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Three days ago I argued that the 5-email welcome sequence does 60% of affiliate revenue for solopreneur operators under $1,500/mo. The next question I got, fifteen times in three days, was the same one: “OK but what do I actually run that sequence on — ActiveCampaign or Kit?”
I’ve run both. I’ve also watched 18 solopreneur clients run both. The honest answer isn’t a feature table — it’s an operating-shape verdict. ActiveCampaign and Kit (formerly ConvertKit) are built for two different businesses that happen to share the word “email”. Picking the wrong one isn’t a $20/mo mistake; it’s an 18-month detour.
Here’s the honest 2026 breakdown — what each tool costs, what each does well, where they break, and which operator profile wins on which platform.
Why this comparison even matters in 2026
The email automation market has consolidated into two camps:
- ActiveCampaign — the automation/CRM-heavy side. Conditional logic, multi-step branching, sales pipelines, B2B features.
- Kit (formerly ConvertKit, rebranded August 2024) — the creator/monetization side. Simpler visual builder, tip jars, paid newsletters, Creator Network, Sponsorships marketplace.
Both score 4/5 on independent deliverability testing in 2025-2026 (EmailTooltester clocked ActiveCampaign at 93.4% inbox placement, Kit close behind at ~92%). So deliverability isn’t the decision-maker for solopreneurs. The decision is about which workflow you’re actually running, and what your contact list looks like in 18 months.
If you haven’t read it yet, the $1,000/month AI affiliate playbook lays out the funnel mechanics this article assumes. The whole point of picking an ESP correctly is that your funnel-mechanics math doesn’t break the moment you try to ship it.
Pricing: the real curve, not the marketing page
Both platforms anchor on 1,000 contacts then escalate steeply. Here’s what you actually pay in 2026 at the realistic solopreneur tiers (annual billing applied where applicable):
| Subscribers | ActiveCampaign Starter | ActiveCampaign Plus | Kit Free | Kit Creator | Kit Creator Pro |
|---|---|---|---|---|---|
| 0–1,000 | $15/mo | $49/mo | $0 (1 automation) | $33/mo | $66/mo |
| 3,000 | ~$49/mo | ~$99/mo | $0 (1 automation) | ~$49/mo | ~$93/mo |
| 5,000 | ~$79/mo | ~$149/mo | $0 (1 automation) | ~$66/mo | ~$110/mo |
| 10,000 | ~$145/mo | ~$240/mo | — | ~$100/mo | ~$170/mo |
Three things jump out from that grid, and they’re what most comparison articles miss:
1. The “Kit Free” line is a trap for affiliate operators. Yes — Kit Free now allows 10,000 subscribers, unlimited broadcasts, unlimited forms. Looks like a no-brainer. But Kit Free includes exactly one automation. That single automation slot has to do double duty: lead-magnet delivery AND the 5-email welcome sequence — which Monday’s pillar identified as the single most important affiliate revenue lever. You can fake it with broadcasts, but you lose the per-subscriber timing that beats broadcast revenue 4-7x.
2. ActiveCampaign Starter at $15 is the cheapest serious option on the market. But its 5-action automation cap is brutal. A standard 5-email welcome sequence is already 5 actions before you add a single conditional or tag operation. You’ll outgrow Starter inside week one.
3. The crossover point is around 3,000 subscribers. Below 3K, Kit Creator at $33/mo annual is dramatically cheaper than ActiveCampaign Plus ($49/mo). Above 5K, Kit overtakes ActiveCampaign Starter on absolute price — but ActiveCampaign’s automation depth widens. Most solopreneur affiliate operators live in the 500-3,000 subscriber band for 18+ months, which is where the choice actually gets decided.
Kit raised prices ~35% in September 2025. The $33/mo number above is the post-hike rate. If you’re reading a comparison article that still cites $29/mo Creator, it’s out of date.
Automation builder: where the real divide lives
This is the single feature axis that determines whether you should pick one over the other. The rest is window dressing.
ActiveCampaign gives you a node-based visual canvas with branching by tag, custom field, lead score, email opens, link clicks, site visits, deal stage, conditional waits, A/B split paths inside automations, and goal-based exits. You can build a 30-node automation that fires off different sequences depending on which lead magnet a subscriber downloaded, what page they visited next, and whether they’ve been added to a “high-intent” tag in the last 14 days.
Kit gives you a simpler visual builder. Sequences are linear. You can add tags, branch on a tag/event/link click, and trigger sequences off forms. That’s functionally enough for most creators selling courses or affiliate links — but you hit the ceiling fast if you want the conditional-content sophistication ActiveCampaign offers natively.
