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21X (formerly Structurely)
Lead follow-upLead follow-up · Conversational AI that qualifies and follows up with leads over voice, SMS and email; Structurely rebranded as 21X in October 2026.
How we checked this tool: desk research: the vendor's own pricing, terms and refund pages, plus public user reviews. We have not tested it hands-on. Method
Our score
No top pick in Lead follow-up yet, listed in score order without ranks · Based on 4 of 5 criteria · scored 2026-10-31 · How we score. Payment, affiliates and sponsorships never change a score.
Pricing status:Verified on vendor pricing page
| Price value | 5/10 | Published team and usage pricing, but costs scale with usage | |
|---|---|---|---|
| Features for agents | 8/10 | AI ISA across voice, SMS and email with CRM updates | |
| User feedback | Not enough info | Not enough independent reviews to judge (1 G2 review) | |
| Terms & refund policy | 6/10 | Published terms of service found; no separate refund page found | |
| Ease of sign-up / free trial | 5/10 | Demo-led, sales-assisted onboarding |
Pricing Verified on vendor pricing page
Agent builder, inbound/outbound voice, SMS & email, live transfers, appointment scheduling; 1.5 hours monthly support
Adds multiple teams, advanced routing, custom integrations & webhooks, volume-based usage discounts; 5 hours monthly support
Usage metered in tokens
Usage metered in tokens
Usage metered in tokens
5 price points · checked 2026-11-11 on the vendor's pricing page
Source: https://www.21xai.com/pricing
Best for
Verdict by business type
| Solo Agents | Platform fee is by quote plus usage, so ask for the platform fee before committing; usage rates scale with volume. |
|---|---|
| Real Estate Teams | Fit for lead-heavy teams; Large Team adds multiple teams and routing. |
| Brokerages | Fit; Enterprise adds custom SLAs, SSO and white-label options. |
Compliance notes
Read compliance notes
Automated calls/texts are subject to TCPA consent rules; confirm consent capture and opt-out handling.
Integrations
Integrations (1)
- Follow Up Boss — source (checked 2026-10-16)
Alternatives
Same-category alternatives (2)
21X (formerly Structurely) alternatives
Ylopo · Lead follow-up · from Custom (quote via ROI calculator or demo) · 21X (formerly Structurely) vs Ylopo
RealtorsRobot · Lead follow-up · from Pricing on request · Free trial · 21X (formerly Structurely) vs RealtorsRobot
21X (formerly Structurely) FAQ
How much does 21X (formerly Structurely) cost?
21X (formerly Structurely) starts at Platform fee by quote + usage on the vendor's pricing page (checked 2026-11-11).
Does 21X (formerly Structurely) have a free plan or trial?
No free plan or trial is listed in the pricing we track.
What are some 21X (formerly Structurely) alternatives?
We track Ylopo (Custom (quote via ROI calculator or demo)); RealtorsRobot (Pricing on request · Free trial).