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SDRx vs. TheirStack

Built from each tool’s researched, reviewed record. Figures are checked against public pricing pages at research time — always confirm current pricing with the vendor before buying.

The short version

SDRx starts at $40 per seat, versus TheirStack at $109.

Full comparison

SDRxfrom $40 per month
TheirStackfrom $109 per month
Audyense Score50AS*Low31AS*Low
PositioningAI SDR for account-based outreach, research, and follow-up.TheirStack is a data tool designed for sales and marketing teams to find companies based on technology usage and hiring signals.
Free tierNoYes
DeploymentCloud / SaaSCloud / SaaS
Best fitStartup, SMB, Mid-marketSMB, Mid-market, Enterprise
Pricing plans
    —
  • Free$295
  • BasicCustom pricing
  • GrowthCustom pricing
  • EnterpriseCustom pricing
AI-built ICP lists from a large prospecting databaseYes—
LinkedIn outreach automationYes—
Autonomous end-to-end outbound executionYes—
Hyper-personalized 1:1 email generation using CRM/LinkedIn dataYes—
Adaptive multi-step follow-up sequencingYes—
Automated account and competitor researchYes—
Email deliverability management (warmup, DMARC/DKIM, inbox rotation)Yes—
Technology usage filters—YesDocumented in the sourced profile.
Hiring signals alerts—YesDocumented in the sourced profile.
Buying intent keywords—YesDocumented in the sourced profile.
Company details discovery—YesDocumented in the sourced profile.
Job postings analysis—YesDocumented in the sourced profile.
Data API access—YesDocumented in the sourced profile.
Lead generation—YesDocumented in the sourced profile.
Data enrichment—YesDocumented in the sourced profile.
Technology Lookup—YesDocumented in the sourced profile.
Customer Segmentation & Scoring—YesDocumented in the sourced profile.
Integrations verified—2+
Aggregate rating5.0 · 6 reviews— · No reviews yet
Integrations
CRM syncEmailLinkedIn
LinkedInAPI
Security & compliance——
Pros
  • Deep account research focus.
  • Personalized outreach over multiple channels.
  • Transparent product positioning around AI SDR workflows.
  • Documented capability: Technology usage filters
  • Documented capability: Hiring signals alerts
  • Profile names a concrete ICP: TheirStack is perfect for sales and marketing teams who want to find companies using specific technologies or hiring for key roles. It helps you disco
  • Public profile names LinkedIn, API as connected workflow surfaces
Cons
  • Review volume is still early.
  • Not positioned as a broad GTM platform.
  • Some pricing or higher-tier terms are not publicly itemized
  • Fit is strongest for the stated SMBs, Mid-market, Enterprise audience rather than every team
  • The public profile names few integrations, so required connections need direct verification
  • Reported outcomes and vendor claims should be validated with the buyer's own data
Visit SDRx ↗Visit TheirStack ↗