050IP Phone

050IP Phone is a communication app by NTT DOCOMO BUSINESS, INC. with 50,000+ downloads (about 64K estimated). +61 installs in the last 7 days. Released Aug 30, 2015. Install growth, rank history, SDKs and ad networks.

From the store listing: “050IP Phone is an IP phone application for smartphones which allows you to make calls at fantastic low rates. Unlike free chat software, you are given a special phone number starting with 050, so you can make and receive calls to mobiles and landlines. You'll be amazed at what you could be saving! About Registration…”