How to blur sensitive info in a screenshot on iPhone
Names, emails, card numbers: three ways to hide them before you share — and why a black box isn’t enough.
The Prinx Blog
Guides, tutorials and honest comparisons for better screenshots on Mac, iPhone and iPad.
How to screenshot a window on Mac (and mark it up in seconds)
⌘⇧4, Space, click. Every built-in macOS screenshot shortcut explained, plus the fastest way to add an arrow, a box and blur before you share.
Prinx Team
The best screenshot apps for Mac in 2026
Built-in Markup, CleanShot X, Shottr and Prinx compared on features, price and privacy.
How to set up Back Tap to screenshot on iPhone
Double-tap the back of your iPhone and your screenshot opens ready to mark up. Two minutes of setup.
How to write a bug report with screenshots that devs actually read
Numbered steps, one arrow per problem and the right crop. A template you can copy.
Annotating screenshots with Apple Pencil on iPad
Pencil draws, your finger moves. Tips for clean arrows and handwriting that stays readable.
What’s new in Prinx 1.1
Compare two screenshots side by side, faster search and new device frames.