Photo Grid by Roid App is photo combining app that enables you to turn your photos into great-looking collages and then share them with friends and family online.
With this app, you can create a collage of up to nine photos, with the ability to move and resize the images.
Photo Grid allows you to apply a variety of borders to your collages, or you can have no border at all if you prefer. With this app you also have the option to either create a standard multi-mode collage or what is known as a high and wide photo grid.
You can easily customize your images, making them the ideal size for sharing online, and Photo Grid also features Single HD Mode which is designed specifically for Instagram.
This app boasts online sharing via Facebook, Twitter, Instagram, and more.
Photo Grid was updated to version 2.2.1 in late-March of 2013. The current version has a total of 218 customer ratings with an average rating of five out of five stars. Customer reviews are generally very positive.
I definitely think this is one of the better combining photos iPhone apps. Everything you need is there and the added Instagram perks really set Photo Grid apart from the rest.
For: iPhone, iPod touch, and iPad with iOS 4.3 or later. Optimized for iPhone 5.