# NuDefndr: Photo Privacy — Scan & Hide Sensitive Photos > On-device scanner for intimate photos, with optional premium privacy features. (iPhone/iPad app by DRO1D LABS LIMITED.) - Source: https://appshunter.io/ios/app/nudefndr-photo-privacy/id6745149292 (this page in markdown: same URL + `.md`) - Developer: [DRO1D LABS LIMITED](https://appshunter.io/developer/1803083780) - Category: Utilities, Photo & Video - Price: Free with in-app purchases - Rating: 3.00/5 from 4 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 18.0 · 23 MB - Languages: American English, Japanese, Chinese (Simplified, China), Thai - Released: 2025-05-23 - Data updated: 2026-09-03 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/nudefndr-photo-privacy/id6745149292/reviews.md ## What is NuDefndr? Protect and organise your private and sensitive photos with on-device content analysis. NUDEFNDR uses Apple’s native Sensitive Content Analysis framework to identify sensitive images automatically. From forgotten screenshots to personal photos, everything stays securely on your device. --- PRIVATE BY DESIGN [-] 100% On-Device: Hardware-isolated processing. [-] Zero Tracking: No analytics, no logging, no profiling, no telemetry. [-] Offline Architecture: Your media never touches a network interface. --- CORE FEATURES (FREE) [-] Smart Scan: Isolate sensitive content inside your recent media. [-] Share Protection: Mitigation against accidental sharing errors. [-] Precision Review: Filter, sort, and isolate flagged imagery safely. [-] Always Clean: Fully functional core engine with zero ad scripts. --- NUDEFNDR PRO [-] Deep Library Analysis: Process your entire camera roll in bulk. [-] Advanced Filter Arrays: Target specific years or custom epoch ranges. [-] Encrypted Vault: ChaCha20-Poly1305 protected storage bound via Face ID. [-] High-Throughput Engine: Accelerated scanning logic optimized for massive arrays. [-] Secure Audit Trail: Append-only local activity ledgers with secure clearing rules. [-] Real-time Auto Scan: Background hooks to analyze incoming media assets. [-] Privacy Blur: Native thumbnail masking to prevent visual leakage. [-] High-Contrast Themes: Cyberpunk and terminal-inspired design variations. [-] Advanced Defenses: App lock, Panic PIN configurations, and integrity checks. [-] Documents & IDs: Optionally flag photos of payment cards, passports, IDs, and password screenshots. [-] Location Audit: Find photos carrying GPS coordinates and strip the location for good. [-] Auto-Redact: One tap detects faces and text in the redaction editor. --- WHY NUDEFNDR? Your camera roll belongs to you. Certain media requires specialized security boundaries: [-] Personal memories you'd rather keep private [-] Medical or health-related photos [-] Any high-sensitivity personal content --- REQUIREMENTS [-] iOS 18.0 or later [-] Local Photos framework permissions [-] iOS Sensitive Content Warning enabled (Settings > Privacy & Security) — powers nudity detection --- Web: https://nudefndr.com Privacy Policy: https://nudefndr.com/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - On-device photo analysis - Smart scan for sensitive images - Share protection - Review and organize flagged photos - Private vault with Face ID - Auto-scan new photos - Redact and share sensitive images ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | NuDefndr Pro (Annual) | $34.99 | per year | | NuDefndr Pro (Monthly) | $4.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | NuDefndr Pro (Lifetime) | $89.99 | one-time | ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/nudefndr-photo-privacy/id6745149292/reviews.md ### 5/5 — Great idea, but struggles with large photo libraries. *2026-03-05* This app has a really useful concept-scanning your photo library to help identify specific types of images so you can quickly review and remove them. For people with thousands of photos, this can save a lot of time. However, the app seems to have trouble handling larger libraries. When I tried scanning my entire library (about 76,000 photos), the scan repeatedly stopped before finishing, which forced me to restart the process each time. Because the app doesn't allow you to review any results until the scan is fully complete, it makes the feature difficult to use with a large collection. When I limited the scan to just my screenshots (around 1,000 images), the scan completed successfully and I was able to review the results without any issues. It seems like the app might benefit from scanning images