Hide what matters.
In one tap.
Maskduck finds sensitive info in your screenshots — phone numbers, emails, card numbers, IDs — and masks it for you. 100% on-device. No uploads. No tracking.
Coming soon to the App StoreFree · iPhone · iOS 16+
What it masks
- Phone numbersAny format, any region.
- EmailsAuto-detected via on-device OCR.
- Card numbersVisa, Mastercard, Amex — Luhn-verified.
- ID numbersPassport, national ID, long digit strings.
- IP addressesIPv4 auto-recognized.
- Anything elseDraw your own mask with brush or rectangle.
Four styles
- SolidClean black bars.
- PixelateClassic mosaic.
- BlurSoft gaussian.
- HideCover with matching background.
Privacy-first, always
- On-device OCRPhotos never leave your phone.
- No accountNo sign-in, no email required.
- No trackingNo analytics, no ads, no SDKs.
- Works offlineAirplane mode is fine.