How does the overlay feature work?

Last updated August 20, 2026

On Windows and Mac, StreamVox displays subtitles in a floating overlay window that stays on top of any application.

On iPhone the equivalent is the teleprompter, a Picture in Picture window — same idea, but iOS owns its size and position. See the teleprompter controls.

What you can customize

  • Font size — adjustable via slider to fit your screen
  • Text colorsix presets (white, yellow, green, cyan, orange, pink)
  • Dual coloring — pick separate colors for the Original speech and the Translation, so you can tell them apart at a glance
  • Transparency — slide from opaque to nearly invisible
  • Position — drag the overlay anywhere on screen
  • Display modes — single-line ticker or multi-line paragraph

Settings persistence

Your preferences are saved automatically between sessions. The overlay opens exactly where and how you left it last time.

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