Twitter App Card seen in web difference between us and Pinterest

[chanil1218]

Our teaser page(http://pread.com) have these meta tags related to Twitter Card.
``

`` But, Twitter Card act differently with Pinterest. I think we, our team and Pinterest, have similar meta tags for Twitter Card.

1. Our Twitter Card is not seen on Twitter web.:
   https://dl.dropboxusercontent.com/u/3594868/스크린샷%202014-02-27%20오전%207.16.27.png

• I expect link “View on web” like pinterest does.
• I don’t know why our card not be shown on web.

2. In Twitter for iOS:

• Pinterest : https://dl.dropboxusercontent.com/u/3594868/사진%202014.%202.%2027.%20오전%203%2032%2037.png
• Pread(Our team) : https://dl.dropboxusercontent.com/u/3594868/사진%202014.%202.%2027.%20오전%203%2032%2041.png
• Both Pinterest and Pread were installed. But Twitter Card recognize Pinterest as installed and Pread as not installed(“Open app” in Pinterest card, and “Download at iTunes” in Pread card.)
• I don’t know what action should I take.

I think we don’t have complete meta tags. But, I don’t know what tags should I add.
I need your help!

[chanil1218]

Any comments?