Instead of Boomerang
Boomerang alternatives
Boomerang helps organize email timing with scheduled delivery, snoozing, follow-up reminders, and Inbox Pause. Its Magic Live Calendar supports bookable schedules, suggested times, free/busy sharing, multiple calendars, and team scheduling with Zoom and Google Meet. Respondable provides real-time help with email effectiveness and tone. Open, reply, and click tracking, CRM synchronization, browser extensions, and iOS and Android apps broaden its email workflow. Boomerang offers a free plan, paid plans from $4.98/user/mo billed annually, and a 30-day trial.
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Mailbutler Smart Assistant
by Mailbutler Smart AssistantFree plan AndroidExtensioniPhone+4AI-assisted drafting across major email clients — Mailbutler adds keyword-based drafting and reply generation for Apple Mail, Gmail, and Outlook.
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Mailtrack
Free plan AndroidAPIExtension+4Email open and link tracking — Mailtrack focuses on pixel-based open status, real-time alerts, reports, and link tracking rather than Boomerang’s scheduling tools.
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Mixmax
Free plan APIExtensionLinux+3Sales teams running multistage outreach — Mixmax adds sequences, Salesforce workflow rules, CSV uploads, and calendar booking inside Gmail and Outlook.
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Relate Engage
Free plan MacWebWindowsB2B outbound sequencing with CRM — Relate Engage combines outbound sequences with CRM, deal conversion, personalization, sending controls, and detailed delivery statistics.
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Right Inbox
Free plan ExtensionLinuxMac+2Gmail productivity with CRM synchronization — Right Inbox adds mail merge, GIFs, templates, recurring email, and CRM synchronization alongside scheduling and inbox pause.
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Apollo
Free plan APIExtensionWeb - 9
Mailmeteor
Free plan AndroidAPIExtension+2 - 10
Intelliverse Email Tracker
Free plan ExtensionWebWindows - 11
EmailSavy
Free plan ExtensionWeb - 12
Mailproof
Free plan ExtensionWeb - 13
Mailalert
Free plan Extension - 14
MailTag
Free plan APIWeb - 15
MailTracker
Free plan ExtensionWeb - 16
OutMass
Free plan ExtensionWeb - 17
PitchTrack
Free plan ExtensionWeb - 18
HubSpot Meetings
Free plan AndroidiPhoneWeb - 19
Yesware
Free plan ExtensionMacWeb+1 - 20
SeeMail
Free plan ExtensionWeb - 21
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TrackMailBox
Free plan ExtensionWeb - 23
Instantly
Free trial AndroidAPIiPhone+1 - 24
An alternative may fit better if your priority is AI-written replies, sales sequences, CRM pipelines, or broader platform coverage. Boomerang’s Basic plan allows 10 message credits per month, while mobile access begins with the Personal plan. Compare the work you need to manage: composing messages, tracking outreach, coordinating meetings, or organizing prospects. Platform support, automation, reporting, integrations, and pricing can matter as much as scheduling and inbox controls when choosing a replacement.