Newsletter platform reviewed: what holds up and what does not

What to take away

This article covers platform terms and business mechanics, not legal, tax or accounting advice. Commercial email duties sit with CAN-SPAM, state statutes and the platform's own terms. Confirm your position with a licensed attorney, and take tax questions to a CPA or enrolled agent.

Substack, Beehiiv, Ghost, Kit and Mailchimp reviewed

Every newsletter platform sells the same three things: a place to write, a way to send, and a way to get paid. They split on which of the three they charge for. Here is what holds up on each, and what does not.

Beehiiv charges a monthly fee, and its published terms set its share of subscription revenue below Substack's 10%. Its launch tier is free up to a subscriber cap in the low thousands, and paid tiers step with list size.

The growth tools are the draw: a referral program, an ad network, a sponsorship marketplace and a recommendations feed. The catch is the monthly fee, which arrives before ad revenue does, and the ad network's own share of any sponsorship it brokers.

It suits an operator who wants growth tools and will trade a slice of paid subscriptions for them.

Substack takes 10% of subscription revenue and pays out through Stripe. Starting is free and quick: no theme to configure, no hosting to buy, no payment setup beyond connecting an account. Stripe's standard US card rate, 2.9% plus 30 cents per charge, sits on top of that 10%.

It suits a writer who wants to sell a paid subscription this week. It gives up design control, the export is a file rather than a running site, and a large publication pays the 10% forever.

Ghost is open source. You can self-host it at no license fee and pay only for a server and an email sender, or buy managed hosting from Ghost(Pro).

Managed Ghost(Pro) plans have typically started near $9 a month for the smallest member tier and climbed with member count. Either way, Ghost takes nothing from subscriptions. You connect Stripe yourself and keep the rest.

It suits an operator with a developer, or one willing to pay for hosting, who wants to own the stack and the subscriber record outright. Self-hosting puts upgrades, backups and deliverability in your hands.

Kit, formerly ConvertKit, is built around creators and automation. Its free plan has covered lists up to 10,000 subscribers, and paid tiers above that step with subscriber count.

Automation and commerce are the draw: sequences, landing pages, tip jars and product sales that feed the list. The bill is the catch, because a free list of 40,000 names costs real money even when nobody pays you.

It suits a teacher, coach or consultant whose newsletter feeds a course or a service.

Mailchimp is the general-purpose option. It handles email marketing for any small business, with a free tier that caps at 500 contacts and 1,000 sends a month. Paid tiers commonly start around $13 a month at that size and climb with contact count.

The draw is breadth: templates, segmentation, a CRM, landing pages and ecommerce hooks in one account. A subscription paywall is not built in, so a paid publication needs an integration or a second tool to charge readers.

It suits a shop, clinic or trade business that sends a newsletter alongside selling something else. It is the weakest fit for a publication that lives on subscriptions.

Platform terms change. Check the pricing page before you commit, and treat every figure above as the published term on the day you read it.

Reading the rate card without fooling yourself

A revenue share and a flat fee are not comparable until you put your own numbers in them.

At a low paid count, a flat fee usually wins, because a percentage of a small number is a small number. At a high paid count the share grows past the fee, and the flat-fee platform gets cheaper every month. Run the arithmetic at your current count and at the count you expect in a year.

Take 500 paid subscribers at $8 a month, which is $4,000 gross. Substack's 10% is $400, and Stripe processing at 2.9% plus 30 cents takes roughly $266. That leaves about $3,334. A flat-fee platform charging $99 a month leaves about $3,635.

Payment processing is separate from the platform cut. Stripe and similar processors charge a percentage plus a fixed amount per transaction, which hurts most on low-priced subscriptions. A $5 monthly subscription loses a larger share to processing than a $50 annual one.

Consent, suppression and the CAN-SPAM floor

Consent is the record that decides whether you can email someone. Keep the signup source, the date and the exact wording the person agreed to. If a reader forwards your issue to a colleague, that colleague has not consented.

Suppression is the harder half. When someone unsubscribes, the address goes on a suppression list that every future send checks.

Skipping that check is how a business keeps mailing people who opted out, which is the fastest route to a spam complaint.

The FTC's CAN-SPAM compliance guide sets the floor: accurate header information, a subject line that does not mislead, identification as an advertisement where required, a valid physical postal address, and a clear opt-out that works. You are responsible for what a contractor sends on your behalf.

