Downloading Kundera 3.13 for Mac from our website was free. Kundera for Mac lies within Developer Tools, more precisely Webmaster Tools. This free Mac app is a product of Impetus Labs.
From the developer:
Kundera is a "Polyglot Object Mapper" with a JPA interface. The idea behind Kundera is to make working with NoSQL Databases simple and fun. Kundera is being developed to make working with NoSQL as simple as working with SQL. The tool serves as JPA Compliant mapping solution for NoSQL Datastores. It helps developers forget the complexity of NoSQL stores and focus on Domain Model.
You may want to check out more software for Mac, such as AcidSearch Installer, Browsealoud or RAGE WebDesign, which might be similar to Kundera.