Kit (ConvertKit) vs Substack vs beehiiv
Creators building an audience face a fundamental choice between a full email marketing platform like Kit and pure newsletter tools like Substack and Beehiiv. This comparison clarifies when you need Kit's automation and segmentation power versus the simpler publishing-first approach of its rivals.
Quick Verdict
Best for most users: Kit (ConvertKit) — email marketing built for creators.
Kit (ConvertKit): Email marketing built for creators
Substack: The newsletter platform where writers build independent media businesses
beehiiv: The newsletter platform built for growth
Substack
The newsletter platform where writers build independent media businesses
4.4/5 Free
Feature Comparison
| Feature | Kit (ConvertKit) | Substack | beehiiv |
|---|---|---|---|
| Rating | 4.6/5 | 4.4/5 | 4.5/5 |
| Starting Price | $33/mo | Free | $39/mo |
| Free Plan | 10,000 subscribers | Unlimited subscribers, unlimited emails, all core features free — Substack only charges when you earn | 2,500 subscribers |
| Founded | 2013 | 2017 | 2021 |
| Email Templates | 50 | 1 | 20 |
| Integrations | 90 | 0 | 40 |
| Deliverability Rate | 98.2% | 95% | 98% |
| Marketing Automation | ✓ | ✕ | ✓ |
| A/B Testing | ✓ | ✕ | ✓ |
| Landing Pages | ✓ | ✕ | ✓ |
| Segmentation | ✓ | ✕ | ✓ |
| Drag & Drop Editor | ✕ | ✕ | ✓ |
| SMS Marketing | ✕ | ✕ | ✕ |
| Ecommerce Features | ✓ | ✕ | ✓ |
| API Access | ✓ | ✕ | ✓ |
| Multi-Language | ✕ | ✕ | ✕ |
| Web Push Notifications | ✕ | ✕ | ✕ |
| Live Chat | ✕ | ✕ | ✕ |
| Advanced Analytics | ✓ | ✕ | ✓ |
The Verdict
| Criterion | Weight | Kit (ConvertKit) | Substack | beehiiv |
|---|---|---|---|---|
| Starting Price | 30% | $33/mo | Free | $39/mo |
| Deliverability | 25% | 98.2% | 95% | 98% |
| Rating | 25% | 4.6/5 | 4.4/5 | 4.5/5 |
| Integrations | 10% | 90 | 0 | 40 |
| Free Tier | 10% | Yes | Yes | Yes |
Choose Kit (ConvertKit) if…
- + Best for solopreneurs
- + Best for coaches
- + Excellent creator ecosystem with built-in monetization
Choose Substack if…
- + Lowest starting price (Free)
- + Best for independent writers and journalists
- + Best for newsletter creators monetizing through paid subscriptions
Choose beehiiv if…
- + Best for newsletter creators
- + Best for media companies
- + Purpose-built for newsletter businesses
Kit (ConvertKit): Pros & Cons
Pros
- +Excellent creator ecosystem with built-in monetization
- +Intuitive visual automation builder
- +Generous free plan up to 10,000 subscribers
- +Strong deliverability rates
- +Creator-focused features like tip jars and paid newsletters
Cons
- −Limited email template design options
- −Gets expensive at higher subscriber counts
- −No SMS marketing capabilities
- −Basic reporting compared to competitors
- −No drag-and-drop email editor
Substack: Pros & Cons
Pros
- +Completely free to start with no upfront costs — zero barrier to entry with all core publishing features available immediately
- +Built-in audience discovery network with Recommendations and Notes driving organic subscriber growth (users report gaining 1,000+ subscribers through Recommendations alone)
- +True content ownership: creators can export their full subscriber list and content at any time to migrate elsewhere
- +Multimedia platform supporting newsletters, podcasts, video, livestreaming, Notes, and Chat communities in a single integrated experience
- +Strong reader engagement with genuine community interaction through comments, Chat, and Notes — higher engagement rates than typical social media platforms
Cons
- −The 10% platform fee plus Stripe's ~2.9% + $0.30 per transaction creates a 13-16% total take rate that becomes very expensive at scale (e.g., $1,300-$1,600/month on $10K revenue)
- −No email marketing automation, segmentation, A/B testing, or advanced personalization — all subscribers receive identical emails with no conditional logic
- −No public API and zero native third-party integrations — cannot connect to CRMs, e-commerce platforms, Zapier, or other marketing tools
- −Limited design customization with a single standardized template — no drag-and-drop editor, no custom HTML, and minimal branding options
- −Platform can remove content or delete accounts without notice, and customer support is difficult to reach for issue resolution
beehiiv: Pros & Cons
Pros
- +Purpose-built for newsletter businesses
- +Built-in ad network for monetization
- +Referral program to grow subscribers
- +Paid subscription support
- +Founded by ex-Morning Brew team
Cons
- −Limited to newsletter use case
- −Fewer templates than established tools
- −Smaller integration ecosystem
- −No SMS marketing
- −Relatively new platform (2021)