Sequenzy turns a prompt and your Stripe data into onboarding, trial and win-back emails that sound like your brand

Most SaaS founders know they should have a welcome sequence, a trial nudge and a polite note when a card fails. Most of them also never get round to writing all of it. Sequenzy is built for exactly that gap. You describe what you want, it drafts emails and automated sequences in your brand's style, and you review and tweak before anything goes out. Campaigns, automations and transactional email all live in the same account.

The maker is Nic Polotnianko, a founder based in Ukraine. After an earlier product, BlogToPin, taught him how hard churn can be, he chose to build in a space where customers tend to stick around: email for SaaS companies. Sequenzy launched on Product Hunt at the end of 2025, and by September 2026 it was being cheered in bootstrapper circles for reaching five figures of monthly revenue.

Where it shines

The clever part is the data connection. Sequenzy can trigger flows from Stripe, PostHog or your own webhooks, so emails react to real events like a new signup, a subscription change or a payment problem, and revenue attribution shows which emails brought money in. It also offers A/B testing, send-time optimisation, landing pages, forms, SMS and a transactional API with SMTP relay. For teams already using AI agents, it exposes tools through MCP, a CLI and a REST API.

The best way to start

Start on the free plan, which includes every feature and unlimited contacts. Connect Stripe first, then ask Sequenzy for a welcome and trial conversion sequence and edit the drafts until they sound like you. If you are moving from another tool, the team offers free hands-on migrations.

A lifecycle email team in a box for founders who would rather be shipping product.

The verdict