NuDefndr vs PB Controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NuDefndr
This app uses on-device analysis to automatically identify and protect sensitive photos. It offers secure storage and features to prevent accidental sharing, with advanced options for comprehensive library scanning and redaction.
- On-device sensitive content analysis
- Secure, offline photo storage
- Accidental sharing protection
- Bulk library scanning
- Encrypted vault with Face ID
- Real-time auto-scan
- Redaction editor for faces and text
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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. [-] 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. [-] Vault Camera: Shoot straight into the vault — the photo is never written to your photo library. --- 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/
PB Controller
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PB Controller is a Bluetooth Low Energy (BLE) remote control app for compatible ESP32-based robots and other supported hardware. Designed for students, parents, educators, and robot developers. Key Features - 4-button and 8-button gamepad modes - Dual joystick and joystick-with-buttons modes - Customizable control layouts and button sizes - PB2 secure pairing with a Pair Code and session verification - Layouts adapted for iPhone and iPad - Stop commands when leaving the control screen or moving the app to the background - Requires Start again after a BLE disconnection How to Use 1. Enable Bluetooth on your iPhone or iPad. 2. Open PB Controller and scan for your robot. 3. Select your compatible device. 4. Enter its Pair Code when prompted. 5. Choose a control mode and tap Start. Pair Codes contain 8-16 English letters or numbers and are case-insensitive. Compatibility Requires a robot or controller running compatible PB2 firmware. A Bluetooth connection alone does not guarantee compatibility. Hardware is not included. Safety Keep the robot in a safe testing area. Wireless connections can be interrupted; compatible robot firmware must provide a connection-loss failsafe. Privacy No ads. No personal data collected.
Screenshots
Verdict
The clearest difference is in-app purchases: PB Controller at none against NuDefndr's 3. PB Controller also leads on iOS requirement (13.0 vs 18.0). NuDefndr's advantage is update cadence (every 9 days vs every 2 months). On price, ads 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. NuDefndr sells 3 in-app purchases, starting at $8.99 per month. PB Controller asks for nothing beyond the download.
NuDefndr ships an update every 9 days, PB Controller every 2 months. Both last shipped on November 5, 2026.
| Parameter | NuDefndr | PB Controller |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 68 MB |
| Age rating | 12+ | 4+ |
| Developer | DRO1D LABS LIMITED | Kunlasatree Sayuen |
In-app purchases
NuDefndr
- NuDefndr Pro (Monthly)$8.991 Month
- NuDefndr Pro (Annual)$49.991 Year
- NuDefndr Pro (Lifetime)$129.99
PB Controller
No in-app purchases









