Instantly vs Smartlead: which cold email tool should you choose in 2026?

Instantly and Smartlead both offer unlimited mailboxes and charge by send volume, not per seat. Pricing, sending limits, warm-up, data and CRM links compared.

Published 20 October 2026. Prices and features from each vendor's own pages.

The short answer

InstantlyPaid from $76.50/workspace

Choose it if you want a database of 450M+ B2B leads included from the first plan.

SmartleadPaid from $32.50/account

Choose it if you want the lowest entry price, from $32.50 a month with 6,000 sends.

PromptLabIn the CRM from $11.99/seat

Choose it if you email accounts you already know, and replies should land on the deal.

Instantly and Smartlead work in a similar way. Both let you connect unlimited email accounts, both warm them up, and neither charges per seat. You pay for send volume and for the size of your lead allowance.

Below, the two are compared on price and sending limits, mailboxes and warm-up, lead data, LinkedIn, and testing and CRM links. Every figure comes from the vendors' own pricing and product pages; prices are per workspace or account a month, billed annually, unless we say otherwise.

Instantly vs Smartlead at a glance

With PromptLab in the third column: the same job done inside a CRM.

Instantly vs Smartlead, with PromptLab: prices and features
Checked on 20 October 2026	Instantly	Smartlead	PromptLab
Pricing
Free plan
Paid plans, a month	$76.50 – $695per workspace	$32.50 – $314.60per account	$11.99per seat on Basic
Free trial	14 days
Billing	Billed annually	Billed annually	Billed monthly
Cold email
Multi-step sequences
Sending mailboxes	Unlimited	Unlimited	Up to 20 per campaign
Email warm-up			Volume ramp-up
LinkedIn steps		Via integrations
Built-in lead database		Add-on
A/B testing	From$238/month
CRM integrations	From$238/month	From$78.30/month	Built in

Pricing: $76.50 to $695 against $32.50 to $314.60

Instantly has Starter at $76.50 a month, Scale at $238 and Agency at $695, per workspace. Starter allows 5,000 sends a month, Scale 125,000 and Agency 500,000. Enterprise is custom, and a 14-day free trial is offered. The page also shows some visitors a different price list: Growth at $47, Hypergrowth at $97 and Light Speed at $358 a month.

Smartlead has four plans: Base at $32.50, Pro at $78.30, Unlimited Smart at $144.50 and Unlimited Prime at $314.60. Base allows 6,000 sends a month, Pro 90,000, Smart 150,000 and Prime 500,000. Smartlead offers a free trial, with no card needed to start.

Sending limits and mailboxes

Both include unlimited email accounts on every plan, so the cost is in sends, not mailboxes. Smartlead's cheapest plan has a higher send limit (6,000 against 5,000) and costs less, which gives it the edge at entry level.

At the top, both reach 500,000 sends a month, on Agency and Unlimited Prime. Smartlead rotates sending across the mailboxes in a campaign automatically. If you want mailboxes bought for you, Smartlead sells Google mailboxes from $4.50 a month plus $13 a year per domain.

Warm-up

Instantly includes warm-up on every plan and adds advanced warm-up from Scale. Smartlead includes warm-up on every plan too, but its pool tier rises with the plan: Foundation on Base, Growth on Pro and Premium on Unlimited Smart and Prime.

So with Smartlead the warm-up pool tier depends on the plan you pay for. With Instantly the split is basic against advanced, and the line falls at $238 a month.

Lead data and LinkedIn

Instantly's Starter includes a database of 450M+ B2B leads and waterfall email enrichment, drawn from 1,500 Instantly credits a month. Smartlead's verified prospect emails are a $59 a month add-on on Base and Pro, and included on Unlimited Smart (50,000) and Unlimited Prime (170,000).

Neither pricing page lists LinkedIn steps inside a sequence. Smartlead says LinkedIn outreach works through tools such as HeyReach and AimFox. Instantly lists no LinkedIn steps.

Testing, CRM and API

Instantly keeps A/Z testing, integrations, the API and webhooks for Scale at $238. Smartlead's API documentation lists A/B testing, and CRM access and the API begin on Pro at $78.30.

For CRM links, Smartlead lists native integrations with HubSpot, Salesforce, Pipedrive and Zoho CRM. Instantly's marketplace lists a HubSpot integration. Agencies should note that Smartlead's client workspaces cost $29 a month each from Pro, with 3 included on Unlimited Prime.

We make PromptLab, so here is where it fits.

Or send sequences from inside your CRM

PromptLab's campaigns send multi-step sequences from your own mailboxes, rotating up to 20 per campaign. A sequence stops when the contact replies or the email bounces, and you can test subject and body variants.

New mailboxes ramp up their daily volume over the first three weeks, and each campaign spaces its emails out within the hours you choose. There's no lead database or warm-up network, so you bring your own list.

Sales automation in PromptLab

Try PromptLab freeIncluded in PromptLab Basic, from $11.99 a user a month, with a 14-day free trial.

Which should you choose?

Choose Instantly if…

You want a database of 450M+ B2B leads included from the first plan.
You prefer three plans with clear send limits and a 14-day free trial.
You want unlimited team members and Unibox on Scale.

Choose Smartlead if…

You want the lowest entry price, from $32.50 a month with 6,000 sends.
You want to buy mailboxes and domains inside the tool.
You need native links to HubSpot, Salesforce, Pipedrive or Zoho CRM.

Choose PromptLab if…

You email accounts you already know, and replies should land on the deal.
You want sequences to stop on a reply without syncing two tools.
You'd rather not pay for a CRM and an outreach tool separately.

Frequently asked questions

Is Instantly better than Smartlead?

Neither is better on every point. Smartlead costs less at entry, from $32.50 a month against $76.50, and sends more on its cheapest plan. Instantly includes a 450M+ lead database on Starter.

Do Instantly and Smartlead charge per mailbox?

No. Both include unlimited email accounts on every plan. You pay by send volume instead, for example 5,000 sends a month on Instantly Starter or 6,000 on Smartlead Base.

Which has a free trial, Instantly or Smartlead?

Both. Instantly offers a 14-day free trial on its paid plans, and Smartlead offers a free trial on every plan with no card needed. Neither pricing page lists a free plan.

Does Smartlead include leads like Instantly?

Partly. Verified prospect emails are a $59 a month add-on on Smartlead Base and Pro, and are included from Unlimited Smart at $144.50 a month. Instantly includes its lead database from Starter.

Which has more sending capacity?

They match at the top: 500,000 sends a month on Instantly Agency ($695) and Smartlead Unlimited Prime ($314.60). Smartlead reaches it for less.

Is there a CRM with email sequences built in?

Yes. PromptLab's campaigns send multi-step sequences from up to 20 of your own mailboxes, stop on replies and bounces and test A/B variants, on every plan from $11.99 a user a month with a 14-day free trial.