Instantly vs QuickMail in 2026: AI-agent outbound platform vs a proven email-plus-LinkedIn sequencer
Both give you unlimited sending accounts and a free plan or trial to test them. What separates them is whether you want AI agents and a lead database bundled in, or LinkedIn folded into the same sequence as email.
Instantly
QuickMail- Both platforms include unlimited sending accounts on every paid plan, with no per-mailbox fee for either Instantly or QuickMail.
- QuickMail runs LinkedIn outreach (connection requests, messages, InMails) in the same sequence as email; Instantly has no LinkedIn channel at all.
- Instantly includes a built-in B2B lead database and AI-generated campaigns from a brief; QuickMail has no prospecting database and no AI campaign generation, you supply your own contact lists.
- QuickMail's free AutoWarmer via MailFlow runs on every plan starting at $49/month and does not count against your monthly email limit; Instantly's warm-up is also included on every paid plan.
- QuickMail has operated since 2014, giving it a longer uptime and deliverability track record than Instantly, which is a comparatively newer platform.
- Instantly's AI Reply Agent classifies and routes replies into a built-in CRM; QuickMail consolidates email and LinkedIn replies into one unified inbox but has no CRM or AI-driven reply classification.
- QuickMail requires its $299/month Agency plan for webhook access, while Instantly includes API access from its $47/month Growth plan.
Instantly and QuickMail agree on the fundamental architecture of cold email: unlimited sending accounts so deliverability does not become a per-mailbox cost, and warm-up baked in rather than sold as an add-on. Where they diverge is what gets bolted onto that foundation. Instantly has grown into a fuller outbound platform with a built-in B2B lead database, an AI Sales Agent that drafts campaigns from a brief, an AI Reply Agent that triages responses, and a CRM to track pipeline, none of which QuickMail offers. QuickMail, running since 2014, put its energy into LinkedIn: connection requests, messages, and InMails run in the same sequence as email steps, replies from both channels land in one unified inbox, and free AutoWarmer via MailFlow runs on every plan without eating into your monthly send limit. One platform is betting on AI doing more of the work for you; the other is betting on multi-channel reach and a longer track record of just working.
The tools at a glance
Instantly
Cold email automation platform with unlimited sending accounts, a B2B lead database, and AI agents for outreach and sales.
Unlimited sending accounts on every paid plan is where Instantly starts, but the product has stopped being just a sender. A built-in B2B lead database means prospecting happens without leaving the platform, and the AI layer does real work: the AI Sales Agent turns a written brief into a full campaign, copy and sequence structure included, while the AI Reply Agent reads incoming responses and routes qualified interest straight into a built-in CRM.
That CRM matters more than it might sound. Instead of exporting replies to a spreadsheet or a separate pipeline tool, opportunities generated from outreach get tracked against revenue inside the same product you sent the campaign from. For a team trying to reduce the number of tools it manages, that consolidation is a genuine advantage over a pure sender.
The gap is channel breadth. Instantly is email only, no LinkedIn steps of any kind, so a sequence that needs a connection request alongside an email has to be built and tracked in two separate tools. Pricing runs Growth at $47/month, Hypergrowth at $358/month, and Agency at $555/month, scaling by active leads and monthly email volume rather than by connected accounts.
| Feature | Free $0/mo | Growth $47/mo | Hypergrowth $358/mo | Agency $555/mo | Enterprise Contact |
|---|---|---|---|---|---|
| Email Accounts | Limited | Unlimited | Unlimited | Unlimited | Unlimited |
| Active Leads | Limited | 1,000 | 25,000 | 100,000 | Custom |
| Emails per Month | Limited | 5,000 | 100,000 | 500,000 | Custom |
| B2B Lead Database | ✗ | ✓ | ✓ | ✓ | ✓ |
| Email Warm-up | ✓ | ✓ | ✓ | ✓ | ✓ |
| AI Reply Agent | ✗ | ✓ | ✓ | ✓ | ✓ |
| CRM Access | ✗ | ✓ | ✓ | ✓ | ✓ |
| Website Visitor ID | ✗ | Add-on | ✓ | ✓ | ✓ |
| Client Sub-accounts | ✗ | ✗ | ✗ | ✓ | ✓ |
| API Access | ✗ | ✓ | ✓ | ✓ | ✓ |
QuickMail
Cold outreach platform combining email and LinkedIn sequences with free inbox warm-up and unlimited senders.
QuickMail has been running since 2014, long enough to build a real track record on uptime and deliverability rather than just a features list. The core idea is combining email and LinkedIn into a single sequence editor: connection requests, direct messages, and InMails sit as steps alongside email sends, with delays and conditions between them, so a prospect gets one coordinated outreach flow instead of two uncoordinated ones running in parallel.
Free AutoWarmer via MailFlow is included on every plan starting at $49/month and runs independently of your monthly email limit, which is a meaningfully different deal than tools that sell warm-up as a paid add-on. Inbox rotation spreads campaign volume across as many connected accounts as you add, since senders are unlimited on every tier, and a unified inbox brings email and LinkedIn replies into one place so reps are not toggling between Gmail and LinkedIn messaging.
