diff --git a/README.md b/README.md
index 58d1e40..499e019 100644
--- a/README.md
+++ b/README.md
@@ -366,6 +366,7 @@ List of projects that provide terminal user interfaces
 - [impala](https://github.com/pythops/impala) TUI for managing wifi
 - [isw](https://gitlab.com/thom-cameron/isw) A simple terminal stopwatch application for pomodoro etc.
 - [jrnl](https://jrnl.sh/) Collect your thoughts and notes without leaving the command line. human-friendly. future-proof. secure.
+- [klirr](https://github.com/sajjon/klirr) - Zero-maintenance and smart FOSS generating beautiful invoices for services and expenses.
 - [LearnByExample](https://github.com/learnbyexample/TUI-apps) A TUI with tutorials and +300 exercises on python, grep, awk, sed & general terminal usage.
 - [lnav](https://lnav.org/) An advanced log file viewer for the small-scale
 - [mapscii](https://github.com/rastapasta/mapscii) Braille & ASCII world map renderer for your console