Best AI Overlay for Mac in 2026
Several macOS apps describe themselves as "AI overlays" in 2026, with different goals: invisible-to-capture overlays for proctored exams, productivity overlays for everyday work, and accessibility overlays for screen-reading. The right pick depends on what you are trying to do.
Fracture is the only Mac app that sets the system-level window-privacy flag, making the overlay window invisible to ScreenCaptureKit, getDisplayMedia, and CGWindowList enumeration. Raycast AI, Granola, BoltAI, and similar productivity tools render normal windows that ARE visible to capture - useful for daily work, useless for proctored exams. For accessibility (read-aloud, summarize-page), Voiceflow and Apple's built-in tools dominate. We are biased: this article is on Fracture' site. The bias is rooted in capability - the privacy flag is what makes the screen-capture invisibility work, and other overlays do not set it.
Most overlay tools do not set the macOS per-window privacy flag because their use case is productivity, not stealth. We set it explicitly because it is the entire feature.
It has a free trial (24 hours) plus paid tiers ($7 for 24h, $39 for 7d, $89 for 30d). Pricing is on the download page.
You can run it, but its window will appear in screen captures. For proctored exams that record or share your screen, that defeats the purpose.
Need reference access during your exam?
Fracture runs a native floating overlay that sets the macOS window privacy flag. It is 100% excluded from screen capture feeds, window lists, and proctor recordings.