---
title: "How email powers Polar's core customer experience"
description: Resend removes all the headaches email used to bring, making it painless to integrate, customize, and send
slogan: Payment infrastructure for the 21st century
name: Polar
slug: polar
logo: /static/customers/polar-logo.svg
website: polar.sh
founded: Stockholm, 2022
using_since: January, 2024
authors:
  - name: Birk Jernström
    title: Co-founder & CEO
    avatar: /static/avatars/birk-jernstrom.jpg
updated_at: "2025-06-25"
---

Email is absolutely critical to our business—and to our customers' experience. Every day, we send truly **transactional emails**: from order confirmations and receipts to OTP codes that let customers log in, access their order history, retrieve license keys, and download digital assets.

For us, email isn't just a communication channel—it's the **backbone of our customer experience**.

When we decided to move to Resend, we wanted a solution that would streamline our workflow and let us leverage React Email for easier templating. The switch was a breeze—within a single day, we were up and running. The integration process was so smooth that it **hardly felt like a migration at all**.

With Resend, we **don't have to worry about deliverability or templating headaches**. React Email makes customization effortless, and the ability to quickly look up a customer's email history or see why an email failed has been a game-changer for our support team.

On the rare occasion we've needed help, Resend has been **responsive and effective**. Recently, one of our developers reached out and the issue was resolved so quickly that it barely registered as a hiccup.

Resend makes email painless to integrate, customize, and send—with great pricing. It truly **removes all the headaches** email used to bring.