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Shortwave vs Success.ai

ShortwaveSuccess.ai

Bottom line: Shortwave for gmail and Google Workspace power users; Success.ai for sDR teams.

ShortwaveShortwave

AI email client for Gmail that helps you reach inbox zero faster with AI search, summaries, and drafting.

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Success.aiSuccess.ai

Cold email outreach platform with a large B2B lead database and AI writing

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Votes00
PricingFreemiumPaid
CategoryEmailEmail
Tags
emailai-emailgmail
cold emaillead databaseemail warmupoutreachsales automation
Best for
  • Gmail and Google Workspace power users
  • Professionals with high email volume
  • Sales, recruiting, and customer-facing teams
  • SDR teams
  • Lead-gen agencies
  • B2B startups
Pros
  • Powerful, genuinely useful AI search and summaries
  • Fast, keyboard-driven interface that feels like a modern successor to Google Inbox
  • Strong inbox organization with bundles, splits, and AI filters
  • Native desktop, iOS, and Android apps
  • Team collaboration features like shared threads and assignees
  • Bundles lead data and sending
  • AI email writing built in
  • Automated inbox warmup
  • Unified inbox for replies
  • High or unlimited volume messaging
Cons
  • Gmail and Google Workspace only, with no Outlook, IMAP, or Exchange support
  • Paid tiers are expensive compared with most email clients
  • Daily AI usage quotas can be hit by heavy users on lower tiers
  • No permanent full-featured free plan beyond the trial and basic use
  • Learning curve for its many organization features
  • Unlimited claims have real limits
  • No permanent free plan
  • Deliverability depends on user behavior
  • Data accuracy varies by segment
  • Crowded, competitive category

Comparison generated from each tool's listing. Add or remove tools above to change it.