Sumi

About

Sumi finds and hides private information in your screenshots — automatically, before you share them.

Pick a photo and Sumi instantly detects what shouldn't be shared: faces, email addresses, phone numbers, URLs, street addresses, credit card numbers, prices, QR codes, and other sensitive numbers. Choose mosaic, blur, or ink blackout, then save or share. Done in seconds.

WHY SUMI

• AUTOMATIC DETECTION

Faces and personal info are found for you. Tap any box to toggle it, or tap a category chip to toggle a whole category at once.

• MASK ALL TEXT

Not sure the detector caught everything? One tap hides every line of text in the shot, and you can tap any line to bring it back.

• MY KEYWORDS

Register your own name, company, or ID once — Sumi finds and masks it in every screenshot, even when the text is spaced or slightly misread.

• PEN AND BOX TOOLS

Draw over anything the detector missed, or drag a rectangle across notification banners and account rows. Three mask styles: mosaic, blur, and sumi-ink blackout.

• REDACT MULTIPLE PHOTOS

Select up to 20 screenshots and mask them all in one go. Tap any photo to fine-tune it.

• SHARE EXTENSION

Redact directly from the share sheet of any app — no need to open Sumi first.

• REMOVE LOCATION ONLY

See exactly what is embedded in your photos — GPS coordinates, capture date, and camera model — then save copies with all of it stripped, without any masking.

• 100% PRIVATE BY DESIGN

Everything runs on your device. No network connection, no ads, no analytics, no tracking. Saved images contain no EXIF or GPS metadata.

• PAY ONCE

No subscription. No watermark. No locked features. Buy once, use forever.

Sumi (墨) is Japanese ink — the app is named after "sumi-keshi," the traditional art of blacking out text.