DingDongApp:手機照片互動應用是一款使用者拍一張照片，發給一個或幾個朋友，然後朋友們再發照片回來，就像以照片的形式發信息一樣；和你的朋友進行照片互動，只要叮咚一下，圖片即可互動分享了。
DingDong 的玩法有自己的特點，而基本的 idea 是希望將你與朋友的聯絡變得極其簡單而又直觀。像按門鈴那樣拍張照片，這時就會 DingDong 一下你的好友。這時好友可以選擇新增表情或 DingDong 一張圖片回去。你們的互動會在地圖上顯示出彼此位置的連線。
DingDong 不能新增文字，也沒有傳統照片的分享機制，一切都發生在這個 app 之中——不會有來自 Twitter 這些社交網路的反饋，它只靠 app 本身來吸引使用者。
DingDong 是完全私密的，你不能被關注或關注別人，不能廣播，也不能簽到。每次都你可以決定能看到你圖片和位置的人，就像群發簡訊時選擇接收人一樣。
Ding Dong is the easiest and fastest way to let a friend know where you are and what you’re doing. Send your location and a photo with just one tap.
Ding Dong™ (“we”, “us”, “our”, “Ding Dong”) present the following terms and conditions, which govern your use of the Ding Dong site and services (Website/App), and all content, services and products available at or through the Website/App, including but not limited to http://www.dingdongapp.com.
The Website/App is offered subject to your acceptance, without modification, of all of the terms and conditions contained within, along with all other operating rules, policies (including, without limitation, Ding Dong’s Privacy Policy) and procedures that may be published from time to time on this Website/App or APP by us (collectively, the Agreement).
Please read this Agreement carefully before accessing or using the Website/App. By accessing or using any part of the Website/App, you agree that you are bound by the terms and conditions of this Agreement. If you do not agree to all the terms and conditions of this Agreement, then you may not access the Website/App or use any services. If these terms and conditions are considered an offer by Ding Dong, acceptance is expressly limited to these terms. The Website/App is available only to individuals who are at least 13 years old.
If you operate an account, comment on an account, post material to the Website/App, post links on the Website/App, or otherwise make (or allow any third party to make) material available by means of the Website/App (any such material, also known as “Content”), you are entirely responsible for that Content and any harm that may result from it. That is the case regardless of whether the Content in question constitutes text, graphics, an audio file, a video file, or computer software.
