DripDraft — our pick (and yes, it's ours)
Full disclosure: DripDraft is our own tool, so consider us biased — but it earns a place here for one reason. The tools compared here help you sequence and send; the real grind is writing a genuinely personal follow-up for every prospect without losing your morning. DripDraft drafts each one in your voice and lands them in your Gmail as drafts you review and send — never auto-blasted, which protects your deliverability and sender reputation. Pair it with Hunter.io to find and verify addresses and you've got the whole loop — find, write, follow up. Free plan: 10 campaigns/month. Start free →
Quick Comparison Checklist
Before diving in: three of the most-cited comparison articles for these two tools are written by direct competitors — Snov.io, La Growth Machine, and GrowLeads. That doesn't make their data wrong, but it's worth knowing whose hands are on the scale. We've cross-referenced all claims below against neutral and platform-direct sources.
Pricing — and what you actually pay
- Instantly Growth plan: $47/mo billed monthly, or ~$37.60/mo billed annually. That's the Outreach product only — cold email sending and warmup. The lead database (SuperSearch) is a separate add-on starting at an additional $47/mo. If you want both, budget at least $94/mo on annual billing for a solo operator.
- Smartlead Basic plan: $39/mo. Covers 2,000 active leads and 6,000 emails/month with unlimited mailbox connections. Per CheckThat.ai, this tier is explicitly described as a testing sandbox — "too restrictive for actual operations or team use." It also has no API access, no webhooks, and no white-labeling.
- Smartlead Pro plan — the real agency tier: $94/mo. This is where API access, white-labeling, and 30,000 active leads unlock. White-labeling includes 1 free client; each additional client costs $29/mo. An agency running 10 clients pays $94 base + $261 in per-client fees = $355/mo. That's the honest number.
Cost per mailbox at scale
- Smartlead's unlimited-mailbox model does create real savings at scale. Agencies managing 10+ mailboxes save 60–82% annually compared to per-mailbox alternatives, according to CheckThat.ai's analysis. On the Basic plan, that works out to roughly $3.90 per mailbox monthly (derived by dividing the $39 plan cost across 10 mailboxes) — but remember, Basic is a testing tier, not an operational one.
- Instantly charges no per-mailbox fees either. All paid Outreach plans include unlimited email accounts. The cost difference at scale shows up in contact and send-volume limits, not mailbox count.
Agency features
- Smartlead is purpose-built for multi-client agency operations. The master inbox aggregates replies from every mailbox into one workspace, tagged by client and campaign. White-label client portals and sub-accounts are available on the Pro plan and above only — not on Basic.
- Instantly has limited native multi-client management. Account switching is largely manual, and there's no native dashboard rebrand. It works well for a solo founder or a small team running their own outreach, less so for an agency serving multiple external clients.
Channel support — what both tools actually do
- Both Instantly and Smartlead are email-only platforms. Neither offers native LinkedIn automation. La Growth Machine, which tested all three platforms across 90 days of live campaigns, confirmed that LinkedIn automation = No for both Instantly and Smartlead in its feature comparison. Smartlead supports email plus optional integrations for other channels via third-party tools, but there is no built-in LinkedIn sequencing.
- If your outbound strategy requires LinkedIn and email in the same native workflow, you'll need a different tool entirely.
Lead database
- Instantly has a built-in B2B contact database (SuperSearch) with 450M+ contacts — but it's a separate paid product, not bundled with the Outreach plan. Budget accordingly.
- Smartlead does not include a native lead database. You'll need an external data source regardless of which plan you're on.
Ease of use and setup
- Instantly is faster to get started. Import a list, connect inboxes, build a sequence, and you're sending within an hour. Clean UX, no steep learning curve.
- Smartlead has more operational depth — and more complexity to match. The master inbox and multi-client architecture take longer to configure, but that investment pays off if you're running dozens of client accounts.
Who should pick which
- Solo founders and small sales teams doing their own outreach: Instantly's Growth plan ($47/mo monthly or ~$37.60/mo annual) is the faster, simpler path. Add SuperSearch if you need leads from the platform itself.
- Agencies managing multiple clients: Smartlead Pro ($94/mo) is the realistic starting point once you factor in white-labeling and operational volume. Budget $29/client/month for each client beyond the first included one.
- Anyone who needs LinkedIn + email natively: Neither platform covers this. Look elsewhere.
Sources
- Weezly — Instantly Pricing 2026: Every Plan Explained
- SalesHive — Smartlead Vendor Review
- GrowLeads — Instantly vs Smartlead Agency Comparison 2026 (Note: GrowLeads is an outbound agency with potential commercial interest in this comparison.)
- La Growth Machine — Instantly vs Smartlead vs LGM 2026 (Note: La Growth Machine is a direct competitor to both platforms and promotes itself as the superior option in this article.)
- Snov.io — Smartlead vs Instantly Comparison (Note: Snov.io is a competing cold email and lead generation platform.)
- CheckThat.ai — Smartlead Pricing 2026: Plans, Costs & Real Savings