Where can I find all the apps I've ever purchased on my iPhone 4?

I recently upgraded to an iPhone 5C and the guy at the Verizon store said I'd be able to access all the apps I had ever purchased through the App Store on my phone, but I've only been able to find a couple that way.

I rarely ever synched with my computer and I didn't have an iCloud option on my iPhone 4, so I doubt anything is backed up through iTunes or otherwise.

Where can I find my complete app purchase history, free apps included?

Go to the app store, and go in updates, and go Purchased, everything should be there, hope this helps!

First you need to sign in in your apple account. For that App Store-->Featured. At the bottom you will have the option to sign in. Next go to App store-->Update. On top you will find a Purchased option. Here you will get the complete list of all your purchases(including free) for your apple account.