Duet AlternativesProject Management Tools & Invoicing Software like Duet

Duet is described as 'Project management and invoicing for freelancers and small businesses. DuetApp is a PHP application you can run on your server, VPS, or desktop/laptop' and is a project management tool in the business & commerce category. There are more than 50 alternatives to Duet for a variety of platforms, including Web-based, Mac, iPhone, Android and iPad apps. The best Duet alternative is Trello, which is free. Other great apps like Duet are Odoo, ClickUp, Zenkit and Basecamp.

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Alternatives
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Alternatives list

  1. ClickUp icon
    Sponsored

    All-in-one system integrates project, task, and time management with customizable modular dashboards, collaborative image annotation, multiple task views, and granular workflow customization for teams of any size or industry, streamlining complex to simple projects.

    284 ClickUp alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Software as a Service (SaaS)
    • US flagUnited States
    ClickUp screenshot 1
  2. Trello icon
     1261 likes

    Organize and visualize tasks with Trello's boards, lists, and cards. Customize workflows for projects, streamline team collaboration, and integrate tasks seamlessly without starting from scratch. Suitable for meetings, onboarding, and brainstorming with proven playbooks.

    274 Trello alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch
    • Android Wear
    • Software as a Service (SaaS)
    Good alternative?
     
  3. Odoo icon
     150 likes

    Open-source business application suite developed in Python, offering ERP, CRM, e-commerce, and project management, reducing software needs and synchronization costs with over 260 core modules.

    271 Odoo alternatives

    Cost / License

    • Freemium
    • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    Good alternative?
     
  4. Zenkit icon
     216 likes

    Zenkit is a hyper-flexible SaaS platform for managing projects, databases, and more. Use Kanban boards, tables, or custom views to organize tasks, track data, and collaborate with your team. Build a CRM, financial planner, or simply plan your day—all in one intuitive workspace.

    175 Zenkit alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Snapcraft
    • Software as a Service (SaaS)
    Good alternative?
     
  5. Basecamp icon
     243 likes

    Basecamp is a web-based project collaboration tool that allows groups of people to share files, meet deadlines, assign tasks, and centralize feedback.

    167 Basecamp alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Software as a Service (SaaS)
    Good alternative?
     
  6. Midday icon
     16 likes

    Midday provides you with greater insight into your business and automates the boring tasks, allowing you to focus on what you love to do instead.

    83 Midday alternatives

    Cost / License

    Application type

    Platforms

    • Mac
    • US flagUnited States
    Midday screenshot 1
    Good alternative?
     
  7. Widget-Board icon
     24 likes

    Widget Board is a productivity tool that lets you create custom boards with your favorite widgets such as tasks, notes, media, date & time, weather, calendar and so much more!.

    106 Widget-Board alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Google Chrome
    • Context Chrome Extension
    • Software as a Service (SaaS)
    Good alternative?
     
  8. InvoicePlane icon
     73 likes

    InvoicePlane is a self-hosted open source application for managing your quotes, invoices, clients and payments. The application comes with various options, templates and settings to customize your invoicing experience.

    150 InvoicePlane alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    Good alternative?
     
  9. Codecks icon
     8 likes

    Codecks is a project management tool inspired by Collectible Card Games. We removed all the bloat, and made software that helps you stay sane and deliver your milestones.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    Good alternative?
     
  10. Onigiri icon
     13 likes

    Simplify your freelance business with a tailor-made toolkit: invoices, project management, proposals, client portal & more.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  11. Invoicera icon
     41 likes

    A comprehensive invoicing platform offering customizable templates, tax compliance, fraud protection, and client portal. Supports software integration, online estimates, GST invoicing, recurring billing, credit management, and global operations with multilingual and multicurrency support.

    283 Invoicera alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    Good alternative?
     
  12. insightly icon
     22 likes

    Insightly is a web-based application that serves as a project management tool and a Customer Relationship Management (CRM) system. It integrates with Google Apps through a Gmail gadget and supports Google Docs.

    335 insightly alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    Good alternative?
     
  13. Manta icon
     8 likes

    Painless invoicing with stunning customizable templates.

    Cost / License

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    Good alternative?
     
12 of 57 Duet alternatives