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    Tool comparison · Head to headUpdated 9/4/2026

    GMass vs Right Inbox

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    GMass

    Gmail-based mass email and mail merge platform with unlimited emails, campaigns, and contacts directly inside Gmail.

    Starting at$29.95/month
    Tool B

    Right Inbox

    Right Inbox is a Gmail extension for Chrome, Safari and Firefox that adds email tracking, mail merge, email sequences, recurring emails, reminders, templates, send later and signatures inside Gmail. Plans are per user per month with a free Limited tier.

    Starting atCustom0
    02Line by line

    Pricing comparison.

    Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.

    03Capabilities

    Feature comparison.

    FeatureGMassRight Inbox
    Works inside Gmail
    Unlimited emails, contacts, and campaigns
    Mail merge personalization
    Free email verification
    Automated follow-up sequences
    A/B testing
    Spam Solver deliverability tool
    Custom tracking links
    Inbox rotation
    API and Zapier access
    Email Tracking
    Mail Merge
    Email Sequences
    CRM Integration
    Recurring Emails
    Reminders
    Private Notes
    Templates
    Send Later
    Signatures
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    GMass

    GmailGoogle SheetsZapierGoogle Workspace

    Right Inbox

    GmailChromeSafariFirefox
    05Keep exploring

    Explore more.

    Best GMass alternativesBest Right Inbox alternatives
    GMass vs InstantlyGMass vs SmartleadGMass vs LemlistInstantly vs Right InboxRight Inbox vs SmartleadLemlist vs Right Inbox
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    Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.