ClickFunnels + ConvertKit + Calendly + Zapier: what that stack actually costs

If you sell something online as a one-person business, there is a good chance your setup looks like this: a funnel in ClickFunnels, an email list in ConvertKit (now called Kit), a booking link in Calendly, and Zapier quietly passing leads between them.

Each tool is good at its job. That is not the problem. The problem is that nobody ever shows you the whole bill in one place, and the bill is more than the four plan prices added together.

This page does that math with each vendor’s own published prices as of October 2026. Then it covers the costs that never show up on an invoice, who should keep this stack (plenty of people should), and when it makes sense to run the business from one place instead.

For one person on monthly billing with about 1,000 email subscribers, the four plan prices alone come to about $178 a month (about $144 a month if you prepay annually). As your list and lead flow grow, a realistic version of the same stack lands around $270 a month or more before card processing, add-ons, or your time.

That lines up with what solo sellers report. A Systeme.io switcher on r/YouTubeAffiliates described a ClickFunnels, Kajabi, SamCart, ConvertKit, Calendly, and webinar-tool stack that cost them $300 to $500 a month “just to run the basics” (r/YouTubeAffiliates).

Where these numbers come from: ClickFunnels pricing, Kit’s help center on Creator vs Creator Pro, Calendly pricing, and Zapier pricing. Vendors change prices, so check each page before you decide.

The entry bill is the cheapest this stack will ever be. Two of the four tools price on growth:

• Kit prices by subscriber count. Creator is $39 a month at 1,000 subscribers, $59 at 3,000, $89 at 5,000, and $139 at 10,000, on monthly billing (EmailToolTester’s 2026 Kit pricing table; Kit’s own pricing page uses a slider).
• Zapier prices by tasks. A task is one successful action step. Triggers do not count, but every “add to Kit,” “tag this person,” or “send me a notification” step does. The Professional plan is $29.99 a month for 750 tasks and $73.50 a month for 2,000 tasks on monthly billing (Zapier pricing).

Here is a worked example, so you can see how fast tasks add up. This is an illustration, not a quote from anyone’s account: a Zap that takes a new ClickFunnels opt-in, adds it to Kit with a tag, and pings you uses about 3 tasks per lead. At 750 tasks a month, that is roughly 250 leads before you hit the cap, and that is your only Zap.

And if you go over your Zapier tasks with pay-per-task turned on, extra tasks are billed at 2.5 times your base task rate on monthly plans (1.25 times on annual), and Zaps pause entirely once usage reaches 3 times your plan (Zapier pricing, “Exceeding your task limit”). Turn pay-per-task off and your Zaps simply stop until next cycle, which is how a lead quietly never gets the welcome email.

Before you change anything, check what you already own. On its Launch plan, ClickFunnels lists email marketing for up to 10,000 contacts and 50,000 emails a month, plus a CRM pipeline. Calendars are listed starting on the Scale plan at $197 a month (ClickFunnels plan comparison).

So a lot of solo sellers are paying ClickFunnels for email they do not use, paying Kit for email they do use, and paying Zapier to keep the two in sync. That is not anyone being dishonest. It is what happens when tools get added one at a time, each for a good reason, and nobody steps back to look at the whole thing.

The subscription total is the part you can see. The other part is what we call the glue tax:

1. Setup and re-setup hours. Every tool has its own editor, its own tags, its own idea of what a “contact” is. A post on r/IMSuccessConnection described signing up for ClickFunnels, ConvertKit, Teachable, Zapier, Calendly, Stripe, and forms, then spending “$300/month on software I barely understood” and watching “1,000 YouTube videos” trying to connect it all. That post reads a bit promotional, so treat the specifics loosely. The pattern is the useful part.
2. Zapier babysitting. A field gets renamed, a filter stops matching, a connection expires. You usually find out when a customer tells you they never heard back.
3. Four places to look. Is this person a lead, a subscriber, or a booked call? The answer lives in three tools, and none of them knows what the others know.
4. Leaving is hard. Once your sequences, tags, and Zaps depend on each other, changing one tool means rebuilding the others. Creators moving off Kit have written about rebuilding automations and warming up deliverability again (r/beehiiv thread on moving from Kit).

We wrote the longer version of that story in The Frankenstack.

Honestly, a lot of people. Keep it if:

• Funnels are the business. You run several high-volume funnels, A/B test checkout pages, or run an affiliate program. ClickFunnels is built for exactly that.
• Courses or a paid community are your main product. ClickFunnels includes courses and community, and dedicated course platforms go deeper. Use a tool built for that job.
• Your newsletter is the product. Kit is one of the best tools for newsletter-first creators, and its free Newsletter plan covers up to 10,000 subscribers (with limits on automations and a required recommendations feature) (EmailToolTester).
• Your Zaps are stable and you like tinkering. If the glue rarely breaks and you enjoy building it, that is a real skill, not a problem.

And if cost is the only issue, you can go lean. Indie Hackers writer Alex Renn laid out a year-one stack of free Notion, free Cal.com, Stripe, and Carrd for under $50 a month (Indie Hackers). Runza Starter is $14 a month for a site on your own domain, contacts, invoices, and one-time email, so it fits that budget too; email sequences are on Pro.

The stack makes sense when each tool is a job you want to manage. It stops making sense when you are a coach, consultant, freelancer, or local service pro and what you actually need is simpler:

• a site with a landing page and a way to buy or book
• a list you can email, with a welcome sequence that actually sends
• a record of every lead and customer so follow-ups do not slip
• invoices and payment links that land in the same place

That is the job Runza is built for. Runza gives you Ace, an AI co-founder who does the work with you: building and updating your website, keeping customers and leads in one record, sending quotes, invoices, and payment links, and drafting and scheduling email, social posts, and bookings on a built-in booking calendar. You tell Ace what you are trying to do in plain English, and you approve before anything goes out.

The difference is not “four tools in one dashboard.” It is that there is no glue to maintain, because the booking, the lead, the email, and the invoice are already the same customer record.

Price is not the main point, and we would rather you decide on time and headaches than on a number. But it is fair to see both side by side.

Pull up your last three months of statements and run through this:

• List every tool you pay for and what job it does (funnel, email, booking, glue, CRM, invoicing).
• Mark any job you are paying for twice (for example, email inside ClickFunnels and in Kit).
• Check your Zapier task usage. Are you near the cap, or paying overages?
• Count how many Zaps broke or needed fixing in the last 90 days.
• Write down where a lead “lives.” If the answer is “it depends,” that is the glue tax.
• Estimate the hours per month you spend in settings instead of with customers.
• Decide which tools are the business (keep those) and which are just plumbing (candidates to cut).

Want a broader version? Our solopreneur essentials checklist covers the whole one-person company. Or run the free stack audit, which totals what your current tools cost in money and hours.

Still comparing? See the full compare hub, our solopreneur fit checks for GoHighLevel, HubSpot, and HoneyBook, or read why Runza. Coaches and consultants, start with /for/coaches and /for/consultants.