AI Email Writer | HubSpot vs Mailr

HubSpot's AI Email Writer is an email assistant built into Marketing Hub that drafts marketing campaigns and sales outreach from text prompts. You pick an email template, use slash and highlight commands to generate or rewrite copy, then send and track everything from the same HubSpot CRM dashboard.

Standalone AI writing tools stop at the draft. HubSpot ties generation to your contact database, so personalization tokens pull from CRM records and campaign analytics log open rates and lead submissions automatically. That integration is the trade-off: you get less flexibility than a general-purpose writer, but you skip exporting copy into a separate ESP.

Marketing teams use it for blast campaigns and segmented messaging. Sales reps use it to generate cold outreach drafts at scale and customize tone, length, and spelling with inline commands. The free tier covers basic AI writing with no credit card; Starter, Professional, and Enterprise Marketing Hub plans unlock advanced automation and analytics.

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.