xTuple is described as 'ERP+CRM. Overwhelmed with Disjointed Data? Outgrown QuickBooks? With productivity and profits, and more complex manufacturing or distribution processes, you need to consolidate everything into a single business system to save time and money' and is an app in the Business & Commerce category. There are more than 50 alternatives to xTuple for a variety of platforms, including Windows, Online / Web-based, Linux, Mac and Android. The best alternative is GnuCash, which is both free and Open Source. Other great apps like xTuple are Odoo (Freemium, Open Source), ERPNext (Free, Open Source), Dolibarr (Free, Open Source) and Ledger (Free, Open Source).
Odoo (formerly OpenERP) is a suite of open-source business apps written in Python and distributed under the AGPL license, under the Open Core software business model. It is used by 2 million users worldwide to manage companies of all size.
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line. This may put off some users, since there is no flashy UI, but for those who want unparalleled reporting access to their data there are few alternatives.
Manager is free accounting software for Windows, Mac and Linux. It features an intuitive and innovative user interface with modules such as cashbook, invoicing, receivables, payables, taxes and comprehensive financial reports.
Tryton is a three-tiers high-level general purpose application platform under the license GPL-3 written in Python and uses PostgreSQL as database engine. It's the core base of a business solution providing modularity, scalability and security.