A client list can go quiet for months between projects; a newsletter is one of the few channels that keeps warming up leads in the background regardless of your current workload, and — unlike a marketplace profile — it's a list you actually own and can take with you. The category has split into two real approaches: platforms built for fast, discoverable publishing (Substack) and platforms built for ownership and monetization (Kit, Beehiiv). Freelancers usually want to know which one to start on, and when it's worth switching.
Coming from a consulting background, I default to evaluating pricing structure and long-term cost before comparing features line by line.
What matters for a freelancer's newsletter specifically
- How fast you can start — a newsletter that takes a weekend to configure is a newsletter that doesn't get written
- Whether you own the list, or a platform can quietly reduce your reach (more relevant than it sounds — see below)
- Cost as your list grows — free tiers and pricing structures diverge sharply once you pass a few thousand subscribers
- Whether it connects to what you sell — courses, paid consultations, or a paid subscription tier itself
Quick comparison
| Tool | Free tier | Monetization cut | Discovery features | Best for |
|---|---|---|---|---|
| Substack | Unlimited subscribers, free | 10% of paid subscription revenue | Strong (Notes, recommendations) | Fastest possible start, built-in discovery |
| Kit (formerly ConvertKit) | Up to 10,000 subscribers | ~3.5% + $0.30 on paid subscriptions | Weaker than Substack | Freelancers selling courses, downloads, or consultations off the list |
| Beehiiv | Up to 2,500 subscribers | 0% (own payment processing) | Strong growth/referral tools | Freelancers pursuing sponsorships as a revenue stream |
Substack — the fastest way to actually start
Substack's entire design philosophy is removing friction between having an idea and publishing it — sign up, write, hit send, with a webpage and archive generated automatically. For a freelancer who's been meaning to "start a newsletter" for a year without doing it, that low friction is worth more than any feature comparison. Its built-in discovery (recommendations, the Notes feed) can genuinely bring new subscribers with zero marketing effort, which no other platform on this list matches for free. The trade-offs are worth knowing upfront: a 10% cut of any paid subscription revenue, limited design customization, and — per widely discussed creator complaints — readers can "follow" without subscribing by email, and the platform has occasionally auto-adjusted email delivery settings in ways that quietly reduce a writer's actual reach.
Best for: freelancers who want to start writing today with zero setup, and don't yet have a specific monetization plan beyond building an audience.
Kit — best once the newsletter feeds something you sell
Kit (formerly ConvertKit) is built around the assumption that a newsletter is step one of a funnel, not the whole business — its automation and tagging exist specifically to move a subscriber toward a course, a paid consultation booking, or a digital product. For a freelancer whose newsletter is meant to eventually fill a calendar with discovery calls or sell a template pack, that connective tissue between "someone read this" and "someone bought that" is the entire point. Its free plan is genuinely generous (up to 10,000 subscribers with basic broadcasts), though the visual design options lean plain-text by default, which some freelancers find limiting and others find refreshingly focused.
Best for: freelancers whose newsletter exists to sell something specific — a course, coaching calls, templates — rather than just to stay visible.
Beehiiv — best if sponsorships are the goal
Beehiiv's standout feature is a built-in ad marketplace connecting newsletter writers with sponsors once a list reaches a meaningful size, alongside strong referral and growth tooling built by a team with direct newsletter-industry experience. Unlike Substack, Beehiiv takes no cut of subscription or sponsorship revenue directly — it monetizes through its own tiered pricing instead, which becomes a real cost once a list grows past the free tier's 2,500-subscriber cap.
Best for: freelancers building a newsletter specifically as a sponsorship revenue stream, once the audience is large enough to be sellable.
When to move off Substack
A common pattern among established freelance writers: start on Substack for the free, frictionless launch and built-in discovery, then migrate to Kit or Beehiiv once the list is large enough that the 10% revenue cut on paid subscriptions becomes a meaningful dollar amount, or once real ownership and design control start to matter more than easy discovery. There's no fixed subscriber count where this makes sense — it's the point where the platform's cut starts to feel larger than the value of staying. If you've narrowed things down specifically to Kit or Mailchimp, our dedicated Mailchimp vs Kit comparison covers a billing detail that changes the real cost more than the sticker price suggests.
Bottom line
If you haven't started a newsletter yet, Substack remains the lowest-friction way to actually begin, and its discovery features give a genuinely useful head start that a blank Kit or Beehiiv account doesn't. Once the newsletter has a clear job — selling something specific, or attracting sponsors — moving to Kit or Beehiiv respectively is worth the extra setup for the ownership and functionality gained. Whichever platform you pick, the actual writing is where an AI writing tool can help most — drafting faster without losing the voice that makes a newsletter worth subscribing to in the first place.
Pricing, revenue-share terms, and free-tier limits in this category change frequently. Confirm current terms directly on each platform's site before choosing.