How do their growth rates compare?

21X (formerly Structurely) has a month-over-month growth rate of +367.9%; Zappx has -69.5%.

How does pricing compare?

21X (formerly Structurely): Contact for Pricing. Platform fee plus usage-based pricing. No seat licences; you pay for the platform and for activity metered in tokens. Voice from about $0.07 per minute (BYOC), SMS from about $0.02 per message, AI email from about $0.02 per email, with volume discounts on higher tiers. Three plans — Small Team, Large Team and Enterprise / Build Your Own — are quoted via sales; a demo AI call is offered before you commit. Zappx: Contact for Pricing. Contact for pricing. No public price list is advertised; the path in is booking a demo with the sales team.

What are alternatives to 21X (formerly Structurely) and Zappx?

Other tools in related categories include Dialpad, Outreach, JustCall, Trellus, Orum.

21X (formerly Structurely) vs Zappx — Traffic (13.45K vs 571), Pricing & Verdict

Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	21X (formerly Structurely)	Zappx
Official Domain	structurely.com	tryzappx.com
Pricing Model	Contact for Pricing	Contact for Pricing
Monthly Visits	13.45K (13,453)	571 (571)
MoM Traffic Delta	+10.58K (+367.9%)	-1.3K (-69.5%)
Primary Market & Share	🇺🇸 United States (70.7%)	🇺🇸 United States (100%)
Direct Visits / mo	5.95K	224
User Rating	4.3	4
Supported Platforms	Website	Website

21X (formerly Structurely)

AI agents that answer, qualify, book and follow up across every channel

Inbound and outbound AI voice

AI agents handle inbound calls and run proactive outbound campaigns across voice, SMS, email and chat, 24/7, without adding headcount.

Multi-channel conversation routing

Agents qualify, answer, transfer, schedule, escalate and route each conversation based on intent, context and your business rules.

Action taking, not just talking

Book appointments, schedule callbacks, execute live transfers to human reps, trigger workflows and capture documents and signatures automatically.

Automatic dispositions and CRM sync

Conversations are dispositioned automatically, CRM records are updated, and customer data syncs back into your existing tools and workflows.

Strengths & Pros

+Handles voice, SMS, RCS, email and chat in one platform rather than separate point tools
+Automatic dispositions and CRM sync keep AI conversations inside existing reporting
+No per-seat licensing; cost tracks actual conversation volume
+Prebuilt industry agents for mortgage, real estate, insurance, home services and more