Building Mailtrap.io: Lessons in Product Growth and Data-Driven Decision-Making | The SaaS Podcast

How do you turn an internal tool into a profitable product used by thousands?
And what does it really take to scale a product while staying deeply user-focused?

In this episode, Railsware Co-CEO Sergiy Korolov joins The SaaS Podcast to share the story behind Mailtrap.io – from an internal testing solution to a fully-fledged email platform trusted by teams worldwide. Together with Omer Khan they talk about using data and user insights to drive pricing and product decisions, impact of mandatory surveys and how to scale without losing quality.

🕰️ Tune in and find out:
00:00 Intro
00:28 Introduction of Railsware and the Product Studio model
02:33 The story behind Mailtrap.io
05:33 Managing multiple contexts as a Co-CEO
08:33 Transitioning from a free tool to a paid product
11:03 Data-driven pricing decisions
13:42 Does reducing the amount of users' effort bring in more conversions?
15:13 Reaching the first $1M in ARR
17:26 Using surveys to guide product growth
25:16 Turning user feedback into product decisions
28:00 Challenges of expanding Mailtrap’s functionality
32:48 Data-driven approach to email sending experience
36:42 Using AI in everyday workflows
43:37 Will vibe-coding replace traditional development?
47:50 Lightning round
51:33 Wrap-up

💬 Connect with Sergiy on LinkedIn:   / sergiykorolov  
🎙️ Dive into more valuable content from The SaaS Podcast: https://saasclub.io/saas-podcast/
📨 Learn more about Mailtrap.io: https://mailtrap.io/

✅ Visit our website: https://railsware.com/
🚀 Join our team: https://railsware.com/careers/
⚙️ Let’s build damn good products together: https://railsware.com/services/