Instantly vs QuickMail - which cold email platform fits you best? QuickMail and Instantly both sell volume-based cold email with unlimited senders. Gold Penguin compare pricing, lead sourcing and agency features to help you pick. Justin Gluska Updated August 15, 2026 Instantly.ai campaign overview Reading Time: 6 minutes QuickMail wasn't on its shortlist when Gold Penguin picked a sending tool a few years back - Gold Penguin went from Lemlist to Instantly & mostly stopped looking. But it comes up often enough in agency circles that it deserves a real look next to Instantly. Both tools chase a similar type of user, too: teams who want to send high volume without paying per seat. Here's the TLDR: if you're running high email volume across a lot of domains & want a built-in database of 450M+ B2B contacts so you're not sourcing every lead by hand, Instantly is the stronger fit. If you're a lead gen agency running LinkedIn & email together for a handful of clients & want inbox rotation baked into the platform without configuring it yourself, QuickMail is genuinely worth a look. These two overlap more than most Instantly comparisons Gold Penguin has written - the rest of this article is about figuring out which camp you're actually in. What each tool actually is. Instantly launched in 2021 out of Tallinn, Estonia, & founders Reio Suun & Nils Schneider built a lot of it in public on Twitter - part of why it has such a large, loud community around it today. Every plan comes with unlimited email accounts & unlimited warmup, so scaling means adding domains, not adding seats. On top of sending, it layers automated warmup, a unified inbox (Unibox), A/Z testing, bounce detection, AI reply agents that sort responses by intent, & a separate lead database of 450M+ B2B contacts you can pull straight into campaigns. QuickMail (quickmail.com) positions itself explicitly as built for lead gen agencies, & it shows in the product. Email & LinkedIn outreach live inside the same campaigns instead of being bolted together, sending gets spread across your connected mailboxes automatically through a branded Inbox Rotation(TM) feature, & a "Deliverability AI" swaps sending accounts on the fly when one starts underperforming. There's also a "Reword with AI" tool for copy variants. Warmup runs through a native MailFlow integration that's free for up to 50 inboxes, & separate workspaces let agencies keep client accounts cleanly split apart - 1 workspace on the entry two plans, 2 on Agency (extra workspaces run $49/mo each). Pricing - The real difference. This is where it gets interesting - the two are a much closer match than Gold Penguin expected going in. Both charge based on contacts & email volume rather than seats, & the entry & mid tiers land almost dollar-for-dollar the same: At the top end, QuickMail's Agency plan actually edges out Instantly's Light Speed plan on raw volume for less money ($299 vs. $358) - though Light Speed adds a private deliverability network that QuickMail doesn't have a stated equivalent for. The bigger gap is lead sourcing. None of the Instantly sending plans above include contacts to email - that's a separate credit-based database (Growth Credits at $47/mo for 1,500 credits, up through Hyper from $197/mo), or you bundle sending + credits together in one plan (Starter bundle $94/mo, Scale $194/mo - the most popular, adding the AI Reply Agent, Unibox & advanced deliverability - or Agency at $555/mo, all with roughly 10% off annually). QuickMail has no equivalent database sitting behind its price tags; you bring your own list, or lean on their LinkedIn ICP filters to start some conversations without one. Instantly's straight sending plans also knock off roughly 20% for annual billing (Growth drops to $37.60/mo); as of this writing, QuickMail's pricing page only shows monthly billing, with no annual option listed. Where QuickMail wins. If your agency runs LinkedIn outreach alongside email for the same prospect list, QuickMail's multichannel setup is genuinely better than running two separate tools & trying to sync them yourself. Inbox Rotation(TM)& the account-swapping deliverability AI also mean less manual babysitting once campaigns are live - you're not the one deciding which mailbox sends next, it's handled for you. The "built for lead gen agencies" positioning isn't just marketing copy either; the workspace structure & unlimited LinkedIn accounts on every plan (including the $49/mo entry tier) are genuinely useful if you're managing outreach for a handful of clients rather than running one brand at massive scale. & because pricing is monthly-only with a 14-day free trial & no long-term contract, it's a lower-commitment way to test whether multichannel outreach actually moves the needle for your list before you scale spend. Where Instantly wins. Unlimited email accounts used to be Instantly's clearest edge over per-seat tools - but QuickMail also gives you unlimited senders on every plan, so that's not really the dividing line here anymore. The real gap is scale & lead sourcing. Instantly's 450M+ contact database means you're not manually building every list from scratch, the Light Speed plan gives you a much higher ceiling with a private deliverability network attached, & annual discounts apply across both the sending & database product lines. There's also just more built up around it - years of build-in-public content, a bigger community, & integrations with Zapier, HubSpot, Google Sheets & Pipedrive plus a full API. Gold Penguin bought its first yearly plan during a Black Friday promo & have renewed every year since - about four years running now. Its biggest early complaint was contact management, which dynamic lists & tagging eventually fixed; that's the kind of gap that shows up & gets addressed as a product matures at scale. If you want the fuller breakdown, Gold Penguin cover it in its Instantly review & pricing breakdown. Which one is right for you? Pick Instantly if you're scaling raw sending volume across a lot of domains & want a lead database bundled in so you're not sourcing every contact by hand - that's most agencies & teams pushing serious cold email volume, which is exactly the position Gold Penguin were in when Gold Penguin made the switch. Pick QuickMail if you're running LinkedIn & email together for a smaller set of clients, already have your own lead lists or a CRM feeding contacts in, & want inbox rotation handled natively without configuring it yourself. If you're somewhere in between - running a little LinkedIn, mostly email, unsure how big you'll scale - start with whichever free trial answers your immediate question fastest, then reassess in a few months once you actually know your volume. Neither tool is going to embarrass you here - they're both built by people who understand deliverability, not generic all-in-one platforms that bolted cold email on as an afterthought. If you want more options beyond these two, Gold Penguin keep an updated list in its best cold email tools roundup, & its Instantly vs Lemlist comparison covers the tool Gold Penguin used before Instantly, if that history is useful context. Regardless of what you use, Gold Penguin hope this helped you figure out which camp you're in - best of luck & happy emailing!

QuickMail natively integrates with MailFlow, which is a free email warm-up tool that helps you nurture relationships with your current and prospective customers.