Have You Heard Of VSCO CAM?
I've been wanting to download VSCO app before on my ipod touch 4th gen but wasn't able to because I need to pay for it and I don't have any credit cards to buy it. Not until I switch to ipod touch 5th gen recently and tried to check it again to see that you can now download it for free. I just don't know if there's still a paid version of it. Anyhow, I love the app so much, you can took photo from its app and edit it directly there or if you have saved photo that you want to edit you can use this app. I've been using this app for quite a month already and been gaining likes on my instagram because of it.
Let me show you some of my edits using the VSCO app.
I hope I help you look for new editing app for your photo. Its free and very easy to play with esp if you're that int instagram and all.
You can check more of my photo on my instagram and perhaps follow : @snoopellie