PDF Reader vs AI Guard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader
This app provides a privacy-focused way to view, organize, and manage PDF files on your device. It offers tools for merging, splitting, securing documents, and converting images to PDF, all processed locally for enhanced data safety.
- View and organize PDF files
- Merge and split PDFs
- Secure documents with passwords
- Convert images to PDF
- Built-in document scanner
- Local data processing for privacy
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PDF Reader - Viewer is a privacy-focused PDF document management tool designed to help you easily view, organize, and manage your PDF files on iPhone and iPad. With useful PDF tools such as merging, splitting, and password protection, it provides a simple and convenient solution for managing your documents. All processing is performed locally on your device, helping keep your documents private and secure. Privacy Matters Your privacy comes first. - Your PDF document files stay locally on your device - All processing is performed locally - Your documents do not need to be uploaded to external servers - Keep your files private while managing them securely PDF Management - Easily manage and organize your PDF files. Scan your device and list all available PDF files - Merge multiple PDF files into one - Split large PDF files into smaller documents - Add passwords to protect sensitive files - Remove passwords from unlocked PDF files - Conversion & Creation - Convenient tools for creating and converting PDF documents. Convert images to PDF quickly - Use the built-in document scanner to scan documents and save them as PDF files - Enjoy a smooth reading experience with multiple viewing modes - File Organization & PDF Reader - Keep your documents organized and easy to access. Quickly access recently opened files - Add important documents to Favorites - Rename files - Delete unwanted files - Share documents - Print files Simple and Powerful Whether you're a student, professional, or anyone who needs a simple yet powerful document management app, PDF Reader - Viewer makes it easy to manage your files and documents. With all processing performed locally on your device, you can enjoy a secure and private PDF reading and document management experience. Download Now - Download PDF Reader - Viewer today for a simple, secure, and convenient way to read, organize, and manage your PDF files.
AI Guard
This utility app helps you clean up your iPhone storage by identifying duplicate and large media files. It also offers privacy features to manage sensitive photos and checks for digital risks like unsafe Wi-Fi connections and suspicious links.
- Smart photo and video cleanup
- Duplicate contact merging
- Sensitive photo detection
- Private media storage
- Wi-Fi and URL safety checks
- QR code scanning
- Device status review
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AI Guard - Smart iPhone Cleanup & Privacy Protection AI Guard helps you clean up storage, review device status, manage private content, and check everyday digital risks on your iPhone. From photos and videos to Wi-Fi, URLs, QR codes, contacts, and calendars, AI Guard gives you simple tools to keep your device cleaner, more organized, and more privacy-aware. Guard Center - Review iOS version, storage usage, battery level, and supported security-related status. - Check passcode/security status where available. - Get practical suggestions for storage and device management. Smart Cleanup - Detect similar photos and videos for easier review and deletion. - Find blurry photos and large media files that may take up extra space. - Remove selected items with a faster cleanup flow. - Merge duplicate contacts or phone numbers. - Delete contacts with missing names or numbers. - Find and remove expired calendar events. Privacy Protection - Identify photos that may contain sensitive personal, social, identity-related, or document-style information. - Review photos that may include location metadata. - Decide whether to delete sensitive media, keep it, or move it to Private Space. - Save selected photos and videos in a private space with app-level access control. Wi-Fi, URL & QR Safety - Scan Wi-Fi status and review basic network safety suggestions. - Test download and upload speed. - Check URL certificate information where available. - Help detect suspicious or phishing-related links. - Preview QR code content before opening it. - Review QR code links for potential safety risks. Subscription Information: This app offers auto-renewing subscriptions with weekly, monthly, or annual billing cycles; specific pricing is as displayed in the App Store. - Subscription fees will be charged to your Apple ID account upon confirmation of purchase. - Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the end of the current subscription period. - You can manage or cancel your subscription in your Apple ID account settings after purchase. - Any free trial (if applicable) will automatically convert to a paid subscription at the end of the trial period unless cancelled before the trial ends. AI Guard combines smart storage cleanup, privacy photo detection, private media storage, Wi-Fi tools, URL safety checks, QR code scanning, contact cleanup, calendar management, and device status review into one focused iPhone utility. Terms & Privacy: Privacy Policy: https://naomiomarih.com/privacy_policy.html Terms of Use: https://naomiomarih.com/terms-of-use.html By using AI Guard, you agree to our Terms of Service and Privacy Policy. If you have any questions, please contact our customer support: dindiocto22@outlook.com
Screenshots
Verdict
The clearest difference is rating: PDF Reader at 4.6 against AI Guard's 3.9. PDF Reader also leads on in-app purchases (none vs 2) and ratings volume (75 vs 7). AI Guard's advantage is update cadence (every 2 days vs every 6 days). On price, ads, 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
Both are free to download. AI Guard sells 2 in-app purchases, starting at $9.99 per 7 days. PDF Reader asks for nothing beyond the download.
PDF Reader holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: PDF Reader has 75 ratings behind it against 7, so its average is the more settled of the two.
PDF Reader ships an update every 6 days, AI Guard every 2 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | PDF Reader | AI Guard |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (75 ratings) — better | 3.9 (7 ratings) |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 75 — better | 7 |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 16 — better | 17.0 |
| Further details — not scored | ||
| Size | 116 MB | 51 MB |
| Age rating | 17+ | 9+ |
| Developer | All About Housing LLC | Hongkong Oaky Technology limited |
Customer experience
PDF Reader
AI Guard
In-app purchases
PDF Reader
No in-app purchases
AI Guard
- AI Guard Pro – Weekly Access7 Days trial$9.997 Days
- AI Guard Pro – Weekly Access3 Days trial$9.997 Days









