Teams solved slow lead response years ago: they hired inside sales agents. AI finally makes that job affordable for everyone else. Here's what an AI ISA actually does — and the real map of options.
What the ISA job actually is
An inside sales agent does four things: answer every new lead fast, qualify them in a real conversation, book the appointment, and keep following up until the lead acts or truly dies. It's systematic, repetitive, response-time-critical work — which is why it was the first real-estate job AI got genuinely good at.
The economics, plainly
- Human ISA: $3,000–5,000/mo salary + management + turnover. Breaks even only at team lead volume.
- Team AI platforms: $499–999/mo plus per-message credits, onboarding fees ($2,000+), often annual contracts — Structurely, SwiftLeads. Real capability (including AI voice calls), priced for teams.
- Bundled platforms: Ylopo, CINC, Lofty — the AI comes only with their lead-gen or full-stack platform, $900–1,000+/mo all-in.
- Solo-agent AI: Kestrel — $99/mo founding ($149 standard), flat, self-serve, no contract; SMS-first qualification, scoring, booking, 12-month follow-up.
The honest options map
The filter that matters is not "which AI is smartest" — they all run capable models now. It's who the product is built and priced for:
- You're a solo agent buying Zillow/Realtor leads → Kestrel is the only one built for you standalone. See the side-by-sides.
- You run a team of 2–10 and want AI voice calls + live transfer → Structurely is the established option; SwiftLeads if you're brokerage-scale ($5M+, 500+ leads/mo).
- You want done-for-you lead generation with AI nurture included → Ylopo; CINC if you also want their leads and platform.
- You're ready to replace your whole stack → Lofty makes the CRM+IDX+AI bundle argument.
What to check before you buy any of them
- Response time on a real lead, not a demo — send a test inquiry at 9pm.
- What happens after day 7 — most leads convert months later; ask exactly how long follow-up runs.
- Compliance — STOP/opt-out handling on texting is law (TCPA), not a feature.
- Exit cost — contracts, onboarding fees, and platform lock-in decide how expensive a mistake is.
Related: Speed to lead, by the numbers · The Zillow response playbook · All comparisons. Competitor pricing as published on their sites, July 2026 — verify directly.