Free trials and recurring billing carry their own rules. The FTC's recap of its ROSCA case against a risk-free trial is blunt about it: disclose the material terms before you take card details, get express consent before the first charge, and make cancelling as easy as signing up.

Colorado and California add their own privacy duties on top.

The production week, in order

A newsletter is a weekly deadline that never moves. The work splits into steps that each need a named owner.

Step three is the one operators skip under deadline pressure. It is also the one that generates complaints.

Sponsorship slots and the rate card

Selling a slot is a pricing decision before it is a sales decision. Set the rate on a number you can defend: cost per thousand opens, or a flat fee tied to the audience size you can evidence.

Small trade newsletters typically quote somewhere between $20 and $50 per thousand opens. Because image preloading inflates open counts, quote on clicks or a verified subscriber count where you can.

Sponsorship contracts with no cancellation terms are the ones that end in an argument.

Disclose the paid relationship. The FTC's advertising guide for small business covers both halves: claims must be truthful and supported, and a material connection between you and the sponsor has to be clear to the reader. A label at the top of the section is the usual fix.

Track each sponsor's renewal date in the same place you track your own subscriptions. A sponsor who renewed twice is worth more than a new one, and the renewal is the moment the rate card gets tested.

Numbers that flatter, and numbers that do not

Open rate is the most misread figure in the business. Apple's Mail Privacy Protection preloads images for a large share of recipients, which registers as an open whether or not a person read anything.

A rising open rate can mean your list got quieter, not better. Click rate is harder to fake because it needs a deliberate tap. Watch it against the previous four issues rather than against an industry average you cannot verify.

Unsubscribe rate tells you about fit. A spike usually follows a change in subject matter, a change in send frequency, or a list you bought or imported.

Churn on a paid list is the number that decides whether the business works. If paid subscribers leave faster than new ones arrive, growth tools only delay the problem.

Keep your own copy of subscriber counts and revenue. The platform's dashboard is a view, not a record, and it disappears the day you switch.

Where the operation breaks

The failures repeat, and they are worth naming before they happen to you.

A list that stalls after week one usually means the signup ask was vague, or the first issue did not match what the signup page promised. Fix the promise before you buy traffic.

A sponsorship contract with no cancellation terms turns a missed send date into a refund argument. Put the terms in writing first.

Analytics that flatter show a rising open rate and a flat click rate. When those two diverge, trust the click.

An expansion plan that collapses on contact with production capacity is the most common one. Adding a second weekly issue doubles the writing, editing and send work, and the platform fee does not care.

Test the schedule for four weeks before you sell it to a sponsor.

Account access is the quiet risk. Give each person their own login, turn on multifactor authentication, and remove contractor access the week the contract ends. The NIST small business quick-start guides are a free starting point for that work.

Setting it up without rebuilding later

The order matters more than the tool. Decide what the newsletter is for, who pays for it, and how you will know it worked, then pick the platform that fits those answers.

Work through the newsletter platform setup checklist before you import a list or connect a payment account. Getting the sending domain, the physical address and the suppression list right at the start saves a migration later.

Keep a short decision log: the assumption, the evidence, the choice, the owner and the review date. When you change platforms, that log is the only thing that explains why the last one was chosen.

Common questions

Which platform is cheapest for a free list?

Ghost, if you have the technical time, because a self-hosted install has no license fee and the monthly cost does not move with subscriber count.

Kit and Mailchimp both step up as the list grows, so a 40,000-name free list costs real money on either. Beehiiv and Substack charge little until you start selling subscriptions, then take a share.

Do I need a lawyer to sell sponsorship slots?

For a one-off slot with a small sponsor, a clear written agreement covering the send date, placement, fee and cancellation may be enough.

For recurring contracts, exclusivity clauses or anything involving regulated products, have a licensed attorney review the terms. This article cannot tell you what your contract should say.

What happens to my subscriber list if I switch platforms?

You export a file, usually CSV, and import it into the new platform.

What does not travel is the sending history, the suppression list and the reputation your sending domain built. Plan the switch for a quiet week, warm the new domain, and keep the old platform running until the new one delivers cleanly.

How do I know if the newsletter is working?

Pick two numbers and watch them for a quarter: click rate per issue and paid churn. Click rate tells you whether readers act. Churn tells you whether they stay.

Open rate alone will mislead you, because image preloading inflates it.