cmass.io

What It Is

CMass is a marketing and sales outreach tool built around outbound email campaigns in Gmail. It offers a Chrome-based setup and combines mass emailing, follow-ups, open and click tracking, bounce suppression, one-click unsubscribe, and a built-in CRM. Its key differentiator is that the Pro and Team plans include Claude AI assistance, without requiring users to have a Claude.ai account, Anthropic account, or API key.

Core Features and Data

Based on the available information, CMass supports importing from Google Sheets and CSV, merge tags, multi-stage follow-ups, stage-based sending conditions, weekend skipping, desktop follow-up reminders, client report exports to PDF, plus CRM pipelines, records, and automatic association with email threads. It does not mention having its own external lead database; contact sources mainly depend on user imports and relationship history built through email interactions. Daily sending limits vary by plan: 50 emails on the Free plan, 500 on Pro, and 2,000 on Team.

Pricing and Trial

Pricing is straightforward: Free is permanently free; Pro is $29/month; Team is $49/month. Both Pro and Team offer a 7-day free trial with no credit card required. Annual billing includes 2 months free. Once the daily limit is reached, there are no overage charges; sending simply stops for the day and resumes the next day.

Pros and Cons

The main advantages are that the Free plan already includes CRM, tracking, bounce suppression, and one-click unsubscribe, making it easy to get started; the AI features are hosted by the platform, reducing setup complexity; and the Team plan includes up to 5 seats, a shared contact pool, relationship history, team-wide unsubscribe/bounce suppression, and team analytics, making it suitable for small teams that want to avoid duplicate outreach. The limitations are that the text does not indicate support for Outlook, SMTP, multiple mailboxes, or large-team scalability; payment methods, data storage regions, and security/compliance details are also not disclosed.

Who It’s For and Access from China

CMass is better suited to individual outreach, founders, sales representatives, and small teams of up to 5 people that need to share customer relationship history. Its accessibility from China cannot be determined from the provided text. Because it relies heavily on Gmail, Chrome, and Claude/Anthropic backend capabilities, actual usability may be affected by the network environment, availability of Google services, and cross-border payment conditions. Alternative products include GMass, Mailmeteor, Lemlist, Instantly, Apollo, and others.