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

    Mailbutler vs Overloop AI

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    Mailbutler

    Mailbutler is an email extension for Gmail, Apple Mail and Outlook that adds email tracking, message templates, mail merge, smart follow-ups, AI compose, signatures, notes and tasks and team collaboration. Plans are per user per month billed in USD or EUR, with a free Starter plan.

    Starting atCustom0
    Tool B

    Overloop AI

    Sales prospecting platform that finds verified B2B contacts and runs personalized email and social outreach campaigns. Includes a 450M+ B2B contact database, an email finder and verifier, and AI-written campaigns and follow-ups.

    Starting at$69/month
    02Line by line

    Pricing comparison.

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

    03Capabilities

    Feature comparison.

    FeatureMailbutlerOverloop AI
    Email tracking with real-time notifications
    Message templates
    Mail merge
    Smart follow-ups
    Smart compose and smart improve (AI)
    Smart timing
    Email assignments and collaborator status
    Notes and tasks
    Automations
    Signature marketing
    AI-powered campaigns
    450M+ prospects database
    Verified Email Addresses
    Smart multichannel campaigns (Email + social)
    AI-powered Outreach Followups
    Email Finder & Verifier
    Chrome Extension for LinkedIn
    Conversations Inbox
    Email Warmup
    REST API
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    Mailbutler

    GmailApple MailOutlook

    Overloop AI

    HubSpotSalesforcePipedriveZapierSlackCalendlyGmailOutlook
    05Keep exploring

    Explore more.

    Best Mailbutler alternativesBest Overloop AI alternatives
    Instantly vs MailbutlerMailbutler vs SmartleadLemlist vs MailbutlerOutreach vs Overloop AIOverloop AI vs SalesloftGong vs Overloop AI
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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.