People.ai
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People.ai is a revenue-intelligence platform that captures sales activity and surfaces insights to accelerate deals.
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Instantly
Scale cold email outreach with unlimited inboxes, warmup, and deliverability tools.
Free trial Claimed API Teams
Toolglade’s take
Toolglade's take: Instantly is the go-to for high-volume cold email teams who value mature deliverability infrastructure and unlimited inboxes, but the real monthly cost climbs quickly once you add leads, CRM, and enrichment credits on top of the sending plan.
About Instantly
Instantly is a cold email and sales engagement platform built for high-volume outbound, offering unlimited email accounts, automated warmup, a unified reply inbox, and a 450M+ B2B lead database. Outreach plans start at $37/mo (annual) and scale to $358/mo, with lead enrichment billed separately via credits. It is best known for mature deliverability infrastructure favored by agencies and lead-gen teams.
Instantly is one of the most popular cold email and sales engagement platforms for high-volume outbound. It lets you connect unlimited email accounts, automatically warm them up using a shared pool of 300,000+ real inboxes, and run multi-step campaigns with A/Z testing, smart scheduling, and inbox rotation to protect deliverability. A unified reply inbox (Unibox) centralizes responses across every connected account, with AI labels and reply suggestions to help teams qualify and respond faster. Beyond sending, Instantly bundles a B2B lead database of 450M+ verified contacts (via credit-based enrichment), a lightweight CRM for managing deals, and analytics to track campaign performance. It is aimed at agencies, lead-gen teams, and founders who send at volume and prioritize deliverability infrastructure over deep multichannel sequencing.
TL;DR
Instantly is a high-volume cold email and sales engagement platform offering unlimited email accounts, automated warmup, a unified reply inbox, and a 450M+ B2B lead database. Outreach plans start at $37/month billed annually and scale to $358/month, with lead enrichment billed separately via credits. It is best known for mature deliverability infrastructure and is a favorite among agencies and lead-gen teams. The main tradeoff is that real monthly cost rises quickly once leads, CRM, and credits are added.
Company overview
Instantly (instantly.ai) is a sales engagement and lead intelligence platform focused on cold email outreach at scale. It has grown rapidly to become one of the most widely used cold email tools, holding a 4.8/5 rating from more than 4,000 reviews on G2, and serves a large base of agencies, lead-generation teams, and B2B founders.
The company positions itself as an all-in-one outbound stack, combining email sending, deliverability tooling, a large B2B contact database, and a lightweight CRM. Its shared warmup network spans 300,000+ real inboxes used to build and maintain sender reputation across customer accounts.
Product features
The core product lets users connect unlimited email accounts, run automated unlimited warmup, and launch multi-step campaigns with A/Z testing, smart sending schedules, and inbox rotation to safeguard deliverability. The Unibox unified inbox consolidates replies from all connected accounts, adding AI labels, AI reply suggestions, and an AI Inbox Manager to speed up qualification and response.
On the data side, Instantly includes a B2B lead database of 450M+ verified contacts with firmographic filters (title, seniority, company size, industry, location) and buying-intent signals, plus real-time email verification. It integrates with CRMs such as HubSpot, Salesforce, and Pipedrive, and connects to automation tools like Zapier and Make, with API and webhook access for custom workflows.
Target market
Instantly primarily targets cold email agencies, lead-generation and demand-generation teams, and B2B founders or solo SDRs who send at high volume and treat deliverability as mission-critical. Its unlimited-inbox model and shared warmup pool make it particularly attractive to agencies managing many client accounts, while its bundled lead database appeals to teams that want prospecting and sending in one platform.
Buyer personas
End users
SDRs, growth marketers, and agency operators who build campaigns, manage sending accounts, and work replies inside the Unibox day to day.
Buyers
Agency owners, heads of sales/growth, and founders who own the outbound budget and evaluate cost per inbox and per lead.
