PostHog provides a powerful analytics and experimentation platform, including built-in surveys for collecting user feedback. However, in real-world applications especially dashboards, internal tools, or B2B SaaS products the default survey UI is not always flexible enough. In this article, I’ll walk through how I built a fully custom in-app survey UI on top of PostHog, while still using PostHog as the data and analytics layer. This approach allowed me to keep full control over UX, layout, and behavior without introducing an additional backend or feedback system. Why Go Beyond the Default Survey UI? PostHog’s built-in surveys are great for quick setups, but I ran into a few limitations and I would like to edit the pop-up. Limited control over positioning and layout UI didn’t fully match with my applicaiton Needed a lightweight, non-intrusive CES-style survey Wanted tighter control over when and how the survey appears Instead of replacing PostHog, I decided to treat it as a survey engine, not a UI framework.…