J:COMイベント＆プレゼントアプリ

That's just a review from an English-speaker's perspective. I've been using JCom Mobile for a couple of years, and actually think it's a good value, but any part of it that's in Japanese has been beyond me. That includes this app. Maybe some good values here, but they don't care enough to go for my actual money. I'll probably leave for Rakuten Mobile. Right now I'm still on a trial basis over there and it just seems like a significantly better value. Still no English support, however.