How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Smartlead is the closest alternative for high-volume cold email with unlimited mailboxes and strong deliverability tools.
- Lemlist suits teams that want personalised outreach with images, videos and LinkedIn steps.
- Reply.io suits teams that want email, LinkedIn and calls in one sequence.
- Woodpecker and Mailshake suit smaller teams that want simple, reliable cold email without complexity.
- Deliverability matters more than features: warmup, mailbox rotation and bounce handling decide whether emails reach inboxes.
Instantly made cold email simple: connect mailboxes, upload leads, launch campaigns with warmup and analytics built in. Its alternatives differ in deliverability tooling, multichannel steps, personalisation and agency features. The eight below cover the main options, and all of them send cold email sequences at scale.
Pricing usually runs per user or per mailbox, with tiers for sending volume and features. Prices below are marked "See website" where seat and mailbox pricing changes often. A trial campaign to a small list is the best test, since deliverability and reply rates vary by setup more than by feature list.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Smartlead | High-volume deliverability | See website | Free trial |
 Lemlist | Personalised multichannel outreach | See website | Free trial |
 Reply.io | Email plus LinkedIn and calls | See website | Free trial |
 Woodpecker | Simple reliable cold email | See website | Free trial |
 Mailshake | Easy sequences for small teams | See website | Free trial |
 Klenty | Sales engagement for teams | See website | Free trial |
 Saleshandy | Affordable cold email | See website | Free trial |
 Outreach | Enterprise sales engagement | See website | No |
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We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
The best Instantly alternatives
#1Smartlead
Best for: High-volume deliverability4.5/5 on
G2 (448 reviews, checked Oct 2026)
Visit smartlead.ai
Starting priceSee website
Free planFree trial
Smartlead is the most direct Instantly rival for scale. Unlimited mailboxes on higher tiers, automatic warmup, mailbox rotation and deliverability monitoring help teams send high volumes without burning domains. Agency features cover client seats and campaign management, and the API suits teams that automate list building.
The interface packs in many features, which takes learning, and costs rise with mailboxes and add-ons. For a team or agency sending cold email at volume with deliverability as the priority, Smartlead is the strongest alternative.
What we like- Unlimited mailboxes on higher tiers
- Strong warmup and deliverability tools
- Agency-friendly client management
Watch out for- Interface takes learning
- Pricing rises with mailboxes and features
#2Lemlist
Best for: Personalised multichannel outreach4.6/5 on
G2 (2,416 reviews, checked Oct 2026)
Visit lemlist.com
Starting priceSee website
Free planFree trial
Lemlist stands out for personalisation. Custom images, videos and landing pages with the prospect's name and company make cold emails feel hand-written, and sequences can add LinkedIn visits, invites and messages alongside email. Deliverability tools include warmup and email verification, and reporting covers replies across channels.
Pricing sits above simple email tools, and multichannel sequences need setup time. For a team that wins replies through personalisation rather than volume, Lemlist is the most creative option here.
What we like- Personalised images, videos and landing pages
- LinkedIn steps in sequences
- Good deliverability tools
Watch out for- Higher price than simple tools
- Multichannel setup takes time
#3Reply.io
Best for: Email plus LinkedIn and calls4.6/5 on
G2 (1,559 reviews, checked Oct 2026)
Visit reply.io
Starting priceSee website
Free planFree trial
Reply.io is a full sales engagement platform, combining email, LinkedIn steps, calls, SMS and WhatsApp in one sequence builder. AI helps draft emails and score replies, and analytics track performance by step and channel. The platform suits sales teams that run multichannel outbound as a daily workflow.
Costs grow with seats and add-ons, and the interface is dense for a first-time user. For a sales team that wants every channel in one sequence, Reply.io is the most complete option.
What we like- Email, LinkedIn, calls, SMS and WhatsApp in one sequence
- AI writing help
- Solid analytics
Watch out for- Price grows with seats and add-ons
- Interface is dense for beginners
#4Woodpecker
Best for: Simple reliable cold email4.5/5 on
G2 (105 reviews, checked Oct 2026)
Visit woodpecker.co
Starting priceSee website
Free planFree trial
Woodpecker keeps cold email simple and reliable. Campaigns send with human-like timing, bounce handling and reply detection, and the interface stays focused on email rather than sprawling into many channels. Deliverability practices are solid, and the tool suits small teams and freelancers who want campaigns running without a learning curve.
Multichannel steps are thinner than Lemlist or Reply, and agency management is lighter than Smartlead. For a small team that wants dependable cold email and nothing extra, Woodpecker is the easiest choice.
What we like- Simple, reliable cold email with good deliverability
- Human-like sending
- Clear campaign stats
Watch out for- Fewer multichannel features than Lemlist or Reply
- Agency features are thinner
#5Mailshake
Best for: Easy sequences for small teams4.7/5 on
G2 (376 reviews, checked Oct 2026)
Visit mailshake.com
Starting priceSee website
Free planFree trial
Mailshake is built for small teams and founders who need cold email running quickly. The sequence builder is easy, warmup is included, and templates cover common outreach cases. Reporting shows opens, replies and bounces plainly, and the price suits small teams.
Advanced deliverability tooling trails Smartlead, and LinkedIn steps are basic compared with Lemlist. For a founder or small sales team starting cold email, Mailshake is the friendliest option.
What we like- Easy sequence builder
- Email warmup included
- Good for small teams and founders
Watch out for- Advanced deliverability tools trail Smartlead
- LinkedIn steps are basic
#6Klenty
Best for: Sales engagement for teams4.6/5 on
G2 (391 reviews, checked Oct 2026)
Visit klenty.com
Starting priceSee website
Free planFree trial
Klenty is a sales engagement platform for teams that run structured cadences across email, calls and LinkedIn. CRM integrations with Salesforce, HubSpot and Pipedrive keep activity synced, and manager reporting tracks team performance by rep and sequence. The tool suits sales teams with a defined outbound process.
