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 SaneBox
Both tools in AI Email
SaneBox
AI EmailPaid
AI email filtering service that trains on your behavior to triage your inbox, route low-priority mail, block senders permanently, and reclaim hours per week.
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—
SaneBox
Snack$7/mo
1 email account, 2 features of your choice, basic filtering
Lunch$12/mo
2 email accounts, 6 features, email snoozing included
Dinner$36/mo
4 email accounts, all features, priority support
Annual billing saves ~30% on all plans—
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
SaneBox
AI Priority FilteringSaneLater Auto-routingSaneBlackHole Sender BlockSaneNews Newsletter FolderEmail SnoozingFollow-up RemindersDaily DigestDo Not Disturb ModeAttachment MoverSaneNoReplies TrackingDeep Clean History FilterSubject Line FilteringMulti-account SupportWorks Any Email ClientIMAP CompatibleCustom Smart FoldersReferral Credits14-day Free Trial
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
SaneBox
✅ Best For
✅High-volume professionals processing 100+ emails a day who want AI triage without switching their email client
✅Executives and consultants managing two to four email accounts who want one tool to handle all of them
✅Gmail and Outlook power users who love their current app but want AI filtering layered on top without any interface change
✅Anyone who has declared email bankruptcy more than once and wants a sustainable system that runs automatically
❌ Not For
❌Users expecting AI to draft, send, or autonomously handle replies, since SaneBox only sorts and routes mail
❌People wanting a free permanent option, because there is no free plan and the minimum is $7 per month after the 14-day trial
❌Teams needing collaboration, shared inboxes, or multi-user dashboards, as SaneBox is priced and designed per individual
❌Those managing only a handful of emails a day, where the AI filtering benefit does not justify the subscription cost
Availability
Platform & Accessibility
Instantly
web-basedapi
SaneBox
web-basedmobiledesktop
Use & Audience
Tasks & Who It's For
Integrations
Integrations
Instantly
CRM
HubSpotSalesforcePipedrive
Automation
Zapier
Communication
Slack
Other
Clay
SaneBox
Communication
GmailOutlookApple MailYahoo MailFastmail
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.SaneBox
1
Aditya, a partner at a consulting firm, connects his three email accounts to SaneBox and immediately stops seeing 40 percent of his daily mail in his main inbox, reclaiming an hour each morning.2
A nonprofit director uses the Dinner plan to manage her personal, work, and two volunteer role inboxes in one SaneBox subscription and reports her first inbox zero in three years.3
Priya, a freelance designer, drags a demanding low-budget client's domain to SaneBlackHole after a project ends and never sees their mass-forward emails again without unsubscribing from anything.Keep Exploring