Kit (ConvertKit) vs SendGrid: Full Comparison (2026)
Pricing, features, scores, and a clear verdict on which one is right for you.
The bottom line
Kit (ConvertKit) positions itself as "the creator marketing platform" while SendGrid goes after "email delivery api and marketing platform" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but Kit (ConvertKit) charges per contact while SendGrid charges per email — a meaningful difference for larger teams.
At a glance
| Kit (ConvertKit) | SendGrid | |
|---|---|---|
| Our score | 82/100 | 81/100 |
| Starting price | $39/mo | $20/mo |
| Free tier | Yes | Yes |
| Best for | The creator marketing platform | Email delivery API and marketing platform |
Pricing comparison
Calculate your cost
Feature comparison
core
| Feature | Kit (ConvertKit) | SendGrid |
|---|---|---|
| Email builder | Yes | No |
| Automation | Yes | No |
| A/B testing | Yes | No |
| Landing pages | Yes | No |
| Signup forms | Yes | No |
| Email API | No | Yes |
| SMTP relay | No | Yes |
| Webhooks | No | Yes |
| Templates | No | Yes |
| Analytics | No | Yes |
advanced
| Feature | Kit (ConvertKit) | SendGrid |
|---|---|---|
| SMS marketing | No | No |
| Social posting | No | No |
| CRM | No | No |
| Predictive analytics | No | No |
| Dedicated IP | No | Pro+ |
| IP warmup | No | Yes |
| Bounce management | No | Yes |
| Unsubscribe handling | No | Yes |
| Marketing Campaigns | No | Add-on |
integrations
| Feature | Kit (ConvertKit) | SendGrid |
|---|---|---|
| Shopify | Yes | No |
| WordPress | Yes | Yes |
| Zapier | Yes | Yes |
| Salesforce | No | Yes |
| Twilio | No | Yes |
| Node.js SDK | No | Yes |
Ratings breakdown
What the data tells us
How costs scale
SendGrid's pricing curve is steeper — the jump from its entry plan to its top tier is more dramatic than Kit (ConvertKit)'s. If you're a growing team, model the 12-month cost at your projected team size, not just today's. Kit (ConvertKit) tends to stay more predictable as you add seats or usage.
Key capabilities you'd miss
Choosing Kit (ConvertKit) means going without Email API, SMTP relay, Webhooks (which SendGrid offers). Choosing SendGrid means losing Email builder, Automation, A/B testing. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.
Switching cost consideration
SendGrid has a broader integration ecosystem, which is great for workflow automation but also creates higher switching costs down the road. Kit (ConvertKit)'s simpler integration footprint means less vendor lock-in — easier to switch if your needs change, but fewer automation possibilities out of the box.
What company size tells you
Kit (ConvertKit) (51-200 employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. SendGrid (1,000+ employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.
25% off Kit — Mailchimp switcher deal
Kit is offering 25% off for teams switching from Mailchimp. Available through April 30, 2026.
Claim offer →Choose Kit (ConvertKit) if...
- You want a free tier to get started
- You value an intuitive, easy-to-use interface
- Getting strong value for money is a priority
Choose SendGrid if...
- You want a free tier to get started
- You value an intuitive, easy-to-use interface
- You need enterprise-grade capabilities
Frequently asked questions
Is Kit (ConvertKit) or SendGrid better?
Kit (ConvertKit) scores 82/100 compared to SendGrid's 81/100 on VendorVS. However, the best choice depends on your needs — Kit (ConvertKit) excels at ease of use (9/10) while SendGrid scores 8/10.
How much does Kit (ConvertKit) cost compared to SendGrid?
Kit (ConvertKit) starts at $39/mo (free tier available). SendGrid starts at $20/mo (free tier available). SendGrid is the more affordable option.
Does Kit (ConvertKit) or SendGrid have a free plan?
Yes, both Kit (ConvertKit) and SendGrid offer free tiers, so you can try each before committing to a paid plan.
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