Case Study

Customerscore.io Saves 3+ Developer-Months and Keeps Clients Happier with Topol

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Jack Zagorski  |   October 14th, 2025

4 Min.  read

Customerscore.io wanted to embed a pre-built email editor in their customer retention and marketing platform, so that their clients could easily create professional emails without training, and their development team could focus on perfecting the platform’s core functionality, instead of building an email editor from scratch.

After trying five email editor plugins, they decided to go with Topol.io.

Image preview for article: Customerscore.io Saves 3+ Developer-Months and Keeps Clients Happier with Topol

Executive Summary

Key Outcomes:

  • 3+ months of development work saved

  • 2x faster email template creation thanks to smart features

  • 100% positive feedback from Customerscore clients

Solution Overview:

  • Fully white-labelled email editor enables Customerscore to keep everything on-brand

  • Consistent rendering of templates across devices and ESPs reduces manual tweaking for Customerscore clients

  • Complete SDK for React and detailed documentation made for ultra smooth integration

  • Virtually no training required for Customerscore clients; intuitive drag-and-drop interface makes email template creation easy

“Topol Plugin lets us focus on developing the core functionality of our platform, and enables our clients to build emails twice as fast as they did in other editors, thanks to consistent rendering. Our team is satisfied, and the feedback we get from the clients is all positive.”

— Tomas Horacek, CEO & Co-Founder of Customerscore.io

Customerscore.io logo and Topol.io logo

Full Case Study

Customerscore.io is a fast-growing SaaS company that provides businesses with tools to track, engage, and retain customers using automated “playbooks,” or email-based workflows that help brands re-engage users and measure customer health. The platform also enables users to send one-shot marketing emails.

An inbuilt email editor is a key component of the platform.

The Challenge: Finding the Right Embeddable Email Editor

From the beginning, Customerscore wanted to focus their in-house development resources on their platform’s core automation and analytics features.

They knew that building their own email editor would be a misallocation of time, so they started to search for an embeddable white-label solution.

They auditioned four popular plugins, but all of them had the same problem: Emails often looked different in inboxes than they did in the editor. This meant that the company’s customers had to manually test and adjust templates for different devices and email service providers (ESPs), which was frustrating and time-intensive.

Customerscore tried Topol Plugin and never looked back.

The Solution: Consistent Rendering, Easy SDK for React

Topol’s SDK for React and well-prepared documentation made integration of Topol Plugin ultra smooth. Customerscore’s developers needed very little assistance from the Topol team, and implementation took about a week.

Most importantly, the emails made in Topol render consistently across devices and ESPs. This means that Customerscore’s users can make a template once, and then send with confidence.

“We chose Topol.io because it offers everything we need at a good price, and our users need almost no training. Only one or two cases needed Topol’s support, and those were solved quickly.”

— Tomas Horacek, CEO & Co-Founder of Customerscore.io

Preview of Topol app

The Outcomes: 3+ Months Work Saved, Happier Clients

Customerscore’s dev team estimates that they saved around 3 months of initial development time by implementing Topol’s pre-built solution, as well as the countless hours it would have taken to tweak a homebuilt solution to perfection.

Users say the new editor feels modern and intuitive, and the improved editing experience is now a key part of Customerscore’s product demos.

“Topol Plugin lets us focus on developing the core functionality of our platform, and enables our clients to build emails twice as fast as they did in other editors, thanks to consistent rendering. Our team is satisfied, and the feedback we get from the clients is all positive.”

— Tomas Horacek, CEO & Co-Founder of Customerscore.io

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