Quick answer
Intrvio is the focused option for employer-side live voice screening.
Spark Hire is strongest when the team wants async video interviews with human review.
HireVue remains the broader enterprise suite for video interviews, assessments, and skill validation.
How to shortlist alternatives
Start with the interview format. If candidates must have a real conversation, compare live voice products first. If hiring managers only need recorded answers, async video may be enough.
Then compare governance: candidate notice, human review, logs, rubric evidence, and whether the system is making or merely supporting a hiring decision.
Where Intrvio fits
Intrvio is not trying to be every assessment format. GAIA conducts the first-round screen, asks controlled follow-ups, and produces a transcript-backed scorecard for human review.
That makes Intrvio a better fit when the pain is phone-screen repetition, inconsistent interviewer notes, or candidate drop-off from static one-way flows.