The interface looks dated next to Lemlist or Smartlead, and pricing grows with seats. For a sales manager who wants cadence control and CRM sync, Klenty is a solid team choice.
What we like- Email, calls and LinkedIn cadences
- CRM integrations
- Good reporting for managers
Watch out for- Interface feels dated in places
- Pricing grows with team size
Starting priceSee website
Free planFree trial
Saleshandy competes on price. Cold email campaigns, warmup, email verification and basic sequences come at a lower monthly cost than most rivals, which suits freelancers, startups and small agencies. Setup is simple, and the tool covers the core cold email workflow without extras.
Advanced deliverability features trail Smartlead, and multichannel steps are limited. For a budget buyer who wants working cold email at the lowest cost, Saleshandy is the value pick.
What we like- Low prices for cold email
- Email warmup and verification
- Simple campaign setup
Watch out for- Fewer advanced features than Smartlead
- Deliverability tools are basic
#8Outreach
Best for: Enterprise sales engagement4.3/5 on
G2 (3,671 reviews, checked Oct 2026)
Visit outreach.io
Starting priceSee website
Free planNo
Outreach is the enterprise sales engagement platform, with sequences, AI assistance, conversation intelligence and deep CRM integration. Large sales teams use it to run outbound, manage pipelines and coach reps from one system, with governance and reporting to match.
Pricing and complexity suit enterprises, not small cold email campaigns. For a large sales organisation that wants engagement, AI and governance in one platform, Outreach is the most complete option here.
What we like- Enterprise-grade sequences, AI and analytics
- Deep CRM integration
- Strong governance
Watch out for- Enterprise pricing
- Overkill for small cold email campaigns
How we chose
We compared tools on their published cold email features, deliverability tooling, pricing pages and public reviews from sales teams and agencies. We favoured tools with warmup, mailbox rotation, bounce handling and reply detection, plus a clear pricing model. Prices were marked "See website" because seat and mailbox pricing changes often. We did not claim hands-on testing.
Tool choice matters less than setup. Warm up new mailboxes gradually over several weeks, rotate sending across multiple mailboxes and domains, and never send to purchased lists, which generate spam complaints and bounces. Verify emails before sending, keep daily volume per mailbox modest, and monitor bounce and spam rates weekly.
Also mind the content. Personalised first lines, plain-text formatting and a single clear call to action outperform templated blasts. Set up SPF, DKIM and DMARC records for every sending domain, and use a separate domain for cold outreach so your main domain's reputation stays clean. These steps decide inbox placement more than any feature list.
A cold email pilot should test deliverability before scale. Warm up each new mailbox for at least three weeks, then send a small campaign of a few hundred verified prospects and measure inbox placement, bounce rate and reply rate, not just open rate, since opens are unreliable. Test two subject lines and two opening lines on equal halves of the list, because small wording changes move reply rates more than tool choice does. Check your domain setup, including SPF, DKIM and DMARC, before the first send, and use a separate domain for outreach so your main domain never carries spam complaints. If reply rates stay below one percent after three tests, the problem is usually the list or the offer, not the tool, and no platform switch fixes that.
List quality decides cold email results more than any tool setting. Build lists from companies that match your ideal customer profile, verify every email address before sending, and remove role-based addresses such as info@ or support@, since those rarely reach decision makers and often bounce. Personalise the first line with a real observation about the prospect's company, such as a recent launch or hiring post, because a genuine first line doubles reply rates compared with generic openers. Cap new campaigns at a small test batch, learn from replies and bounces, then scale only the messages that earned replies. A small, accurate list with a relevant message beats a huge, stale list every time. Review list sources quarterly, since job changes and company closures stale even good lists within months.
Frequently asked questions
What is the best alternative to Instantly?
Smartlead is the closest alternative for high-volume cold email with strong deliverability tools and unlimited mailboxes on higher tiers. Lemlist suits personalised outreach, while Woodpecker and Mailshake suit smaller teams that want simplicity. The best pick depends on volume and personalisation needs.
Is Smartlead better than Instantly?
Smartlead matches Instantly on volume and deliverability tooling, with stronger agency features on some tiers. Instantly is simpler for beginners, while Smartlead offers deeper controls for agencies and high-volume senders. Trial both with a small campaign before switching.
Do I need email warmup for cold email?
Yes. Warmup gradually builds a new mailbox's sending reputation by exchanging emails with a warmup network before real campaigns. Skipping warmup leads to spam folder placement and domain damage. Most tools here include warmup, and it should run for several weeks on new mailboxes.
How many cold emails should I send per day per mailbox?
Keep daily volume modest per mailbox, typically in the low tens to around fifty for warmed mailboxes, and spread larger campaigns across multiple mailboxes and domains. Exact limits depend on provider, domain age and list quality. Monitor bounce and spam rates and reduce volume if they rise.
What is the difference between Lemlist and Smartlead?
Lemlist focuses on personalisation with custom images, videos and LinkedIn steps, while Smartlead focuses on high-volume deliverability with unlimited mailboxes and rotation. Choose Lemlist for creative, personalised outreach and Smartlead for scale and agency work.
Can small businesses use cold email tools affordably?
Yes. Saleshandy, Mailshake and Woodpecker offer lower-cost plans for small teams, and most tools offer trials. Start with one mailbox, a small verified list and a simple sequence, then scale only after reply rates prove the approach works for your market.
Sources we checked (8)
- https://www.smartlead.ai
- https://www.lemlist.com
- https://reply.io
- https://woodpecker.co
- https://mailshake.com
- https://www.klenty.com
- https://www.saleshandy.com
- https://www.outreach.io
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.