iDatabase for Mac is an application reliable and easy to use. There are many users that these days have start to use it in place of Bento. It's important to understand whether the functionality present on iDatabase meet your needs, for this reason we encourage you to download the demo for Mac and try it directly. iDatabase is also present in an iPhone version, view iDatabase in the iTunes App Store.
Here you can find a tutorial on how to import a Bento's library into iDatabase