diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ A collection of COSMIC projects developed by the community.
 | Name | Description | Image |
 |---|---|---|
 | [tasks](https://github.com/edfloreshz/tasks) | A simple task management application for the COSMIC desktop. | <img src="https://raw.githubusercontent.com/edfloreshz/tasks/main/res/screenshots/window-light.png" alt="tasks" width="200"/> |
+| [cosmic-ext-calculator](https://github.com/edfloreshz/cosmic-ext-calculator) | A calculator application for the COSMIC desktop. | <img src="https://raw.githubusercontent.com/edfloreshz/cosmic-ext-calculator/main/res/screenshots/window-light.png" alt="cosmic-ext-calculator" width="200"/> |
 | [fan-control](https://github.com/wiiznokes/fan-control) | Control your fans with different behaviors. | <img src="https://media.githubusercontent.com/media/wiiznokes/fan-control/master/res/screenshots/app.png" alt="fan-control" width="200"/> |
 | [cosmic-webapps](https://github.com/elevenhsoft/WebApps) | Web App Manager for Cosmic desktop written with love and libcosmic. Allow you to simply create web applications from given url working inside separate window of your browser of choice. | <img src="https://raw.githubusercontent.com/elevenhsoft/WebApps/0.3.5/res/screenshots/window-dark.png" alt="cosmic-webapps" width="200"/> |
 | [cosmic-color-picker](https://github.com/PixelDoted/cosmic-color-picker) | A color picker for COSMIC. | <img src="https://raw.githubusercontent.com/PixelDoted/cosmic-color-picker/main/preview.png" alt="cosmic-color-picker" width="200"/> |