ProctorU vs Examity - Live Proctor Services Compared
ProctorU and Examity both sell live human proctoring as a service: a real person watches your screen and webcam during the exam, asks for ID, performs a room scan, and intervenes if anything looks wrong. They run on similar tech but compete in slightly different markets.
ProctorU offers Live+ (live human, real-time) and Auto (ML-only review) tiers. Examity has Levels 1 through 4: increasing supervision, with Level 3 and 4 adding live human review. The technical surface is the same: a Chrome extension or downloadable proctor app that acquires screen and webcam via getDisplayMedia/getUserMedia, then streams over WebRTC to the proctor. Apple's WebRTC implementation respects per-window privacy. The flagged overlay window is missing from the proctor's feed and from the recording.
Key points
- ProctorU is bigger; serves NCLEX, GMAT, GRE-style high-stakes plus university exams.
- Examity is mid-market; common at continuing-ed programs and online-only universities.
- Both use WebRTC for the live stream; both honor window privacy on Mac.
- ProctorU's Guardian Browser is its own Chromium fork; Examity uses a Chrome extension.
- Both detect external monitors; use built-in display only.
How it works
┌── ProctorU Live+ ┐ ┌── Examity Level 3/4 ┐ │ │ │ │ └────────────────────────┘ └────────────────────────┘
Compatibility on Mac
| Browser | ProctorU: Guardian / Examity: Chrome ext | ~ |
| Tiers | ProctorU: Live+ / Auto, Examity: 1-4 | ~ |
| Live stream | WebRTC (both) | ~ |
| Overlay invisible | Yes (both) | ✓ |
Common questions
Will the human proctor notice me using the overlay?
They see the same WebRTC stream the recording captures. The overlay region is missing from those frames. Their attention may drift to your face, room, and audio - none of which the overlay affects.
Does Examity Level 4 use AI on top of the human?
Yes - Level 4 adds post-session AI review. The recording it scans is the same one the human watched; the overlay is missing from both.
Do ProctorU and Examity share data with each other?
No. They are separate companies with separate backends. Recordings stay with whichever you used.