RevenueFlow
    All tool comparisons
    Tool comparison · Head to headUpdated 9/4/2026

    Right Inbox vs SendFlock

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    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
    Tool B

    SendFlock

    Cold email software for agencies and lean lead gen teams that bundles email warmup, automated follow-up sequences, email rotation across unlimited mailboxes, a unified inbox and a simple CRM in one tool.

    Starting at$29/month
    02Line by line

    Pricing comparison.

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

    03Capabilities

    Feature comparison.

    FeatureRight InboxSendFlock
    Email Tracking
    Mail Merge
    Email Sequences
    CRM Integration
    Recurring Emails
    Reminders
    Private Notes
    Templates
    Send Later
    Signatures
    Unlimited Mailboxes
    Unlimited Email Warm Up
    Unified Inbox
    Follow Up Sequences
    A/B Testing
    Email Rotation
    Global Block List
    Workflow Automation
    Bounce detection
    CRM
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    Right Inbox

    GmailChromeSafariFirefox

    SendFlock

    GmailGsuiteOutlookZohoCustom SMTP/IMAPZapier
    05Keep exploring

    Explore more.

    Best Right Inbox alternativesBest SendFlock alternatives
    Instantly vs Right InboxRight Inbox vs SmartleadLemlist vs Right InboxInstantly vs SendFlockSendFlock vs SmartleadLemlist vs SendFlock
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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.