FAQ
How does the scanning work?
NuDefndr uses Apple's on-device SensitiveContentAnalysis framework to scan your photos directly on your iPhone or iPad. Everything runs locally—your photos are never uploaded to any external servers, ensuring maximum privacy and security. No data leaves your device, ever.
Why doesn't Share Protection block shares to Messages/Other Apps?
Due to iOS's strict security and privacy design, third-party apps like NuDefndr cannot automatically intercept content shared to other apps (e.g., Messages, Telegram, WhatsApp). Instead, NuDefndr offers a manual check: share an image to NuDefndr first from the Share Menu, and it will analyze it locally on your device, showing a warning if needed before you proceed. No data is collected or transmitted during this process.
Why are some photos skipped during scanning?
Photos may be skipped for two reasons:
1. iCloud Photos: If 'Scan iCloud Photos' is off (default), photos stored only in iCloud aren't downloaded or scanned, saving time and data while keeping everything local.
2. Already Scanned: During 'All Time' scans, photos unchanged since the last completed scan are skipped to optimize performance. All scanning happens on-device with zero data transmission.
Is my data safe?
Absolutely. NuDefndr operates entirely on-device, ensuring your photos and data never leave your iPhone or iPad. We store only basic settings and the last scan timestamp locally—no photos or analysis results are retained or transmitted. Your data is protected by iOS's security features, and we collect zero user data. See our Privacy Policy for more details.
Is NuDefndr really open source?
Yes! Key components of NuDefndr are open source on GitHub, ensuring total transparency. You can verify that our app runs locally, collects no data, and has no network activity. Check the code for sensitive content detection at our GitHub repository: github.com/j8ethr0/NuDefndr-Core.
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