Large and Different

This is a very large dictionary/app...600 mb. So the dictionary is very complete, but if you have a 16 gb iPad/iPhone, its going to take a significant amount of your storage space. It appears that the different versions of the Collins dictionaries were done by different companies and have different interfaces. This one is a straight dictionary with recodeded pronunciations. Ultralingua has conjugations and numbers, but fewer words. It all depends on which you features you want.

Its too bad that there isnt more of a comparision, but at $20+ per app its too expensive to buy just to write a review. Check the pictures in the App Store.

Houdini1900 about Collins Spanish Dictionary