The verdict
If you sell products online and want messages triggered by what customers buy and do, pick Klaviyo. If several people in your business run the same procedures, such as client onboarding, employee onboarding or compliance checks, and you need proof that every step was done, pick Process Street. A pure B2B service business will get little from Klaviyo, since it has no deals pipeline or account view. A solo operator with a few checklists will find Process Street heavy, and a shared document may do. These tools rarely compete for the same budget, so decide by the problem you feel most.
Side by side
| 6 points compared | ||
|---|---|---|
| Starts at | $20/mo | |
| Free plan | Yes | No |
| API | Yes | Yes |
| MCP server | Yes | Yes |
| Built-in AI | Yes | Yes |
| Integrations & API | Yes | Yes |
| Links |
Plans and pricing
Klaviyo
- FreeFree
- Composer$20/mo
Process Street
Pricing not in our catalogue yet.
Who each is for
Choose Klaviyo if…
Pick Klaviyo if you run an online store or direct-to-consumer brand with a customer list. Email, SMS, push and WhatsApp sit on one profile, segments use purchase history and site behaviour, and flows such as welcome series and abandoned carts send themselves. You see revenue from each flow. There is a free plan to test with, and an official MCP server for AI tools. Paid plans are calculator-driven and rise with contacts and channels, so check your real numbers first. It depends on clean data from your store, and someone has to own the flows.
Choose Process Street if…
Pick Process Street if a process lives in someone's head or in a document nobody follows. Conditional logic lets the next step change with an answer, approvals and forms sit inside the run, and reports show where runs get stuck. It suits operations, onboarding and compliance teams with several people running the same workflows. It has an API on every plan and an official MCP server. There is no free plan, only a trial on Pro, and the amounts are not shown up front, so ask for a quote. It has moved towards compliance-heavy teams, so an early-stage team may find it more than it needs.
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