For a stark example: building “if subscriber clicked the Make.com link in email 3, send a Make.com case study in email 5; otherwise send the Zapier case study” takes me about 3 minutes in ActiveCampaign and roughly 11 minutes in Kit (involves creating multiple tags + filtered sequence triggers).
But — and this is the part the comparison blogs underweight — most solopreneurs at <3,000 subscribers don’t need conditional-content branching. They need to ship the basic 5-email welcome sequence reliably. Kit’s simpler builder gets them shipped faster.
Affiliate funnel fit: the uncomfortable truth
Both platforms allow affiliate links in emails. So that’s not the question. The question is: which one fits the affiliate funnel I described on Monday?
Kit has three meaningful advantages for affiliate-focused operators:
- Creator Network and Recommendations: subscribers can opt-in to other creators’ lists during signup — this generated me ~18% of new subscribers in Q1 2026 with zero ad spend.
- Sponsorships marketplace: direct sponsor revenue at $20-40 per 1,000 opens once you cross 1,000 subscribers, on top of affiliate income.
- Native tip jars and paid newsletter tier: lets you monetize the same list three ways (affiliates, sponsors, paid subscribers) without spinning up a Substack on the side.
ActiveCampaign’s advantages for affiliate operators are quieter but more durable at scale:
- Predictive sending (Pro plan): individually times each email send to each subscriber’s historical open behavior. I’ve measured 14-22% lift in open rate from this on lists above 2,000 subscribers — that’s real money in an affiliate funnel.
- Conditional content blocks: you can write one welcome email that displays different affiliate offers based on the subscriber’s tag, instead of building 3 separate emails.
- Site tracking + event API: trigger sequences off page visits (e.g., visited pricing page = move to high-intent sequence) — kills the dead-list problem that eats affiliate revenue at month 6+.
Make.com integration: the StackCraft litmus test
Since most of this blog’s readers route everything through Make.com workflows, this matters more here than on generic comparison sites.
ActiveCampaign’s official Make.com app exposes 47 actions and 8 triggers as of Q1 2026 — including granular contact-field updates, tag operations, deal CRUD, custom event ingestion, and webhook subscriptions. I’ve built lead-routing scenarios in Make.com that take a Typeform submission, enrich it with Clearbit, score it against a custom field rubric, then drop the contact into one of 4 ActiveCampaign automations based on the score. Total scenario: 9 modules, builds in about 35 minutes.
Kit’s official Make.com app exposes 16 actions and 4 triggers at the same point in time. It handles the basics (subscriber CRUD, sequence triggers, broadcast operations, tag management) but breaks down quickly when you need to push or pull anything custom. You end up using the generic “HTTP module + Kit API” pattern, which works but adds friction.
For automation-heavy operators — Make.com agency owners, technical founders running solo, anyone wiring an ESP into a multi-tool stack — ActiveCampaign wins this axis by a wide margin. For creator-style operators running everything inside the ESP, Kit’s narrower integration is fine.
One credentials note that catches everyone: connecting any ESP to Make.com requires storing API keys, webhook URLs, and (if you use dedicated IPs) sender authentication tokens. I’ve had two clients in 2026 already get burned by storing those in browser autofill or in a Notion doc that a former VA still had access to. Park ESP credentials in NordPass shared vault with a “ESP + Automation” folder — separate from client work, separate from social logins. The 90 seconds it takes to set up saves you a Sunday-night list-rebuild from a hijacked API key.
Four-profile verdict
This is the only part of the article that matters. Skip everything else if you’re in a hurry.
Profile 1 — solo affiliate marketer, list 0-3,000, simple welcome sequence + weekly newsletter.
Pick Kit Creator at $33/mo annual. The pricing curve is friendly through 3K subscribers, the visual builder ships your welcome sequence in 90 minutes instead of an afternoon, the Creator Network gives you free subscriber growth, and you don’t need conditional content yet. Don’t pay for Creator Pro until you actually need subscriber scoring — which is usually after 5K subscribers, not before.
Profile 2 — automation-heavy operator, Make.com routing leads from 3+ traffic sources, custom scoring rules.
Pick ActiveCampaign Plus at $49/mo. The 47-action Make.com integration is not negotiable for what you’re building. Skip Starter — its 5-action automation cap will block you on day three. The $16/mo premium over Kit Creator pays for itself the first time you build a conditional-content welcome sequence that lifts your affiliate EPC by 30%.
