SUBLINE PERSONAL is a phone app service that enables you to have a different phone number starting with 050 by merely installing the app on your smartphone. It is a free-to-use program available for Android users, developed by InterPark Co.Ltd. It is a Business & Productivity category app that allows you to utilize two numbers on one smartphone, which can be used as your work phone number, store reservation phone number, side business phone number, etc.

The app is different from free calling apps as it allows you to make and receive calls. You can call both mobile phones and landlines without any contract length restriction or paperwork. You can get one number for 050 in the Personal plan. The incoming call settings are highly customizable, and you can make detailed settings such as forwarding and answering machine.