in smaller batches instead of requiring one long scan. My guess is the issue may be related to downloading images from the cloud during the scan, but that's just a theory. I’m still giving 5 stars because it does work and I think this limitation can be worked out. I don't usually leave reviews, but since the app doesn't have many downloads yet, I'm hoping this feedback helps the developer improve it. **Developer response:** Many thanks for the 5-star rating and the detailed feedback, Tmk1994! You hit the nail on the head regarding iCloud downloads and batching. In Version 2.3.2, we added progressive saving (results batch save every 20 items so you don't lose progress) and a new iCloud timeout handler with a 'Retry' button. This should make your 76k library much easier to manage. Your scan & result progress will now persist even if the app closes or hits iOS memory limits. Please let us know how it works out for you. ### 1/5 — I don’t think it does anything *2026-01-08* All it did was scan for 3 seconds say 13 processed then didn’t do anything else after that **Developer response:** Hi, NuDefndr did complete a scan - but when Apple’s Sensitive Content Analysis is not enabled, iOS blocks results, which can make it look like “nothing happened.” Please enable it here and try again: Settings → Privacy & Security → Sensitive Content Warning. If it still doesn’t behave as expected, please contact support and I’ll investigate. The app has been extensively tested and we have not seen it miss sensitive content when the required system setting is enabled. ### 5/5 — Amazing app *2025-06-14* I love the idea, I love the layout, and I absolutely love the UI. You did an amazing job on this dev! I do not personally have a use for this as I’ve come to find out, but some friends and family members I know with children will absolutely get use out of this app as they have been looking for something like this that’s easy to use. (Basic reading of some guides, like any complex tool, will possibly be required) Anyway, great job! **Developer response:** Really appreciate you taking the time to write this. Glad the design and UI stood out - the aim is definitely to keep things clean and straightforward. Even if it’s not something you need personally, knowing it could be useful for people around you, especially parents, is a primary use case. Thanks again - reviews like this help balance out the noise and give others a clearer picture of what the app is about! ### 5/5 — Coole App *2025-05-30* Nudefndr hilft dir schnell zu erkennen ob deine Bilder/Fotos sensible Inhalte enthalten. Die Benutzeroberfläche ist intuitiv und die genaue Analyse geben dir mehr Sicherheit und Kontrolle 👍 **Developer response:** Vielen Dank für Ihr Feedback! ## Frequently asked questions about NuDefndr ### Does NuDefndr have ads? No, NuDefndr is ad-free. The app emphasizes privacy and does not include advertisements or analytics, ensuring a distraction-free experience for users. ### How much does NuDefndr Pro cost? NuDefndr Pro is available through subscription plans: $4.99 per month or $34.99 per year. These plans unlock advanced features for enhanced privacy and photo management. ### What are the system requirements for NuDefndr? NuDefndr requires iOS 17 or later and needs "Sensitive Content Warning" to be enabled in iPhone Settings. Photo access permission is also necessary for the app to function. ### How does NuDefndr protect my privacy? NuDefndr is designed for privacy, with 100% on-device analysis of photos using Apple's framework. Your photos are never uploaded or seen by the developers, ensuring zero tracking. ### Can I use NuDefndr on my iPad? Yes, NuDefndr is supported on both iPhone and iPad devices. It requires iOS 17 or later to operate. ### How often is NuDefndr updated? The latest version of NuDefndr is 2.3.1, last updated on February 20, 2026. Updates typically include bug fixes, performance improvements, and new features. ### What is the age rating for NuDefndr? NuDefndr has an age rating of 12+. This indicates it is suitable for users aged 12 and older, considering its content and features. ### What happens if I don't enable Sensitive Content Warning? If "Sensitive Content Warning" is not enabled in your iPhone Settings, NuDefndr will not be able to function. The app requires this setting to be active for its on-device analysis to work. ## Version history (last 5 releases) ### 2.6.1 — 2026-08-28 NUDEFNDR 2.6.1 refines scanning, the vault and the location tools. Scan results: a