Voice Characters
Test voice agents before launch, monitor live calls.
At a glance
Starts at
Free
No paid plan found on the vendor's site, September 2026.
Free tier
Yes
Platforms
Web, macOS, Windows
Best for
High-growth startups and banks
Not for
Small businesses with limited resources
4.0 out of 5
Scored by a Toolio reviewer after real useOur verdict
A comprehensive platform for enterprise-grade testing and monitoring of voice agents. Not ideal for small businesses or simple chatbot solutions.
✓What it does well
Testing simulationsAutomatically generate up to 50K concurrent test calls.
Live monitoringDetect silent drift and unverified bookings in real-time production traffic.
Red teamingRun adversarial scenarios to identify potential breaches and failures.
✕Where it falls short
Limited languagesDoes not support all language dialects or accents beyond a certain list.
CI/CD integrationRequires manual setup for continuous integration, does not offer out-of-the-box CI/CD hooks.
Custom promptsCannot create custom prompts or scenarios beyond the predefined set of metrics and tests.
Key features
ScenariosAuto-generate thousands of test scenarios based on your input.
MetricsScore calls using over 50 built-in metrics to assess performance.
MonitoringContinuously monitor live production calls for issues like silent drift or unauthorized changes.
Customizable Scenariosallows creation of specific test cases