Instantly
AI EmailPaid
Cold email platform with unlimited sending accounts, built-in warmup, 450M lead database, AI reply handling, and flat-fee pricing that does not scale per user.
0 upvotesintermediate
Compare Instantly vs Shortwave
Both tools in AI Email
Shortwave
AI EmailPaid
AI-native Gmail client built by former Google Inbox engineers, with thread bundles, natural-language search, AI summaries, and team shared inboxes.
0 upvotesbeginner
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Pricing
Pricing Comparison
Instantly
Growth$37/mo
Billed annually, 5,000 emails/mo, 1,000 contacts, unlimited inboxes and warmup
Hypergrowth$97/mo
25,000 emails/mo, A/B testing, Unibox, advanced analytics
Light Speed$358/mo
500,000 emails/mo, SISR dedicated servers, agency features
Lead Finder add-on from $47/mo—
Shortwave
Business$24/mo
Billed annually ($30 monthly), full AI features, team inboxes, 5-year AI search history
Premier$36/mo
Billed annually, advanced AI intelligence, unlimited search history, 10 AI filters
Max$120/mo
Billed annually, highest AI usage, custom enterprise features
Features
Feature Comparison
Instantly
Unlimited Email AccountsUnlimited WarmupFlat-fee Team PricingAI Reply DetectionAI Email CopyUnibox Unified InboxA/B TestingSequence BuilderCondition-based Logic450M Lead DatabaseCampaign AnalyticsBounce DetectionAuto-pause on ReplyCRM Add-onHubSpot IntegrationSalesforce IntegrationAgency Multi-workspaceSISR Deliverability Infrastructure
Shortwave
AI Natural-language SearchThread BundlesPriority InboxAI Thread SummariesAI Reply DraftingShared Team InboxesTeam CommentsTeam Read StatusesKeyboard ShortcutsEmail PinningEmail SnoozingScheduled SendMarkdown SupportPresence IndicatorsTasklet IntegrationAI Email FiltersFull History SearchCustom Bundling Rules
Fit
Best For & Not For
Instantly
✅ Best For
✅Sales teams of 5 or more people where per-seat tools like lemlist or Apollo would cost 5 to 10 times as much for the same volume
✅Agencies managing outbound for multiple clients, because unlimited accounts means no per-client inbox fees
✅Solo founders and early-stage startups who need to reach 1,000 prospects a month without paying for expensive sequencer seats
✅B2B companies whose main outbound channel is email and who want unlimited sending infrastructure without building it themselves
❌ Not For
❌Teams needing native LinkedIn automation, calls, or true multichannel sequences, which require lemlist or Reply.io
❌Marketers wanting a newsletter or broadcast email tool, since Instantly is built exclusively for cold outreach and 1-to-1 sequences
❌Users who expect the full stack at the Growth entry price, since A/B testing, Unibox, and CRM all require Hypergrowth or higher
❌Anyone unwilling to manage inbox infrastructure, because you still need to buy domains and set up Google Workspace or Outlook accounts separately
Shortwave
✅ Best For
✅Gmail-first professionals drowning in threads who want AI search that answers questions instead of returning links
✅Small teams managing a shared support@ or hello@ inbox who do not want to pay for a full helpdesk platform
✅Google Workspace companies that want a modern, Inbox-by-Gmail experience with AI baked in from day one
✅Founders and operators who process high email volume and need AI summaries to read long threads in seconds
❌ Not For
❌Outlook and Microsoft 365 users, since Shortwave is Gmail-only with no cross-platform support
❌Teams that need autonomous AI handling of email rather than a faster client to process it themselves
❌Individuals wanting a free long-term plan, since the free tier was removed and every plan now starts with a 14-day trial
❌Solo users on tight budgets where the Business plan at $24 per month per seat is hard to justify for just inbox speed
Availability
Platform & Accessibility
Instantly
web-basedapi
Shortwave
web-basedmobiledesktop
Use & Audience
Tasks & Who It's For
Integrations
Integrations
Instantly
CRM
HubSpotSalesforcePipedrive
Automation
Zapier
Communication
Slack
Other
Clay
Shortwave
Communication
Gmail
Other
Google CalendarGoogle Workspace
Automation
TaskletZapier
Use Cases
Real-world Use Cases
Instantly
1
A 5-person SDR team at a logistics startup switches from lemlist to Instantly, cuts their monthly tool cost from $395 to $97, and uses the savings to buy a dedicated data plan that doubles their outreach volume.2
Rohan, a solo founder, connects 10 sending accounts through Instantly's warmup network and books 15 demos in his first month of cold email without a single email going to spam.3
An agency managing 8 client cold email programs uses multi-workspace to isolate each client's campaigns, tracks performance across accounts from one dashboard, and bills clients at a margin on the flat fee.Shortwave
1
Kavya, a startup COO, types 'what did the investor ask about our runway in the last two months?' into AI Search and gets a summary of three threads in seconds instead of scrolling for 10 minutes.2
A 5-person SaaS team sets up a shared hello@ inbox in Shortwave, assigns threads with one click, and resolves customer inquiries 40 percent faster without buying a helpdesk tool.3
Rajan, a consultant with 200 emails a day, uses thread summaries to scan 15 long client conversations in under 5 minutes each morning, cutting his inbox session from 2 hours to 45 minutes.Keep Exploring