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Square Invoices alternatives · Accounting

Square Invoices alternatives with a Linux app

The Square Invoices listing does not include a Linux app. 4 of the 128 other accounting and invoicing tools in this directory list a Linux app.

Square Invoices has a free plan. Paid plans start at $49 per location / month, billed monthly. 3 of them are free or have a free plan.

4 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from Square Invoices

  1. Manager.io

    Free offline accounting for Windows, Mac and Linux, with a paid cloud

    • Manager.io starts at $59 per month, billed monthly. Square Invoices starts at $49 per location / month, billed monthly.
    • Only Manager.io lists Windows, macOS and Linux apps.
    • Only Square Invoices lists iOS and Android apps.
    • Manager.io is self-hostable, according to its own site.
    Manager.io pricing and details

  2. GnuCash

    Free double-entry accounting for home and small business use

    • GnuCash is free. Square Invoices starts at $49 per location / month, billed monthly.
    • Only GnuCash lists Windows, macOS and Linux apps.
    • Only Square Invoices lists a web app.
    • Only Square Invoices lists iOS and Android apps.
    GnuCash pricing and details

  3. Invoice Ninja

    Invoicing, expenses and time tracking with a free plan

    • Invoice Ninja starts at $14 per month, billed monthly ($140 billed annually). Square Invoices starts at $49 per location / month, billed monthly.
    • Only Invoice Ninja lists macOS, Windows and Linux apps.
    • Invoice Ninja is self-hostable, according to its own site.
    • Invoice Ninja also covers time tracking, expense tracking and quotes and estimates.
    Invoice Ninja pricing and details

  4. TaxCalc

    UK tax return and accounts software for accountancy practices

    • TaxCalc starts at £187 per year (Tax Return Production, up to 12 individual clients). Square Invoices starts at $49 per location / month, billed monthly.
    • Square Invoices has a free plan. TaxCalc does not, though it has a free trial.
    • Only TaxCalc lists Windows, macOS and Linux apps.
    • Only Square Invoices lists a web app.
    TaxCalc pricing and details

Common questions

Which Square Invoices alternatives have a Linux app?

Manager.io, GnuCash, Invoice Ninja and TaxCalc list a Linux app.

Does Square Invoices have a Linux app?

The Square Invoices listing does not include a Linux app. It lists Web, iOS and Android.

Which of these accounting and invoicing tools are free?

Manager.io, GnuCash and Invoice Ninja are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 17, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Square Invoices: the alternatives its listing names first, then the tools that share the most features with it.