HubSpot vs Mailchimp: Choosing Marketing Software

I get asked to sit in on software decisions fairly often, and then I get to watch the consequence of those decisions on the invoice eighteen months later. That second part is where the useful lessons live.

The search that leads to this page usually happens for one of two reasons. Either the list has outgrown a free tier and the next plan looks expensive, or a spreadsheet holding the sales pipeline has quietly become business critical and the owner has started to worry about it.

These are two different products with two different billing models, and most of the comparisons I read spend their time on feature lists rather than on what you will actually pay and what the change will cost you in your own time. That is the comparison worth making, so that is what this is.

The decision behind the search

What most small businesses are really buying

When a business compares these two platforms, it is usually trying to solve one of four problems: send email reliably to a list that has grown, keep track of who has enquired, know which stage each deal is at, or stop paying four subscriptions to do a job that one platform could do.

Notice that only the first is genuinely about email. The rest are about the shape of the business and how it sells, and that is the part that should decide the choice.

Where the comparison usually goes wrong

Three mistakes show up again and again. Comparing the entry plan against a plan that includes the CRM. Comparing a contact count that includes everyone you have ever met against a contact count that includes only the people you email. And comparing subscription prices while ignoring the twenty hours a month someone will spend doing the work by hand in the cheaper tool.

Any comparison that does not deal with those three is a brochure, not a decision tool.

What a small business needs from email marketing

Sending, templates, scheduling and list basics

Underneath the packaging, you need a tool that sends reliably, keeps a clean list, lets you build a decent looking email from a template without breaking anything, schedules sends, handles signup forms on your site, and reports on opens, clicks and unsubscribes in a way you can actually read.

Both platforms do all of that. The differences at this level are about interface taste and how much patience your team has, not about capability.

The features you will actually use in year one

Be honest about this one. Most small businesses use a handful of newsletter sends a month, a welcome email, a form on the website, and a simple segment such as customers against enquiries. Features beyond that are usually bought rather than used, and they sit in the invoice for years before anyone logs in to switch them off.

Write down the five tasks your team will actually perform in the next twelve months. Then check both platforms against that list, not against their feature pages.

What a small business needs from a CRM

Contacts, deal stages and pipeline visibility

A customer relationship management system does one job that matters: it keeps the full history of a contact, and the state of every deal, in one place that more than one person can see. Calls, emails, meetings, quotes and outcomes, attached to a person and a value.

The value is not in the software. It is in the weekly conversation where you find out that eleven quotes worth real money have had no follow up in three weeks.

The point where a spreadsheet stops working

A spreadsheet is a perfectly good pipeline until roughly the point where two people need to update it in the same week, or where you cannot answer "what happened with that enquiry from March" without searching an inbox.

That is the honest trigger for buying a CRM. Not the size of the business, and not the size of the contact list. It is the number of people touching the pipeline and the number of steps between an enquiry and a decision.

How each platform charges you

Billing by contact count and monthly sends

Mailchimp bills on a contact count that is broader than most owners expect, and the tier also sets how many emails you can send. Per Mailchimp's pricing plan documentation, "Subscribed, unsubscribed, and non-subscribed contacts are included in your contact count." Per the pricing tiers documentation, "The tier you choose includes a set number of contacts and monthly email sends, and determines your base pricing."

The practical consequence is that a list carrying years of unsubscribes can push you into a higher tier for people you will never email again. It is one of the simplest cost reductions available, and it takes an afternoon.

Marketing contacts and automatic tier upgrades

HubSpot splits the difference by separating the database from the billable part of it. Per the HubSpot knowledge base on marketing contacts, "Only marketing contacts count toward your contact tier and impact the cost of your subscription." The same page adds that "Any contacts you don't plan on marketing to can be set as non-marketing contacts, which don't count toward your contact tier, and you aren't charged for them."

That is genuinely useful for a business with a large database it does not mail. The catch is what happens at the boundary. Per HubSpot's documentation on marketing contact billing, "If you exceed your current contact tier by adding marketing contacts, your account will be upgraded to the next contact tier and you'll be charged accordingly until your next renewal date." The same page states that "contact tier upgrades occur automatically and cannot be prevented once the limit is exceeded."

In plain terms: contact hygiene is a billing task as well as a marketing one, and it is worth setting a maximum marketing contact number before a large import rather than after the upgrade lands.

Total cost of ownership over three years

The invoice versus your own hours

The subscription is the visible cost. The invisible one is the time your team spends making the platform behave: cleaning lists, exporting and reimporting, building a workaround for the pipeline, copying data between two tools that were meant to be connected.

Put an hourly rate on that time, even a rough one. A platform that costs a day a month of manual work is not the cheaper option, and that calculation usually changes the answer more than any discount does.

