Instantly and Smartlead are both cold-email sales engagement platforms with AI agents and a free trial but no permanent free plan. Instantly bundles a 450M+…
Best for Instantly: Teams that want a 450M+ B2B lead database and website-visitor identification bundled directly into outreach plans, scaling from a $47/month Growth tier up to Agency/Hypergrowth without needing a native mobile app.
Best for Smartlead: Teams that need to monitor campaigns from iOS/Android apps, want dedicated sending infrastructure (SmartInfra) for deliverability control, or need documented API/webhook access with named integrations like Clay, Zapier, Make, and n8n.
At a Glance
Instantly
Smartlead
Primary category
Sales
Sales
Rating
Not documented
Not documented
Pricing model
Subscription
subscription (tiered, usage-based limits)
Starting price
$37.60/month (billed annually)
$39 per month (Base plan)
Free plan
Not documented
Not documented
Free trial
Yes
Yes
Platforms
Web
Web, iOS, Android
Team collaboration
Not documented
Not documented
AI features
Yes
Yes
Public API
Yes
Yes
Key Differences
Mobile app access
Instantly: No iOS or Android app is documented; Instantly is positioned as a web-app platform.
Smartlead: Ships native iOS and Android apps alongside the web platform.
Reps who need to check replies or campaign status away from a desktop depend on native mobile access.
Stated lead database size
Instantly: Access to a 450M+ B2B lead database with email verification is included in bundle plans.
Smartlead: SmartProspect delivers verified leads, but no total database size is stated in the facts.
A disclosed database size lets buyers estimate how much prospecting volume they're actually getting for the price.
Deliverability infrastructure
Instantly: Uses AirMail infrastructure built for email deliverability, bundled into plans.
Smartlead: Offers SmartInfra, dedicated servers specifically for controlling deliverability, positioned as a differentiator.
Dedicated sending infrastructure can matter for teams sending high email volumes who need more direct control over sender reputation.
Named CRM and workflow integrations
Instantly: Includes a built-in CRM feature but does not list specific named third-party integrations in the facts.
Smartlead: Explicitly integrates with HubSpot, Salesforce, Pipedrive, Clay, Zapier, Make, and n8n.
Named integrations reduce the risk of a tool not connecting to an existing sales stack.
Entry-level pricing
Instantly: Growth (outreach-only) plan starts at $47/month.
Smartlead: Base plan starts at $39/month.
A lower entry price matters for solo founders or small teams testing cold email before scaling spend.
Feature-by-Feature
Core Outreach Features
Feature
Instantly
Smartlead
AI agent for sending and reply handling
Available
Available
Built-in lead database
Available
Available
Website visitor tracking
Available
Not documented
Integrated CRM
Available
Available
Platforms & Integrations
Feature
Instantly
Smartlead
Native iOS/Android apps
Not documented
Available
API & webhooks
Not documented
Available
Named CRM/automation integrations
Not documented
Available
Pricing & Plans
Feature
Instantly
Smartlead
Entry-level monthly price
Available
Available
Free trial (no credit card)
Available
Available
Permanent free plan
Unavailable
Unavailable
Custom Enterprise tier
Available
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Instantly
Growth — $47/month ($37.60/month billed annually) monthly or annual
Hypergrowth — $97/month ($77.60/month billed annually) monthly or annual
Light Speed — $358/month ($286.30/month billed annually) monthly or annual
Enterprise — Custom pricing custom
Smartlead
Base — $39 per month monthly (17 percent off annually)
Pro — $94 per month monthly (17 percent off annually)
Unlimited Smart — $174 per month monthly (17 percent off annually)
Unlimited Prime — $379 per month monthly (17 percent off annually)
Pros & Cons
Instantly
Pros
Unlimited connected email accounts with no per-seat pricing on any plan
Effective automated warmup that many users report meaningfully improves inbox placement
Fast, intuitive setup even for teams with no prior cold email experience
Strong G2 reputation with thousands of largely positive verified reviews
Bundled lead database and CRM reduce the need for separate outbound tools
Cons
Deliverability results can be inconsistent and hard to diagnose even with warmup enabled
Lead database data quality is reported as uneven, with stale or mismatched contacts at scale
Real-world monthly cost rises quickly once Leads and CRM modules are added to base Outreach pricing
Some users report done-for-you domain setups arriving with weak sender reputation
No permanent free plan, only a limited free trial period
Smartlead
Pros
All plans include unlimited sending mailboxes, which can be more cost-effective than per-mailbox pricing tools
Strong deliverability focus with AI warm-up and dedicated SmartServers on higher tiers
Agency-friendly features like multiple client workspaces on the Unlimited Prime plan
Annual billing offers a meaningful 17 percent discount across all tiers
Cons
Pricing is based on contact and send volume, which can make costs harder to predict at scale than flat per-seat pricing
Several capabilities like CRM access are gated behind the Pro plan and above
Add-ons such as SmartServers and SmartDelivery add extra cost on top of the base subscription
Relatively young company (founded 2021) compared to some longer-established sales engagement platforms
Use Cases
Choose Instantly: Teams that want a 450M+ B2B lead database and website-visitor identification bundled directly into outreach plans, scaling from a $47/month Growth tier up to Agency/Hypergrowth without needing a native mobile app.
Choose Smartlead: Teams that need to monitor campaigns from iOS/Android apps, want dedicated sending infrastructure (SmartInfra) for deliverability control, or need documented API/webhook access with named integrations like Clay, Zapier, Make, and n8n.
Need both: An agency managing outbound for multiple clients might use Smartlead's dedicated infrastructure and mobile apps for day-to-day monitoring while pulling from Instantly's larger stated lead database for prospecting volume that exceeds Smartlead's own SmartProspect credit limits.
Instantly
B2B cold email outreach at scale — Sales teams run high-volume outbound campaigns across many connected inboxes while maintaining deliverability.
Lead generation agencies — Agencies manage cold outreach for multiple clients using shared lead sourcing, warmup, and reporting infrastructure.
Founder-led sales outbound — Early-stage founders run their own outbound campaigns to book sales meetings without hiring a dedicated SDR team.
Smartlead
High-volume cold outbound — Sales teams running large cold email campaigns use Smartlead's unlimited mailboxes and warm-up tools to scale sending while protecting deliverability.
Agency client outreach management — Agencies use client workspaces and dedicated SmartServers to run separate, isolated cold email campaigns for multiple clients from one account.
Founder-led outbound sales — Early-stage founders use Smartlead's Base or Pro plans to run their own outbound campaigns without hiring a dedicated SDR team.
Frequently Asked Questions
Does Instantly have a free plan?
No, every published tier is a paid subscription, though a trial is available with no credit card required.
Does Smartlead have a free plan?
No, Smartlead offers a free trial with no credit card required, but no permanent free tier.
What's the cheapest plan for each tool?
Instantly's Growth (outreach-only) plan starts at $47/month; Smartlead's Base plan starts at $39/month.
Where is Smartlead based?
Sydney, Australia, operated by 521 Products Pty Ltd. Instantly's headquarters is not disclosed.
Does either tool have a mobile app?
Smartlead offers iOS and Android apps; a mobile app is not documented for Instantly.
What CRMs does Smartlead integrate with?
HubSpot, Salesforce, and Pipedrive, among others, along with Clay, Zapier, Make, and n8n.