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Side-by-side record

Lob vs. SDRx

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 Lob at $260.

Full comparison

Lobfrom $260 per month
SDRxfrom $40 per month
Audyense Score32AS*Low50AS*Low
PositioningLob is a direct mail platform designed to simplify and speed up sending physical mail for businesses.AI SDR for account-based outreach, research, and follow-up.
Free tierYesNo
DeploymentCloud / SaaSCloud / SaaS
Best fitSMB, Mid-market, EnterpriseStartup, SMB, Mid-market
Pricing plans
  • Free$109
  • BasicCustom pricing
  • Growth$550
  • BusinessCustom pricing
    —
Advanced campaign toolsYesDocumented in the sourced profile.—
Award-winning APIsYesDocumented in the sourced profile.—
Postal IQ routingYesDocumented in the sourced profile.—
Nationwide print delivery networkYesDocumented in the sourced profile.—
Data-driven mail personalizationYesDocumented in the sourced profile.—
Industry-leading compliance standardsYesDocumented in the sourced profile.—
Marketing automationYesDocumented in the sourced profile.—
Postal Mail OutreachYesDocumented in the sourced profile.—
AI-built ICP lists from a large prospecting database—Yes
LinkedIn outreach automation—Yes
Autonomous end-to-end outbound execution—Yes
Hyper-personalized 1:1 email generation using CRM/LinkedIn data—Yes
Adaptive multi-step follow-up sequencing—Yes
Automated account and competitor research—Yes
Email deliverability management (warmup, DMARC/DKIM, inbox rotation)—Yes
Integrations verified4+—
Aggregate rating— · No reviews yet5.0 · 6 reviews
Integrations
MakeLinkedInAPIWebhooks
CRM syncEmailLinkedIn
Security & compliance——
Pros
  • Documented capability: Advanced campaign tools
  • Documented capability: Award-winning APIs
  • Profile names a concrete ICP: Lob is recommended for teams managing complex direct mail at scale who need fast, predictable delivery with advanced routing and nationwide printing.
  • Public profile names Make, LinkedIn, API as connected workflow surfaces
  • Deep account research focus.
  • Personalized outreach over multiple channels.
  • Transparent product positioning around AI SDR workflows.
Cons
  • 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
  • Named integrations should be validated against the team's exact plan and workflow
  • Reported outcomes and vendor claims should be validated with the buyer's own data
  • Review volume is still early.
  • Not positioned as a broad GTM platform.
Visit Lob ↗Visit SDRx ↗

Editorial read of this comparison

The table summarizes structured facts; this section explains what the differences mean for a real buying decision.

Where each tool fits, and where it may not

Lob

Lob is a direct mail platform designed to simplify and speed up sending physical mail for businesses. It fits in the marketing automation and customer outreach category. What sets Lob apart is its advanced Postal IQ routing, nationwide print network, and easy API integration, ensuring fast, predictable, and secure mail delivery. Lob shines for companies running high-volume direct mail campaigns, especially those needing personalized, data-driven outreach. You can see results within a few days, as mail printing and sending happen quickly with automated workflows. This makes Lob ideal for timely compliance, customer retention, and large marketing efforts. In the go-to-market stack, Lob integrates well with CRMs and outreach tools to automate campaigns and track mail delivery from start to finish. However, it’s not a digital-only communication tool and doesn’t replace email or digital ads; it focuses solely on physical direct mail execution and fulfillment. ▶ Video Review Coming Soon We're working on creating a detailed video review for Lob .

A particularly good fit for: recommended for teams managing complex direct mail at scale who need fast, predictable delivery with advanced routing and nationwide printing. Trusted by 12,000 SMBs, Mid-market, Enterprise teams with a defined revenue workflow postal mail outreach

May be a poor fit if: Teams looking for a single-purpose tool outside its documented go-to-market focus Teams that need unlimited usage without plan or credit limits

SDRx

SDRx is an AI SDR built for B2B sales teams that need deep account research and personalized multi-channel outreach at scale. It focuses on target lists, message personalization, and iterative follow-up over weeks rather than one-shot blasts.

A particularly good fit for: Sales teams running account-based outbound. Founders and growth teams that need research-heavy prospecting.

May be a poor fit if: Teams looking for a generic CRM. Very small teams that only need a simple send engine.

Pricing and plan structure

Lob: Published starting price $260 per month

  • Free$109 per month
  • BasicCustom pricing
  • Growth$550 quote
  • BusinessCustom pricing

SDRx: Published starting price $40 per month

Audyense does not have a verified public tier breakdown for this record. Confirm the current quote, seat model, usage limits, and contract terms with the vendor.

Capabilities worth validating

  • Lob: Advanced campaign tools, Award-winning APIs, Postal IQ routing, Nationwide print delivery network, Data-driven mail personalization Integrations include Make, LinkedIn, API, Webhooks.
  • SDRx: AI-built ICP lists from a large prospecting database, LinkedIn outreach automation, Autonomous end-to-end outbound execution, Hyper-personalized 1:1 email generation using CRM/LinkedIn data, Adaptive multi-step follow-up sequencing Integrations include CRM sync, Email, LinkedIn.

Questions to answer before switching

  • Does Lob's selected plan include the features and limits we need?
  • Does SDRx's selected plan include the features and limits we need?
  • Does the exact integration path for Make, LinkedIn, API support the sync direction, permissions, and volume we need?
  • Is a hosted-only deployment acceptable for the team and customers who will use this system?

How to evaluate this shortlist

A useful comparison turns the differences between Sales & CRM tools into a concrete test. Use these steps to avoid choosing from a feature table or the lowest headline price alone.

  1. Start with a representative Sales & CRM workflow, not a feature checklist. Define who will use it, what data goes in, and what outcome the team needs.
  2. Test the complete path through Make, LinkedIn, API: permissions, sync direction, failure handling, and volume limits often matter more than the integration name.
  3. Compare the cost of the real scenario, including users, usage, storage, support, and contract requirements. The entry price alone does not measure adoption cost.
  4. Before switching, list the evidence gaps, request a demo of the critical workflow, and confirm security, data residency, export, and support with each vendor.

Structured signals help narrow the shortlist, but a trial with a real workflow is still the best way to validate the decision.

Research basis

Last checked: 2026-08-25. Pricing, integrations, feature support, and review signals can change, so treat this as a research snapshot and verify the final decision with the vendor.

Sources consulted: Lob product site, ColdIQ profile, Vendor website; SDRx product site, Product Hunt, SDRx