Sometimes I take a screenshot of a post I like to share or save. In a recent capture, the Bluesky logo appeared in the corner, while the app itself shows a “Follow” button. I wondered why the logo shows up only in screenshots.

The trick lies in the app’s code, specifically the file Growth Hack.tsx introduced in January 2026 by mozzius. It uses the expo-privacy-sensitive package, which creates a UITextField with the Secure Text Entry property set to true. The actual content (the button) is rendered into that field’s layer.

When iOS takes a screenshot, it blanks that layer, allowing the logo to surface. On other platforms the content renders normally, so the effect is unique to iOS. The behavior mirrors similar tricks used by Telegram and Signal for secret chats.

Apple hasn’t patched this yet, and users find it a cute, albeit privacy‑related, feature. Many in the thread disliked it before the discussion was locked, but the يرت behavior remains.