QR Guard: Check Before Open
NINJA SYSTEM Utilities iPhoneiPadiPod touch
QR Guard: Check Before Open is a free Utilities app for iPhone and iPad by NINJA SYSTEM. Requires iOS 15.5. Updated May 21, 2026.
- Price
- Free
- on the App Store
- Size
- 28 MB
- Age 4+
- Updated
- May 21
- 2026 · v1.1.5
Screenshots
About QR Guard: Check Before Open
QR Guard is a simple QR and barcode scanner that helps you preview contents before opening links. Version 1.1.0 introduces a refreshed interface with a brighter, friendlier look. The scan, history, and settings screens are easier to move between, with playful character icons that make everyday checking feel lighter while keeping the app calm and practical. ▼ Key Features ・Scan QR codes and barcodes ・Scan QR codes from images ・Preview URLs and text before opening ・Show the destination domain for links ・Notice link formats that deserve extra attention, such as shortened URLs ・Save and delete scan history on your device ・Switch the app language from Settings ▼ Privacy-Focused ・Camera data is processed on-device only, never stored or transmitted ・Scanned contents are not sent to external servers ・History stays on your device and can be deleted anytime ▼ Review Before Opening QR codes are convenient, but sometimes you want to see what they contain before visiting a link. QR Guard shows the scanned URL, text, or barcode information on a confirmation screen first. You decide whether to open the link after reviewing the contents. ▼ How to Use 1. Scan a QR code or barcode with the camera 2. Scan a QR code from an image when needed 3. Review the contents before opening 4. Check previous scans in the History tab ▼ Perfect For ・Users who want to review QR codes before opening ・People who want to check unknown links or shortened URLs carefully ・Anyone who also wants basic barcode scanning ・Users who prefer a friendly, easy-to-read scanner ・People who want scan history to stay on their device ※This app does not guarantee the safety of linked destinations. Please use your own judgment. ※Camera permission required. Used only for QR and barcode scanning.
What’s new
Version 1.1.5 · Updated May 21, 2026
- Improved app stability and reliability. - Fixed issues that could affect error reporting and app diagnostics. - Made minor maintenance and quality improvements.
App privacy
The developer, NINJA SYSTEM, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics
Alternatives to QR Guard: Check Before Open
Looking for apps like QR Guard: Check Before Open? Here are 6 similar apps on the App Store. The highest rated is URL Safety Scanner (5.0/5), and 5 of the 6 are free to download.
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第四北越 通帳アプリ
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| QR Guard: Check Before Open | – | Free | May 21, 2026 | |
| Stereo Microphone | 4.4 / 5 (9) | 2.99 USD | Oct 24, 2026 | Compare |
| Hello Transcribe | 4.4 / 5 (38) | Free | Mar 4, 2026 | Compare |
| URL Safety Scanner | 5.0 / 5 (1) | Free | Sep 5, 2026 | Compare |
| MyMelita | – | Free | Aug 12, 2026 | Compare |
| Offline Translator - OT Pro | 4.8 / 5 (64) | Free | Mar 19, 2026 | Compare |
| 第四北越 通帳アプリ | – | Free | May 26, 2026 | Compare |