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21X (formerly Structurely) alternatives
Lead follow-up21X (formerly Structurely): Conversational AI that qualifies and follows up with leads over voice, SMS and email; Structurely rebranded as 21X in October 2026. It starts at Platform fee by quote + usage (verified on vendor pricing page, checked 2026-11-11). Here are 2 alternatives we track, with the same dated pricing and fit verdicts.
21X (formerly Structurely) vs its alternatives at a glance
| Tool | Starting price | Pricing model | Free plan / trial | Solo agents |
|---|---|---|---|---|
| 21X (formerly Structurely)current | Platform fee by quote + usage | Platform fee (by quote) + usage | None listed in the pricing we track | Platform fee is by quote plus usage, so ask for the platform fee before committing; usage rates scale with volume. |
 Ylopo | Custom (quote via ROI calculator or demo) | Quote-based (contact sales) | None listed in the pricing we track | Custom quote priced by database size and market, not seats, and it runs on paid ad spend, so it suits producing agents. |
 RealtorsRobot | Pricing on request · Free trial | Quote-based (contact sales) | None listed in the pricing we track | No published USD prices, and some tiers need at least 5 users, so it's hard to justify for one agent. |
The alternatives, one by one
Ylopo
Lead follow-upDigital marketing, AI text/voice and lead conversion for teams.
Ylopo: pricing & fit
Pricing: Solo / Growing Team / Complete: Custom (quote via ROI calculator or demo) (checked 2026-11-11)
Compared with 21X (formerly Structurely): 21X (formerly Structurely) publishes its pricing (from Platform fee by quote + usage); Ylopo is quote-based (Custom (quote via ROI calculator or demo)), so we can't say which is cheaper without a quote.
| Solo Agents | Custom quote priced by database size and market, not seats, and it runs on paid ad spend, so it suits producing agents. |
|---|---|
| Real Estate Teams | Main audience: Growing Team and Complete packages for lead-conversion teams. |
| Brokerages | Quote-based; pricing scales with database size and market rather than agent count. |
RealtorsRobot
Lead follow-upReal estate lead management and sales automation platform.
RealtorsRobot: pricing & fit
Pricing: Plans: Pricing on request (checked 2026-11-11)
Compared with 21X (formerly Structurely): 21X (formerly Structurely) publishes its pricing (from Platform fee by quote + usage); RealtorsRobot is quote-based (Pricing on request · Free trial), so we can't say which is cheaper without a quote.
| Solo Agents | No published USD prices, and some tiers need at least 5 users, so it's hard to justify for one agent. |
|---|---|
| Real Estate Teams | Built around multi-user lead management; ask for the 5-user minimum price before a demo. |
| Brokerages | Possible fit for team-based offices; pricing is on request only. |
21X (formerly Structurely) vs RealtorsRobot: full comparison →
How to choose a lead follow-up tool
Lead follow-up tools use AI text, voice or email to respond to new leads, qualify them and hand warm conversations to an agent, often on top of an existing CRM.
Buying checklist
- TCPA consent rules for automated calls and texts.
- Usage-based versus flat pricing, and whether ad spend is required.
- Which CRM it plugs into and how hand-offs work.
How we check prices
Prices were checked on each vendor's own pricing page and are dated. Rankings follow a published score: price value, features for agents, independent user feedback, terms and refund policy, and ease of sign-up or a free trial each get a 1–10 score, and the overall score is the plain average of the criteria we could score (for example 7.4/10). Hidden pricing or too few independent reviews show as Not enough info rather than a low score, and a tool needs at least 3 scored criteria to be ranked, with ties broken by starting price. Payment, affiliate links and sponsorships never change a score, ranking or verdict. If a vendor hides its pricing we say so rather than guess. Full method: agentaicompare.com/how-we-score/.
Frequently asked questions
What are the best 21X (formerly Structurely) alternatives?
We track 2: Ylopo (Custom (quote via ROI calculator or demo)); RealtorsRobot (Pricing on request · Free trial). Which is best depends on your business: see the solo, team and brokerage verdicts above.
Is there a free alternative to 21X (formerly Structurely)?
None of the alternatives we track list a free plan or trial on their pricing pages.
Why consider an alternative to 21X (formerly Structurely)?
Price or fit. 21X (formerly Structurely) starts at Platform fee by quote + usage; our solo-agent verdict is "Platform fee is by quote plus usage, so ask for the platform fee before committing; usage rates scale with volume."
How current is this list?
Pricing for each tool was checked on its vendor pricing page; the most recent check on this page was 2026-11-11.