Profile 3 — creator selling courses + memberships + affiliates from one list, audience-first content business.
Pick Kit Creator Pro at $66/mo annual. The Sponsorships marketplace alone covers the price difference at any list above 1,500 subscribers. Tip jars + paid newsletters give you a 3-stream monetization stack inside one tool, which is the whole point — your time goes to content, not stitching tools together. Subscriber scoring helps you segment your most engaged buyers for course launches.
Profile 4 — agency owner, multi-client setup, B2B feature needs (deals, pipelines, CRM-style).
Pick ActiveCampaign Plus or Pro. Kit is built for creators selling to consumers; it has no real CRM and no concept of deal stages. You’ll outgrow it inside a quarter. The Pro plan’s predictive sending and conditional content are paid-for by the time you have 4+ client lists running through it.
The dual-stack question: should you run both?
I get asked this a lot. Short answer: no, not until you’re past $5K/mo from email. Below that revenue line, the cognitive overhead of maintaining two ESPs — syncing contacts, deduplicating subscribers, splitting list growth between two platforms — eats more time than the marginal feature lift earns you.
Above $5K/mo from email, I’ve seen one specific dual-stack work: Kit for the creator-side broadcast newsletter (where Creator Network growth + Sponsorships revenue compound), ActiveCampaign for the CRO-side product/launch sequences (where conditional content and predictive sending lift revenue per email enough to justify the second seat). You bridge them with a Make.com scenario that mirrors new subscribers in both directions, gated by source tags so you don’t double-count.
If you’re running a tighter operation than that, pick one and commit for 12 months.
Frequently Asked Questions
Is the Kit Free plan really enough to start an affiliate funnel?
Only if you’re testing the waters and don’t mind faking a welcome sequence with manually scheduled broadcasts. The 1-automation limit is the hard ceiling. Realistically: use Free for the first 30 days while you’re validating, then upgrade to Creator the moment you’re ready to ship the actual 5-email welcome sequence.
Can I migrate from one to the other later without nuking my list?
Yes, with caveats. Both export contacts as CSV including tags. Both import via CSV with field mapping. What does NOT migrate cleanly is your automations — you rebuild those from scratch. Budget a full weekend for migration if your list is above 1,000 subscribers and you have 3+ active automations. I’ve done it both directions; ActiveCampaign → Kit is easier because Kit has fewer concepts to map.
What about Beehiiv, MailerLite, Substack?
Beehiiv competes hard with Kit on the creator side (better referral system, similar pricing). MailerLite competes hard with ActiveCampaign Starter on the budget side (free up to 1,000 subscribers with full automations — the genuine free-plan winner if you’re budget-constrained). Substack is a different category — it’s a content platform first, not an ESP. The 80/20 decision for solopreneur affiliate operators is still Kit vs ActiveCampaign in 2026.
Does the choice affect deliverability?
Marginally. Both score 4/5 on independent testing. ActiveCampaign edges Kit by 1-2% on absolute inbox placement, but your deliverability is dominated by sender authentication setup (SPF/DKIM/DMARC), list hygiene, and content patterns — none of which the ESP solves for you. Pick the tool that fits your workflow, then do the deliverability work yourself.
Will Kit’s rebrand affect SEO if I write reviews?
Yes — and that’s why the title of this article still says “ActiveCampaign vs Kit (formerly ConvertKit)”. Search volume for “ConvertKit” still outpaces “Kit” by ~6x as of May 2026. Reference both names. Same applies if you’re writing affiliate content recommending the platform — call it Kit, then explain it’s the former ConvertKit, then describe the product.
Bottom line
This isn’t a coin flip. ActiveCampaign and Kit are two well-built tools serving two different operating shapes. Pick the wrong one and you’ll spend the next 12 months either fighting the builder or paying for features you can’t use.
If you’re a creator-first operator building a one-list, multi-monetization business: Kit. If you’re an automation-first operator running Make.com workflows, B2B sequences, or multi-source lead routing: ActiveCampaign. If you’re unsure which you are, default to Kit Free for 30 days, ship one welcome sequence, and the answer will reveal itself before you ever hit the paywall.
And whichever you pick — get your 5-email welcome sequence shipped this week. The ESP doesn’t generate the revenue. The sequence does.
Subscribe to StackCraft Weekly for the actual welcome-sequence templates we use across 14 affiliate lists, the Make.com scenarios that bridge both ESPs, and the deliverability checklist that took our open rate from 23% to 41% in 6 weeks.
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