OCTO ERP is described as 'Cloud based CRM & ERP designed for small and medium size businesses that is easy to use and uncomplicated'. There are more than 100 alternatives to OCTO ERP for a variety of platforms, including Online / Web-based, Windows, Linux, Mac and Android. The best alternative is Odoo, which is both free and Open Source. Other great apps like OCTO ERP are ERPNext (Free, Open Source), Dolibarr (Free, Open Source), EspoCRM (Freemium, Open Source) and Bitrix24 (Freemium).
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.
SuiteCRM provides an enterprise-grade Customer Relationship Management (CRM) application to a global community of users and software developers. It is a robust and credible alternative to Salesforce, Microsoft and the major CRM vendors.
inoERP is an open source php based enterprise management system. The ERP systems contain all the required modules for running any small to mid-size businesses. The features are very similar to Oracle R12/ Fusion Application and SAP.
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.