This gives me the volume I need at a price that makes sense for a one-person outbound operation. I’m pulling roughly 50k contacts a month, and at that level many tools end up costing more than the campaigns return in the early months. The API is what I rely on every day: my stack is stitched together from several tools, and LeadSonar fit right in without any custom work. Data quality also held up when I tested it on the free tier, which is what ultimately convinced me to upgrade. Review collected by and hosted on G2.com.

The API docs could go deeper: a few of the less common parameters aren't really explained, so I worked them out by testing. Took ~30 mins Review collected by and hosted on G2.com.