Key influencers
Deliverability specialists, cold email consultants, and RevOps team members who advise on tooling and deliverability best practices.
Ideal customer profile
A lead-gen agency or B2B team running high-volume cold email across many inboxes that prioritizes deliverability infrastructure and wants sending, warmup, and a lead database in one platform.
Funding & performance
Instantly is widely reported as a bootstrapped, founder-owned company rather than a venture-backed startup, and it has not announced institutional funding rounds. Specific funding figures are not publicly disclosed.
Pros & cons
Pros
- Unlimited email accounts and warmup on every plan
- Mature, well-regarded deliverability infrastructure
- Unibox centralizes replies across all inboxes
- Large 450M+ verified B2B lead database built in
- Strong value for high-volume senders
- 4.8/5 across 4,000+ G2 reviews
Cons
- Real cost climbs fast once leads, CRM, and credits are added
- Lead enrichment credits don't roll over month to month
- Support is often slow or AI-bot-first per user reviews
- Weaker multichannel sequencing than some rivals
- No mobile app or browser extension
Pricing plans
Growth
$37 / month
- Billed annually ($47/mo monthly)
- Unlimited email accounts
- Unlimited email warmup
- 5,000 emails/month, 1,000 contact uploads
- Basic analytics and CRM integrations
- Chat support
Hypergrowth
$97 / month
- Everything in Growth
- 100,000 emails/month, 25,000 uploaded contacts
- Unibox unified reply inbox
- Advanced analytics and reporting
- Priority support
Light Speed
$358 / month
- Everything in Hypergrowth
- 500,000+ emails/month, 100,000+ contacts
- Dedicated sending server
- IP rotation for heaviest senders
- Premium support
Enterprise
Custom / month
- Custom sending volume and seats
- Dedicated infrastructure
- Dedicated account management
- Custom onboarding and SLAs
Key features
API
Team collaboration
Integrations
HubSpot, Salesforce, Pipedrive, Zapier, Make, Webhooks, Slack
Input types
text, csv
Output types
text, email, analytics
Best For
Agencies running cold email at scale, Lead-gen teams, B2B founders and SDRs, High-volume outbound
Compare key features
View all alternatives →Feature
Instantly
People.ai
Salesloft
Pricing
Freemium
Freemium
Freemium
Free plan
No
No
No
Free trial
Yes
Yes
Yes
API
Yes
Yes
Yes
Team support
Yes
Yes
Yes
Frequently asked questions
Is Instantly worth it?+
For teams running cold email at volume, Instantly is generally worth it thanks to unlimited inboxes, unlimited warmup, and mature deliverability infrastructure that earns it a 4.8/5 across 4,000+ G2 reviews. It is less compelling if you need deep multichannel sequencing or want to avoid the add-on costs for leads and enrichment credits.
How much does Instantly cost?+
Instantly Outreach plans start at $37/month billed annually (or $47/month monthly) for Growth, then $97/month for Hypergrowth and $358/month for Light Speed, with custom Enterprise pricing above that. The B2B lead database is billed separately via credits, so a complete setup with leads and CRM commonly runs $150-$400/month.
What are the best Instantly alternatives?+
Popular alternatives include Smartlead, Lemlist, Woodpecker, Saleshandy, and Snov.io. Smartlead is often compared on deliverability and inbox rotation, while Lemlist and Saleshandy add stronger multichannel and personalization features.
Does Instantly have a free plan?+
Instantly does not offer a free forever plan, but it provides a 14-day free trial with no credit card required. The trial includes core Outreach features and a limited pool of credits to test lead search and AI tools.
Instantly vs Smartlead: which is better?+
Both are high-volume cold email platforms with strong deliverability. Instantly bundles a large B2B lead database and a polished Unibox, while Smartlead is often praised for inbox placement (around 88% in tests versus Instantly's ~81%) and flexible API access. The best choice depends on whether you value Instantly's built-in leads and UX or Smartlead's deliverability and developer flexibility.
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