Quick answer
If you are selling without an agent and the real problem is buyer calls, repetitive questions, scattered messages, and showing requests, Sellable is the best-fit app in this comparison. It is built as a listing desk for FSBO sellers: buyer call coverage, buyer text replies on supported plans, lead organization, listing-copy help, and viewing coordination.
Vocus AI, PushZero, and AiScriba are credible alternatives when you want a broader AI receptionist for a real estate business. Fizzbo is closer to a FSBO marketplace with chat and calendar features. Zillow helps buyers discover a FSBO listing where direct posting is available, but Zillow says the owner still handles the sale workflow.
Methodology and official-source review: July 22, 2026. We compared the job each product says it performs, who it is built for, and the operational work it leaves with the seller. Features can change, so check the linked product pages.
Side-by-side comparison
| Product | Best fit | Calls | Texts or chat | Showing workflow | Main limitation for this use case |
|---|---|---|---|---|---|
| Sellable | FSBO sellers who want a listing-specific response desk | Buyer call coverage | Buyer text replies on supported plans | Coordinates viewing requests with the seller | Does not create MLS or portal distribution |
| Vocus AI | Real estate teams, leasing, and property management | AI receptionist | Follow-up is centered on its call workflow | Sends callers to calendar booking links | Broader real estate receptionist rather than a FSBO-specific workflow |
| PushZero | Real estate businesses wanting calls and texts handled | AI front desk | Calls and texts | Books showing appointments | General business front desk with a real estate configuration |
| AiScriba | Agents and brokerages needing property Q&A and routing | AI phone secretary | Follow-up texts | Books against connected calendars | Agent and brokerage orientation, with broader team features |
| Fizzbo | Sellers wanting FSBO marketplace chat and scheduling | Not positioned as an AI call desk | In-app chat | Built-in calendar in its app listing | Marketplace workflow rather than phone coverage |
| Zillow FSBO | Listing discovery where direct FSBO posting is supported | No dedicated seller call desk | Buyer contact around the listing | Seller remains responsible | Distribution does not remove the inquiry workload |
1. Sellable: best focused buyer-response desk for FSBO
Sellable's product overview (opens in a new tab) describes an AI listing desk for homeowners and solo listing agents. Its verified scope includes answering buyer calls, replying to buyer texts on supported plans, organizing lead activity, helping with listing copy, and coordinating viewing requests.
That scope maps directly to the seller who says, “I have the listing, but I cannot spend all day answering tire kickers.” Sellable is not trying to replace every tool in the sale. It gives the active listing a response layer and keeps the resulting buyer activity in one place.
The limits are equally important. Sellable is not a brokerage, MLS listing service, portal, contract generator, disclosure service, or appraisal product. It does not promise that a buyer is qualified or that a property will sell. You set consistent screening requirements and make the decisions; the software handles response and organization. Current coverage and plan limits are on Sellable's pricing page (opens in a new tab).
Choose Sellable when: you are an individual seller and the pain is the ongoing buyer-response workload around one or more active homes.
2. Vocus AI: best voice-first receptionist for broader real estate operations
Vocus AI (opens in a new tab) says its receptionist answers calls, uses uploaded property and policy knowledge, qualifies intent, sends clients to calendar booking links, and leaves transcripts and summaries. The official site focuses on leasing, property management, and real estate front-desk use cases.
Vocus is attractive if you want a configurable voice receptionist across a portfolio or business. A FSBO seller should compare the setup burden and whether the product's leasing and team orientation matches a one-home sale.
Choose Vocus when: voice coverage and a configurable property knowledge base matter more than a FSBO-specific dashboard.
3. PushZero: best general AI front desk with real estate call and text handling
PushZero's real estate page (opens in a new tab) says the product answers calls and texts, captures buyer and seller leads, knows listing and availability information supplied by the customer, asks qualification questions, and books showing appointments. It can use an existing forwarded number or a dedicated line.
This is a close functional alternative for missed calls. The distinction is positioning: PushZero is a multi-industry AI front desk with a real estate configuration, while Sellable is organized around listings and FSBO or solo-agent workflows.
Choose PushZero when: you want a broader front-desk product that can serve real estate alongside other business communication needs.
4. AiScriba: best for agent and brokerage routing requirements
AiScriba's real estate product (opens in a new tab) describes a phone secretary that answers property questions, collects buyer details, schedules showings, sends follow-up texts, manages open-house inquiries, and supports multi-agent routing on its team-oriented plans.
Those features make more sense for an agent or brokerage with listing assignments and several calendars than for many one-time sellers. A FSBO seller can still evaluate it, but should ask whether the agent-focused setup creates unnecessary complexity.
Choose AiScriba when: multi-agent routing, property Q&A, and brokerage-oriented workflows are requirements.
5. Fizzbo and Zillow: useful discovery layers, not substitutes for call coverage
The Fizzbo app listing (opens in a new tab) presents an owner-focused home marketplace with direct buyer and seller interaction. It can be useful if you want the marketplace, chat, and scheduling experience to live together. Confirm current availability and adoption in your target market before relying on it as the main source of buyer demand.
Zillow's official FSBO page (opens in a new tab) explains that an owner handles pricing, marketing, showings, negotiations, and paperwork. In other words, listing distribution can create inquiries without solving the work of answering and organizing them.
These products belong on the discovery side of a stack. Sellable, Vocus, PushZero, or AiScriba belong on the response side.
A practical setup for screening and showings
- Publish accurate property details through a legitimate channel available in your market.
- Use one dedicated response workflow instead of spreading buyers across personal calls, texts, email, and social messages.
- Give every buyer the same factual answers and the same objective screening steps.
- Ask for the information you need before committing time to a private showing. The FSBO buyer-screening guide provides a practical checklist.
- Keep the seller in control of final showing approval, sensitive information, negotiation, and transaction decisions.
- Review call and message records so inaccurate answers can be corrected quickly.
Questions to ask during a product demo
- Can it use facts for one exact property rather than generic business FAQs?
- What happens when the system does not know an answer?
- Does it handle calls, texts, or both on the plan being quoted?
- Does it book directly, request a time, or simply send a calendar link?
- Can the seller approve a showing before it is confirmed?
- Where are buyer identity, financing status, notes, and consent records stored?
- Can you export the lead history and cancel without losing access to it?
- What does the product explicitly refuse to answer about legal, pricing, disclosure, and negotiation topics?
Bottom line
For a homeowner with an active FSBO listing, Sellable is the strongest fit because it combines buyer response with a listing-centered lead and showing workflow. Vocus AI, PushZero, and AiScriba are stronger candidates when the buyer is really an agent, property manager, or team shopping for a broader receptionist. Fizzbo and Zillow can help with discovery or in-app interaction, but they do not replace a dedicated response desk.
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