Add HeyRetro

README.md

@@ -1254,6 +1254,7 @@ Update Time, five active automations, webhooks.
   * [gleek.io](https://www.gleek.io) - Free description-to-diagrams tool for developers. Create informal UML class, object, or entity-relationship diagrams using your keyword.
   * [GraphQL Inspector](https://github.com/marketplace/graphql-inspector) - GraphQL Inspector outputs a list of changes between two GraphQL schemas. Every difference is precisely explained and marked as breaking, non-breaking, or dangerous.
   * [Helploom](https://helploom.com) - Customer support software that offers a live chat on the free forever plan. Simple, lightweight and beautiful. Setup is a simple copy-paste script. Built by a developer.
+  * [HeyRetro](https://heyretro.io/) - Real-time sprint retrospective platform with voting, timers, surveys, guest collaboration, and ice-breaker games. The forever-free plan includes one board per month, anonymous surveys, and guest link sharing.
   * [Hygger](https://hygger.io) - Project management platform. The free plan offers unlimited users, projects & boards with 100 MB of Storage.
   * [Ilograph](https://www.ilograph.com/) -  interactive diagrams that allow users to see their infrastructure from multiple perspectives and levels of detail. Charts can be expressed in code. The free tier has unlimited private diagrams with up to 3 viewers.
   * [Jira](https://www.atlassian.com/software/jira) - Advanced software development project management tool used in many corporate environments. Free plan for up to 10 users.