From bbc30056c956dd8aec704f83793095c30cc07019 Mon Sep 17 00:00:00 2001
From: Edreih Aldana <edreihaldana@yahoo.com>
Date: Fri, 24 Jun 2016 20:14:04 -0500
Subject: [PATCH] Update non-free.md (#574)

Add Duet under Project Management.
---
 non-free.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/non-free.md b/non-free.md
index 680df6c5..27620b0a 100644
--- a/non-free.md
+++ b/non-free.md
@@ -51,6 +51,7 @@
 
 ## Project Management
   * [Active Collab](https://www.activecollab.com/) - Project management  - `⊘ Proprietary` `PHP`
+  * [Duet](https://duetapp.com/) `⊘ Proprietary`  - Invoicing and project management with an integrated client portal   ([Demo](https://duetapp.com/demo/#dashboard)) `PHP`
 
 ## Self-hosting Solutions
   * [Axigen](https://www.axigen.com/mail-server/free/) - `⊘ Proprietary` Great alternative to open source. It's a turnkey messaging solution, perfect for small & micro businesses, integration projects or test environments.