The xTuple enterprise resource planning (ERP) software is available in three editions.
The open-source PostBooks Edition contains functionality for basic accounting, including general ledger (GL), accounts receivable (AR), and accounts payable (AP). It also includes fully integrated customer relationship management (CRM) functionality, as well as functionality for sales, purchasing, product definition, inventory, light manufacturing, and reporting.
The commercially licensed Standard Edition contains everything in the open source PostBooks Edition, plus additional enterprise-class functionality specifically for distributors and light manufacturers, such as advanced returns management, batch processing of e-mailed documents, multiwarehouse control, lot/serial tracking and tracing, and other features.
The commercially licensed Manufacturing Edition of xTuple ERP contains everything in the PostBooks and Standard Editions, plus additional enterprise-class functionality specifically for manufacturers.
All three editions use the same client software—only the database is different. All application business logic resides in the database, and all three editions are based on the same core code. Users can upgrade from PostBooks to the Standard or Manufacturing Edition by running a simple script on their databases.