finished scan now reports back when you reopen the app, in every theme, and offers to move what it flagged into the vault. Vault: see what it holds, its size on disk, and whether your recovery key is saved. Location data: choose what to clear by place and date, instead of all at once. Display type: corrected alignment across every screen. Everything runs entirely on your device. Nothing is uploaded. ### 2.6.0 — 2026-08-19 NUDEFNDR 2.6.0 rebuilds the interface. Flat and full-width: rows run edge to edge, one clear action per screen, no cards and no borders — in every theme. Results and Review: your actions in a single row of plain words. DE-AD: display type that reads cleanly at every size. Everything runs entirely on your device. Nothing is uploaded. ### 2.5.9 — 2026-08-11 NuDefndr 2.5.9 adds direct Vault import, a clearer free tier, and refinements to Travel Mode. Add photos to the Vault directly: You no longer need to run a scan first. Open the Vault and pick photos straight from your library — they are encrypted on import, with EXIF and GPS metadata removed, and you choose whether the originals stay in Photos or go. A clearer free tier: Pro features in Settings are now grouped into a single panel per section instead of a long column of locked rows, so the settings you can actually use are no longer buried among the ones you can't. Travel Mode refinements: Arming now confirms what it changes before it takes effect. Changing your Vault PIN requires the current one. PIN fields show how many digits you have entered, and the lock-out timer counts down live instead of showing a fixed number. Ghost PIN: The Panic PIN is now called the Ghost PIN. Same feature, same code — only the name has changed. Subscription clarity: The paywall shows annual savings and the equivalent monthly price, Settings shows your current plan and renewal date, and Restore Purchases tells you what it found. Everything runs entirely on your device. Nothing is uploaded. ### 2.5.8 — 2026-08-04 NuDefndr 2.5.8 is a security and honesty release: a new Travel Mode, a fix for what the app switcher could reveal, and full-quality Vault storage. Travel Mode: For higher-risk situations, the Vault can be set to open only with a PIN you choose — Face ID will not open it while Travel Mode is on. The vault button is hidden and the app stays quiet while it's active. App switcher privacy: The app now hides its contents from the iOS app-switcher snapshot, so an open Vault can no longer appear in that preview. Full-quality Vault: Photos now enter the Vault at their original resolution instead of a reduced copy, with EXIF and GPS metadata removed. Vault key reminders: NuDefndr tells you when your Vault key has not been backed up. Without a backup, a lost or reset phone can lock you out of your vaulted photos permanently. Sharing check: Every photo in a multi-photo send is now checked, not just the first. And if Apple's Sensitive Content Warning is switched off in iOS Settings, NuDefndr tells you it could not verify your photos instead of letting them through silently. Recently Deleted reminder: After you delete photos, NuDefndr reminds you that iOS keeps them recoverable for up to 30 days — with a shortcut to remove them permanently. Also in this release: VoiceOver support for protection status, wider translation coverage, and interface fixes across themes. Everything runs entirely on your device. Nothing is uploaded. ### 2.5.7 — 2026-07-16 NuDefndr 2.5.7 strengthens protection for high-risk situations and adds a way to recover your vault if your device is ever lost. Vault Key Recovery (Pro): Export an encrypted backup of your vault key, protected by a passphrase only you know, and restore access on a new or reset device. The backup is never uploaded. Distress PIN (Pro): A separate vault PIN that permanently erases its contents the moment it is entered — for situations where you are compelled to unlock. Stronger Panic PIN: The decoy PIN is now stored with salted key derivation, so it cannot be recovered from a device backup. Existing PINs upgrade automatically. Isolated decoy audit trail: Opening the decoy vault no longer reveals the real vault's access history. Lock Screen widgets: Check your protection status from the Lock Screen and StandBy. Also in this release: a Protection widget that matches your theme, clearer confirmation after you vault, delete, or clear photos, and refinements throughout. Everything runs entirely on your device. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*