Opnbx.ai vs Ellie

Opnbx.ai is a B2B sales intelligence platform built around what the company calls Precision Prospecting. It gives sales and marketing teams a unified data layer to spot which accounts in their market are worth pursuing right now. The product focuses on ICP validation, intelligent segmentation, and account-level research rather than generic firmographic lists. Teams log in through app.opnbx.ai after booking a demo through the marketing site.

Most intent data vendors sell broad market signals that every competitor can buy. Opnbx.ai tries to correlate signals from your own closed-won deals with live account activity, then scores and prioritizes companies against that custom model. The homepage positions it as a replacement for stitching together a Franken-Stack of tools like 6sense, Clay, Bombora, and ZoomInfo. That trade-off is narrower fit modeling in one platform instead of buying the same commoditized feeds everyone else has.

It targets sales leaders, RevOps teams, and individual reps at B2B companies running outbound or pipeline development motions. Integrations listed on the site include Outreach, HubSpot, Salesforce, Salesloft, and Apollo.io. Customer testimonials on the homepage come from teams at Datavolo, Vial, Descope, and Pangia who cite faster account research and higher conversion rates after onboarding.

Ellie drafts email replies in your voice inside Gmail or Outlook before you hit send. Connect your inbox and wake up to responses already sitting in your Drafts folder, written in the thread context and matched to your tone. You review every message before it goes out; Ellie never sends on its own.

Most email assistants generate generic text you still have to rewrite. Ellie trains on up to 200 of your sent emails on the Casual plan (1,000 on Business) and pulls from a knowledge base you upload so replies cite your actual policies and CRM data. Business and Professional plans add background auto-drafting and auto-categorization, while Casual users trigger replies manually through a browser extension in Gmail, Outlook web, or Fastmail.

Support teams, founders, and sales reps drowning in inbox volume use Ellie to clear reply backlogs. Plans range from $19 per month for 25 daily replies to $79 per month for unlimited replies and up to 3 connected accounts per user. A 7-day free trial requires no credit card, and Microsoft 365 customers can buy through AppSource.