Instantly
Stands out: Warmup, unibox, and volume send with hosted MCP and a public API.
Watch out: Deliverability still depends on your domains and inboxes, not the tool alone.
Not the right fit for
- Teams that only need LinkedIn messaging
- Buyers looking for an ATS
Regie.ai
Stands out: Empty enrichment is free. Credits are spent on research, message drafts, contact enrichment that finds data, and dialing. You send from connected Gmail or Outlook.
Watch out: Pro is built for one person filling pipeline. Team workspaces, shared agents, custom CRM sync, and SOC 2 sit on a custom Enterprise card. Credits do not roll over.
Not the right fit for
- Large SDR floors that need shared agents and custom CRM sync on day one
- Teams that will not connect a work mailbox to send