for Scan, Convert, Library, AI, and Private. Scanning is only one entry point: documents can be recognized, converted, annotated, signed, reorganized, protected, summarized, and exported through a more complete document workflow. In the Scan workspace, the app supports camera capture, photo import, document scanning, and OCR-based text recognition. Its imaging flow helps improve real-world captures through document boundary detection, perspective correction, orientation adjustment, shadow reduction, contrast refinement, grayscale or black-and-white enhancement, and OCR-focused readability processing. The Convert workspace works as a practical hub for mixed document sources. It supports image to PDF, PDF to image, Word to PDF, Excel to PDF, PPT to PDF, web page to PDF, PDF merge, PDF split, page reordering, compression, and OCR text extraction. Preview and page-level controls help users check results before export. The PDF editing environment supports document viewing, page previews, highlights, underline, strikeout, squiggly markup, notes, text overlays, signatures, page rotation, blank page insertion, page deletion, and saving refined copies with clearer control over document state. The Private workspace is designed for confidentiality-oriented tasks. It supports sensitive-field detection, redaction workflows, password protection, privacy watermark generation, and local signature handling. For supported content, the app can analyze recognized text patterns such as email addresses, phone numbers, bank-card style strings, identity-like sequences, and other privacy-relevant fields to help users create safer document outputs. For content-heavy files, the app also provides AI document actions such as summarization, abstract generation, key-point extraction, rewriting, shortening, expansion, polishing, explanation, translation, tone adjustment, meeting-minutes generation, and follow-up chat based on the active file. Some features may require an in-app purchase or an active subscription. Subscription plans, if offered, will be displayed clearly inside the app before purchase. Payment will be charged to your Apple ID account after confirmation. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your App Store account settings. Privacy Policy https://www.tanglong20219.link/pp/6763491224/ Terms of Use https://www.tanglong20219.link/tou/6763491224/
Screenshots
Verdict
The clearest difference is update cadence: AuthGuard at every 10 days against ScanFlow PDF Scanner's every 3 weeks. On price, ads, in-app purchases 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
Both are free to download. AuthGuard sells 3 in-app purchases, starting at $9.99 per 7 days and ScanFlow PDF Scanner sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
AuthGuard ships an update every 10 days, ScanFlow PDF Scanner every 3 weeks. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.
| Parameter | AuthGuard | ScanFlow PDF Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | 宇杰 辛 | 倩倩 王 |
In-app purchases
AuthGuard
- VIP Membership$9.997 Days
- VIP Membership$39.991 Year
- VIP Membership$59.99
ScanFlow PDF Scanner
- VIP Membership$9.997 Days
- VIP Membership$39.991 Year
- VIP Membership$59.99
Questions
Is AuthGuard free?
Is ScanFlow PDF Scanner free?
Do AuthGuard or ScanFlow PDF Scanner have ads?
Which is updated more often, AuthGuard or ScanFlow PDF Scanner?
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