Inside sales agents—human or AI—answer your leads when you're showing property or in a closing. The promise: higher contact rates, faster speed-to-lead, and fewer cold trails. The reality in 2026: fragmented pricing, opaque feature lists, and vendor pages that don't load. We set out to compare five ISA services for working real estate agents. What we found instead was a category in flux—one legacy accounting site, one all-in-one platform with bundled ISA, and three vendors with no public information.
How we approached this
We pulled published pricing pages, feature lists, and integration claims from each vendor's site. No fabricated tests, no invented agent counts, no claimed conversion rates from our own data. If a vendor page was unreachable or pricing was unlisted, we note it explicitly. Affiliate links use the format https://[vendor-domain]/?ref=kanzenai.
Smith.ai
Smith.ai
- −Search result returned Denise R. Smith Accountants in Nantwich, UK, not a real estate ISA service
- −No pricing, features, or integration claims available for ISA functionality
The research bundle returned a UK accounting and tax advisory firm with no connection to real estate lead handling. If Smith.ai operates an ISA service for agents, its vendor page was not accessible in this research cycle.
Verse.io
Verse.io
- −No vendor page reachable—pricing, features, and integrations unknown
Verse.io's site did not load in the research bundle. No published pricing, feature lists, or claims about AI vs. human coverage are available.
Conversion Monster
Conversion Monster
- −No vendor page reachable—pricing, features, and integrations unknown
Conversion Monster's site was not accessible. Pricing, feature scope, and CRM integrations remain unverified.
Ylopo
Ylopo
- +Ylopo AI Text + Voice listed as part of platform—handles lead nurture and follow-up
- +Unlimited user seats and monthly marketing budget adjustments
- +No long-term contracts
- −No standalone ISA pricing published—ISA features bundled into full lead-gen platform
- −Pricing page requires booking a demo for cost details
- −Cannot isolate ISA cost from website, CRM, and ad-spend components
Ylopo's pricing page lists a 'Core Solution' tier with Ylopo AI Text + Voice included, but no dollar figure is published. The platform bundles ISA functionality with lead generation, IDX, CRM integration, and ad management. If you want only inbound lead answering without the full stack, Ylopo does not list a standalone SKU. Per the vendor's feature list, Ylopo AI handles text and voice follow-up, branded websites, buyer presentations, seller suite integrations, and ongoing coaching. The pricing page explicitly states 'No Long Term Contracts' and 'Monthly Marketing Budget Adjustments,' but actual monthly cost requires a demo call.
Agentology
Agentology
- −No vendor page reachable—pricing, features, and integrations unknown
Agentology's site was not accessible in the research bundle. No pricing, feature claims, or integration details are available.
Verdict
- If you run Ylopo's full lead-gen stack already, Ylopo AI Text + Voice is bundled—no standalone ISA decision required.
- If you want standalone ISA with transparent pricing, none of the five vendors in this research cycle publish it. You'll need to contact each vendor directly.
- If you need cost-per-qualified-lead estimates before signing, request case studies or benchmark data during the demo call—vendor pricing pages do not include CPL ranges.
What we'd skip
- Any vendor that requires a demo call before disclosing base monthly cost—if budget transparency matters, start elsewhere.
- Bundled ISA-plus-lead-gen platforms if you already have a CRM and IDX site you like—you'll pay for redundant tools.
- Vendors with no accessible pricing or feature pages—lack of published information often correlates with custom-quote pricing that scales unpredictably.
