NETWORKWORLD has FileMaker Go on top of their list of seven free iPad apps for businesses. The rest aren’t too bad, either.
*FileMaker Go 13, by FileMaker
If you’re a FileMaker Pro user on your PC or laptop, FileMaker Go lets you access these database apps from your iPad (note: the PC version is still needed to create, modify and sync your databases). Version 12 in 2013 was a big change: lots of new features and controls, improved multimedia capabilities, multitasking support, greatly improved speed, and available free for the first time.
Check ’em out.