Kit vs Mailster
Kit
kit.com
Mailster
mailster.coSide by side
| Figure | Kit | Mailster |
|---|---|---|
| Price from | $32.50/mo | $3.25/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | — |
| iOS | Yes | — |
| API | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 7 | 3 |
| Spec score · Email marketing tools | 9.2 (#7) | 7.7 (#120) |
| Spec score · Email Marketing Software | 8.9 (#13) | 7.8 (#121) |
| Free plan | Yes | No |
| Integrations | Kit has an App Store where community developers publish integrations, installed through API authorization or third-party OAuth flows. | Listed integrations include Gravity Forms, Mailgun, Gmail, SendGrid, Contact Form 7, Google Analytics and reCaptcha. |
| Support | Free-plan support is available with requests answered in received order within 24 hours; paid plans advertise email and chat support. | Official support is provided through the member area, and the knowledge base offers more than 300 articles, tips and troubleshooting guides. |
Plans
Kit
- NewsletterFree
- Creator$33 a month
- Creator$390 a year
- Pro$66 a month
- Pro$593 a year
- FreeFree
- FreeFree
In their own words
Kit
Kit is an email-first operating system for creators, combining audience growth, email publishing, automation, and monetization. Landing pages, newsletter sites, forms, and creator recommendations help attract subscribers. Users can tag and segment subscribers by interests or behavior and personalize messages. A visual automation builder maps audience journeys, although several automation features are excluded from the free plan. Kit supports digital products, subscriptions, paid newsletters, and sponsorships. Its App Store groups integrations for e-commerce, memberships and courses, analytics, CRM, and workflows. API access is available on the Free plan, with API V4 for workflow automation and third-party connections. Kit lists a newsletter website, custom domains, paid subscriptions, unlimited email sending, and a sponsor marketplace. Plans include Free at free, Creator at $33 a month, and Pro at $66 a month. The Free plan supports up to 10,000 subscribers and one basic Visual Automation. A 14-day trial is also listed.