AutoNymizer vs Ninja Mask
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AutoNymizer
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AutoNymizer: Professional Privacy for Your Photos Protect identities and sensitive information with AutoNymizer, the ultimate on-device AI tool for anonymizing license plates and faces. Whether you are a car enthusiast sharing photos on social media or a privacy-conscious individual, AutoNymizer provides professional-grade blurring and blackout tools in seconds. WHY AUTONYMIZER? Most blurring apps upload your private photos to the cloud for processing. AutoNymizer is different. AutoNymizer has been developed specifically for the needs of privacy minded car enthusiasts. Our advanced AI runs entirely on your device, ensuring your original photos never leave your phone. This is very useful as car meets and events can be held at locations with very spotty phone/data coverage. SMART AI-POWERED DETECTION Stop squinting to find plates and faces. AutoNymizer uses state-of-the-art machine learning to automatically detect: License Plates (Multiple angles and distances) Human Faces PRECISION EDITING TOOLS Found a plate the AI missed or want to hide a specific detail? Use our intuitive manual tools: Tap to Add: Manually place masks anywhere on the image. Double tap the mask to change the shape. Drag & Resize: Perfect control over every mask area. Adjustable Intensity: Choose between a soft Gaussian blur or a total blackout. Interactive Loupe: A high-precision zoom window appears as you drag, allowing for pixel-perfect placement. Delete Masks: Double-tap a mask to delete it. Perfect for selfies in crowds! PREMIUM DESIGN & EXPERIENCE Experience a Liquid Glass interface designed for iOS26. Adaptive UI: Toolbar icons automatically change contrast to remain visible against light or dark photos. Batch Actions: Run detection for plates, faces, or both with a single tap. Undo Support: Easily revert changes as you edit. KEY FEATURES: Real-time Camera: Anonymize targets right through the viewfinder before you even snap the photo. Photo App Import: Process existing photos from your library. Total Privacy: 100% offline processing. No accounts, no cloud, no data tracking. Custom Settings: Fine-tune default blur intensities and mask styles. AUTONYMIZER PRO Upgrade to Pro to unlock the full potential of the app: Remove Watermarks from saved images. Support the developer to enable future improvements. Protect everyone's privacy. Shine the spotlight on the car. Download AutoNymizer today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tsjapantours.com/autonymizer/privacy
Ninja Mask
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You want to post a photo of your car, but not its licence plate. Ninja Mask takes care of that in one tap. Choose a photo and the app finds the licence plate and covers it. No hunting around with your finger, no smearing mosaic over the picture. WHAT IT DOES Finds plates automatically Pick a photo and the app looks for licence plates and covers each one with a solid panel. Handles several vehicles at once If more than one car or motorcycle appears in the same photo, each plate is covered. Follows the shape of angled plates Seen from an angle, a plate is not a rectangle. The mask is shaped to match, so it does not look pasted on. Blends with the colour underneath Sunset, night, deep shade β a plate looks different in each. The mask takes the colour of the actual plate beneath it, so the mood of the photo is kept. White, yellow and green plates are all supported. Adjust it yourself Tap a mask and handles appear at its corners. Drag a corner to reshape, the centre to move. Hold a corner and a magnifier appears for precise work. Pinch to zoom the photo. You can also add a mask by hand. Works with plates from other countries Not only Japanese plates β plates written in Latin characters are found too. Save or share straight away Save the edited photo to your library, or send it directly from the share sheet. YOUR PHOTOS STAY ON YOUR DEVICE Detection, masking and saving all happen on your iPhone. Your photos are never sent to a server. No account is required. GOOD FOR - Posting photos of your car or motorcycle - Sharing a wash, a build or a ride - Listing a used vehicle or parts for sale - Showing someone your parking space or garage PLEASE NOTE - Automatic detection depends on the photo. A plate that is very small, at an extreme angle, dark or blurred may be missed. When that happens, please position a mask by hand. - Saving creates a new image with the mask baked in. Your original photo is not changed. - This app displays advertisements.
Screenshots
Verdict
The clearest difference is in-app purchases: Ninja Mask at none against AutoNymizer's 2. Ninja Mask also leads on iOS requirement (15.5 vs 18.0). AutoNymizer's advantage is ads (none vs shown). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. AutoNymizer sells 2 in-app purchases, starting at $2.99 per year. Ninja Mask asks for nothing beyond the download.
| Parameter | AutoNymizer | Ninja Mask |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 3 weeks |
| Ads | No β better | Yes |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.5 β better |
| Further details β not scored | ||
| Size | 92 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomohiko Sakai | Noah's Ark Sapporo LLC |
In-app purchases
AutoNymizer
- Support Dev$2.991 Year
- AutoNymizer Pro$4.99
Ninja Mask
No in-app purchases