What QuickMail does not do is prospect for you or generate copy with AI. There is no built-in lead database, so contact lists have to be imported or sourced elsewhere, and there is no AI campaign writer. Starter at $49/month caps out at 1,000 contacts and 5,000 emails a month, tight for a real campaign, which pushes most serious use to Growth at $99/month; API access needs Growth, and webhooks are Agency-only at $299/month.
| Feature | Starter $49/mo | Growth $99/mo | Agency $299/mo |
|---|---|---|---|
| Email senders | Unlimited | Unlimited | Unlimited |
| LinkedIn accounts | Unlimited | Unlimited | Unlimited |
| Users | Unlimited | Unlimited | Unlimited |
| Workspaces | 1 | 1 | 2 (+$49 each) |
| Uploaded contacts | 1,000 | 25,000 | 100,000 |
| Emails sent per month | 5,000 | 100,000 | 500,000 |
| Free AutoWarmer (MailFlow) | ✓ | ✓ | ✓ |
| Unified reply inbox | ✓ | ✓ | ✓ |
| API access | ✗ | ✓ | ✓ |
| Webhook | ✗ | ✗ | ✓ |
Head-to-head feature comparison
| Feature | Instantly | QuickMail |
|---|---|---|
| Unlimited sending accounts | Yes, unlimited on every paid plan | Yes, unlimited on every plan including Starter |
| LinkedIn outreach in the same sequence | No, email only | Yes, connection requests, messages, and InMails as sequence steps |
| Built-in lead / prospect database | Yes, from Growth up | No, requires your own contact lists |
| AI campaign generation | Yes, AI Sales Agent builds campaigns from a brief | No AI campaign writer |
| AI reply classification | Yes, AI Reply Agent classifies and routes replies | No, replies are unified but not AI-classified |
| CRM / pipeline tracking | Yes, AI-powered CRM tracks pipeline from outreach | No CRM layer |
| Free warm-up included | Yes, automatic warm-up on all paid plans | Yes, free AutoWarmer via MailFlow, does not count against send limits |
| Unified email + LinkedIn reply inbox | Not applicable, no LinkedIn channel | Yes, one inbox for email and LinkedIn replies |
| API access at entry paid tier | Yes, from Growth ($47/mo) | No, requires Growth ($99/mo) |
| Platform track record | Newer platform, growing feature set | Operating since 2014 |
| Entry price | $47/month (Growth) | $49/month (Starter) |
Which should you choose?
InstantlyQuickMailInstantlyQuickMailInstantlyQuickMailInstantlyThis is the closest matchup of the six pairs in this batch because both platforms share the same core architecture: unlimited sending accounts, warm-up included rather than upsold, and flat pricing that scales by volume rather than by seat. The real fork in the road is whether you want AI doing more of the campaign-building and reply-sorting work for you, which is Instantly's bet, or whether you want LinkedIn genuinely folded into the same sequence as email with a longer operating history behind the deliverability claims, which is QuickMail's bet. Neither has both: Instantly has no LinkedIn channel, QuickMail has no AI writer or lead database.
Bottom line
Choose Instantly if you want a built-in lead database, AI-drafted campaigns, and a CRM that tracks pipeline from replies, and you are fine running email-only outreach. Choose QuickMail if LinkedIn needs to be part of your sequence alongside email, you already have your own contact lists, and a platform with more than a decade of operating history matters to you. Teams that genuinely need both AI campaign generation and LinkedIn steps in one sequence will not find that combination in either tool today and should plan to run a secondary channel tool alongside whichever one they pick.
Frequently asked questions
Does QuickMail have an AI campaign writer like Instantly?
No, QuickMail has no AI campaign generation tool; you write your own sequences and import your own contact lists. Instantly's AI Sales Agent can draft a full campaign, copy and sequencing included, from a written brief, which is a meaningful time-saver if you do not have a dedicated copywriter.
Can Instantly run LinkedIn outreach alongside email like QuickMail?
No, Instantly is an email-only platform with no LinkedIn channel of any kind. QuickMail runs connection requests, direct messages, and InMails as steps in the same sequence as email through a Chrome extension, which is the clearer choice if LinkedIn needs to be part of your outbound motion.
Is QuickMail's free warm-up as good as Instantly's?
Both include warm-up on every paid plan at no extra charge, but QuickMail is explicit that its AutoWarmer via MailFlow runs independently of your monthly email send limit, so warm-up activity never competes with campaign volume. Instantly's warm-up is also included on all paid tiers, though the company does not detail whether it is excluded from send limits in the same way.
Which platform is better for a lead generation agency managing multiple clients?
It depends on whether AI-assisted campaign building or LinkedIn outreach matters more: Instantly's Agency plan at $555/month supports client sub-accounts with the highest active lead limits and AI reply triage, while QuickMail's Agency plan at $299/month supports multiple client workspaces with webhook access and a lower entry cost. QuickMail's flat per-plan pricing with unlimited users tends to be cheaper for agencies managing many small accounts.
Does Instantly include a prospect database that QuickMail lacks?
Yes, Instantly includes a built-in B2B lead database from its Growth plan up, letting you search and filter contacts directly inside the platform. QuickMail has no equivalent feature; you need to import your own lists or connect a separate lead-sourcing tool via Zapier.
Is QuickMail a more established platform than Instantly?
Yes, QuickMail has been operating since 2014, giving it a longer track record for uptime and deliverability reliability than Instantly, which is a comparatively newer entrant that has grown quickly by adding AI agents, a lead database, and a CRM on top of its sending core.