Here are the latest iPhone/iPod touch/iPod/iPad apps. You can find ’em at the Apple App Store (http://www.itunes.com/appstore/).

Inkstone Software has announced eBook Search Pro 1.0 for iOS, an enhanced version of their ad-supported eBook Search app.The free app makes it possible to find over two million free eBooks and download them directly to the iBooks, Kindle, Nook, and Kobo apps. It does this by connecting to the free book catalogs of Feedbooks, Baen Books, Project Gutenberg, Smashwords, and the Internet Archive.

Nektony has released VSD Viewer 1.0 for iOS. The US$0.99 app allows users to open and view Visio diagrams on the iPhone and iPad.

Schott Music has introduced Schott Pluscore Sing-Along 1.0 for the iPad. The free voice trainer app with adaptable accompaniments is designed for rehearsing opera arias and other repertoire.

GMT Development has launched Arrow Mania Free, the free version of its original puzzle action arcade game for iOS devices. The free version comes ready to play with six levels.

Eric Sailers has unveiled StoryPals for the iPad. It’s a $14.99 story comprehension application for children that features 24 original stories.

Nekton has debuted VSD Viewer for iOS. The $0.99 app allows users to open and view Visio diagrams on the iPad and iPhone.

Fraiche Ideas has cooked up Fraiche Macarons 1.0 for iOS. At $1.99, it’s the first in a series of recipe apps. Candace has selected a few of the best macaron recipes accompanied by photographs of each.

The North American Membership Group has grown Gardening How-To for the iPad. The free app provides gardeners with a wealth of information, images, and videos.

AllAware, the free web and mobile app solution for nonprofits, is now available for the iPhone. Implemented by almost 100 organizations with over 900,000 members, allAware is designed to improve communication and member involvement while also providing support for mobile donations.