Can you use both Instantly and Smartlead?

Some agencies do, usually to split client accounts across two sending infrastructures rather than concentrate deliverability risk in one platform. Both tools do the same core job, connect mailboxes, warm them up, and send sequences, so running both for the same campaign is duplicate work rather than a complementary pairing. The more common reason to run both is comparing send performance during a trial before standardizing on one.

How do you migrate from Instantly to Smartlead, or the other way?

Both platforms support CSV export and import for leads and let you reconnect the same mailboxes over SMTP/IMAP, so moving contact lists and sender accounts is mechanical. What does not move automatically is warmup history and sender reputation built inside one platform's own warmup pool; a mailbox generally needs a short re-warming period after a switch, even though the inbox itself hasn't changed.

Which one is cheaper for a small list?

At the entry tier, Smartlead's Base plan is priced lower than Instantly's cheapest bundle, but the two aren't sending the same volume for that price: Smartlead's Base tier caps monthly sends at 6,000 with no CRM or warmup pool included, while Instantly's Starter tier includes unlimited mailboxes and unlimited warmup at a higher monthly price. Compare the volume and features included, not only the headline number.

Do either of these replace a CRM?

No. Smartlead includes a basic CRM view on its Pro tier and above, and Instantly's Unibox handles reply threading, but neither is a system of record for deals, pipeline stages, or a contact's full history across every channel. Teams running cold email through either platform still need somewhere the replies turn into tracked opportunities.

Instantly vs Smartlead

Two cold email sending platforms built around unlimited mailboxes and built-in warmup, priced differently and bundling different extras around the same core send engine.

app.salescrew.io/deals

Pipeline with weighted forecast and stage breakdown

Choose Instantly when a built-in lead database and an AI sending agent matter alongside the send engine. Choose Smartlead when a lower entry price and multiple client workspaces on one account matter more, and you're comfortable stitching in a separate data source yourself.

The short answer

Both platforms send from unlimited connected mailboxes with unlimited warmup included on every tier, so the sending mechanics are close to identical.
Instantly's entry Starter bundle runs $85 to $94 a month for 5,000 emails and includes a 450M+ lead database plus an AI Sales Agent; Smartlead's entry Base plan runs $39 a month for 6,000 sends with no lead database, warmup pool, or CRM included.
Smartlead's higher tiers add multiple client workspaces, full API and webhook access, and a dedicated account manager, features aimed at agencies running many client accounts from one login.
Neither platform is a CRM: replies land in an inbox-style view, not a pipeline, so a positive reply still has to be tracked somewhere else.

Instantly vs Smartlead at a glance

Dimension	Instantly	Smartlead
Entry price	$85–$94/mo (Starter): 5,000 emails/mo, 1,000 uploaded contacts	$39/mo (Base): 6,000 emails/mo, 2,000 contacts, no CRM or warmup pool
Mailboxes / warmup	Unlimited mailboxes, unlimited warmup on every tier	Unlimited mailboxes on every tier; warmup pool is a paid add-on on Base and Pro
Lead database	450M+ B2B contact database bundled from Starter up	No built-in lead database; brings your own list or pairs with a separate data source
Built-in CRM / reply handling	Unibox for reply threading; no full pipeline	Basic CRM view included from the Pro tier ($94/mo) up
Agency / multi-client features	Agency bundle at $500/mo with dedicated IP pools and server rotation	Unlimited Prime tier ($379/mo) includes 3+ client workspaces and a dedicated manager
API / webhooks	Included on paid tiers	Add-on ($39/mo) on the Unlimited Smart tier; included on Unlimited Prime
Best-fit use case	A team that wants sending, warmup, and a lead source in one subscription	An agency or team that wants the lowest entry price and is fine sourcing leads elsewhere

Figures checked on vendor pricing pages, September 2026 (instantly.ai/pricing, smartlead.ai/pricing). Both list monthly and annual billing; annual rates run roughly 10–17% lower than the monthly prices shown here.

Where each platform holds up, and where it doesn't

Instantly

Bundles a 450M+ lead database with sending, so a team without its own data source doesn't need a separate tool to start
Unlimited warmup included at every tier, with no separate add-on fee
Higher entry price than Smartlead's Base tier for a comparable or smaller send volume
The AI Sales Agent and advanced deliverability features are gated to the Scale tier and above ($175+/mo)

Smartlead

Lowest published entry price of the two, useful for a small list or a single-client test before scaling up
Multiple client workspaces and a dedicated manager on the top tier, built with agencies running several accounts in mind
No built-in lead database at any tier; sourcing contacts is a separate cost and a separate tool
Warmup pool and API/webhook access are paid add-ons on the lower tiers rather than included

How to choose

If the team does not already have a reliable way to find contacts, Instantly's bundled 450M+ lead database removes a step: connect a mailbox, pull a list, and start sending from one login. That convenience shows up in the price; Instantly's entry tier costs more than Smartlead's for a similar or smaller monthly send volume, and the difference is largely the database and the AI agent layered on top.

If the team already sources leads elsewhere, through a scraper, a data provider, or an existing CRM export, Smartlead's lower entry price and its per-add-on structure mean paying only for the sending infrastructure rather than a bundle that includes data you don't need. Agencies running several client accounts from one login should also weigh Smartlead's workspace and account-manager features on its top tier against Instantly's Agency bundle, which leans more on dedicated IP infrastructure than multi-workspace management.

Either way, price the volume you actually plan to send, not the tier name. Both platforms publish sends-per-month caps that step up sharply between tiers, and a list that outgrows the entry tier on either platform means a real jump in monthly cost, not a small one.

Questions

Can you use both Instantly and Smartlead?: Some agencies do, usually to split client accounts across two sending infrastructures rather than concentrate deliverability risk in one platform. Both tools do the same core job, connect mailboxes, warm them up, and send sequences, so running both for the same campaign is duplicate work rather than a complementary pairing. The more common reason to run both is comparing send performance during a trial before standardizing on one.
How do you migrate from Instantly to Smartlead, or the other way?: Both platforms support CSV export and import for leads and let you reconnect the same mailboxes over SMTP/IMAP, so moving contact lists and sender accounts is mechanical. What does not move automatically is warmup history and sender reputation built inside one platform's own warmup pool; a mailbox generally needs a short re-warming period after a switch, even though the inbox itself hasn't changed.
Which one is cheaper for a small list?: At the entry tier, Smartlead's Base plan is priced lower than Instantly's cheapest bundle, but the two aren't sending the same volume for that price: Smartlead's Base tier caps monthly sends at 6,000 with no CRM or warmup pool included, while Instantly's Starter tier includes unlimited mailboxes and unlimited warmup at a higher monthly price. Compare the volume and features included, not only the headline number.
Do either of these replace a CRM?: No. Smartlead includes a basic CRM view on its Pro tier and above, and Instantly's Unibox handles reply threading, but neither is a system of record for deals, pipeline stages, or a contact's full history across every channel. Teams running cold email through either platform still need somewhere the replies turn into tracked opportunities.