The add-ons that show up after month six

Practical list for the modelling: a CRM seat for the second person who needs access, extra sends when a campaign runs long, a payments or automation add on, a template or landing page tool you end up needing, and the migration you eventually pay for in either cash or weekends.

Whatever number you model, treat it as a range and work out what the tool stack should cost you next to the rest of your marketing budget rather than in isolation.

Migration risk and what actually moves

Lists, tags, templates and historical data

Contact records and audiences move reasonably well. Tags and segments move with varying fidelity depending on how they were built. Templates, historical reporting, signup forms and anything automated rarely move cleanly, and integrations have to be rebuilt one by one.

Before you commit, run a test export and open the file. Count the contacts, check that custom fields came with their values, and see whether the tags you rely on are present and named the way you expect.

What you lose and how to sequence the move

Plan a migration as a project with a cutover date rather than a task someone does on a Friday. Export full contact data before cancelling anything. Keep the old platform paid for one overlap month. Send a test campaign from the new platform to your own team before the first real one goes out.

If your forms feed the old platform, change them in the same week as the cutover, otherwise your enquiries split across two systems and nobody notices for a month.

Which one fits which business

When a simple email platform is the right answer

If your marketing is a monthly newsletter, enquiries are handled in one inbox, one person owns marketing, and there is no sales pipeline with stages, buy the simpler tool and put the difference into something that produces demand.

There is no shame in this answer. It is the right answer for more businesses than the software industry would have you believe.

When a connected suite earns its price

A suite starts to earn its cost when you have a pipeline with stages, more than one person touching leads, a need to see a contact's whole history in one place, and a real cost attached to missing a follow up.

Notice the pattern. You buy the capability once the process exists, not before. Buy the suite to support a process you already run and it looks expensive for a year. Buy it to create a process nobody has agreed to, and it stays expensive forever.

A decision framework you can run in an afternoon

• Count the contacts you genuinely market to, in the last twelve months, not the number in the database
• Model the cost at that number, then at that number plus fifty per cent
• List the five email tasks your team actually performs, and check both platforms against them
• Write down how many people touch the pipeline and whether it needs stages
• Estimate the monthly hours each option will take, and put a dollar value on them
• Run a test export from your current tool and inspect the file
• Add the migration cost, in cash or weekends, to the three year total

Whoever wins that exercise is the right answer for your business, whether or not it is the brand you arrived expecting to choose.

If you would rather have someone sit in the middle of it, getting the tooling decision right for your business is work I do often, and an audit that reviews the stack you already pay for is usually the cheapest way to find out what you can switch off. You can also ask which platform suits your list and pipeline and get a straight answer based on your numbers rather than a comparison table.

Frequently asked questions

Is HubSpot more expensive than Mailchimp for a small business?

It depends on what you are asking each platform to do, and the honest answer is that the comparison is not like for like. Mailchimp bills on a contact count that includes subscribed, unsubscribed and non-subscribed contacts, and its tier determines both the contacts you can store and the monthly sends you get. HubSpot's entry tiers include a CRM, and its marketing tiers bill on marketing contacts only, so a business with a large database it does not email may be charged very differently by each platform.

What happens if I go slightly over my contact tier?

On HubSpot, exceeding your tier by setting more contacts as marketing triggers an automatic upgrade to the next tier. HubSpot's own documentation says tier upgrades occur automatically and cannot be prevented once the limit is exceeded, with charges applying until your next renewal date. That makes contact hygiene a billing task as well as a marketing one, and it is why setting a maximum marketing contact number is worth doing before a big import.

Does Mailchimp charge for people who have unsubscribed?

Yes, unless you remove or archive them. Mailchimp states that subscribed, unsubscribed and non-subscribed contacts are all included in your contact count, so a list that has collected years of unsubscribes can push you into a higher tier for people you will never email again. Reviewing archived and unsubscribed contacts before choosing a tier is one of the simplest cost reductions available.

What do I actually lose if I migrate?

Usually less than owners fear on the list itself, and more than they expect on the surrounding data. Contact records, tags and audiences move with varying fidelity, while template designs, historical reporting, signup form integrations and the automations you built rarely transfer cleanly. Plan a migration as a project with a cutover date, keep the old platform paid for one overlap month, and export your full contact data before you cancel anything.

Should I choose on price or on features?

Neither alone. Choose on the contact number you genuinely market to, model the cost at that number plus your expected growth over three years, then add the hours your team will spend on setup, list hygiene and workarounds. A cheaper platform that costs a day a month of manual work is not cheaper. The decision framework above exists to make those two costs visible side by side.

Do I need a CRM at all if I only send email newsletters?

Not necessarily. If your marketing is a monthly newsletter and enquiries are handled in your inbox, a simpler email platform is usually the right answer and a suite is overkill. A CRM starts earning its place when you have a sales pipeline with stages, more than one person touching leads, or a need to see a contact's full history in one place. Buy that capability when the business has the process for it.