Duet is a self hosted project management app, with everything a small company needs to manage their business. It has team task management, discussions, invoicing, and a client portal.

We built the entire product - design and development and Duet is currently in it's 3rd version and will continue receiving updates regularly.

User Experience Design Front End Development Back End Development Visual Design Product Planning Website Design WordPress Development
Visit App: http://duetapp.com

Project Dashboards

Duet was designed with simplicity and ease of use in mind. Every screen has a specific purpose and only shows you the information that you need. The purpose of the project dashboard is to give you a quick overview of the status of the entire project.


Document management and file sharing are essential to every project and Duet makes it easy with it's visual file system.

Invoicing & Payments

Duet has built in invoicing and payments. Invoices can be sent via email or downloaded via PDF and customers can pay them online using stripe or paypal

Task Management

Duet provides several options for task management - kanban boards and task lists. You can assign tasks to team members, track time, have discussions about tasks, attach files, and perform reporting.

Landing Page

We also created the landing page for Duet. It's fully responsive and has a clean purpose driven design, just like the app.

Words from our clients

23rd & Walnut helped me refine my idea and built a viable prototype in a matter of weeks. In less than two months we had a product ready for launch. Their persistent support throughout development and launch was always fast and consistent; This project would have been impossible without them.

Carlos Rivera - Founder of ArtRank, Levart, and Art9