Mailr vs Opnbx.ai

Mailr drafts and replies to email from a Chrome extension you open right in the browser. You type a short instruction describing what you want to say, pick one of more than 10 tones such as friendly, informal, or persuasive, and Mailr generates the full message in one click.

Compared with inbox-native assistants that plug into Gmail directly, Mailr stays a lightweight Chrome add-on focused on composing new mail and quick replies rather than auto-drafting every incoming thread. The free tier caps you at 2,000 words, while Premium raises that to 100,000 words per month with faster generation and early beta access.

Mailr suits professionals who live in Chrome and want help starting or finishing messages without switching tabs. The site notes Mailr was acquired by MailWiz, which now offers a separate Gmail-integrated product at mailwiz.app, but the Mailr extension and pricing page remain live on mailr-ai.com.

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.