UpCall is a free Android application that helps you identify unknown callers and provides advanced search options to find out who is calling you. The app features a caller ID display, the ability to add pictures and Emocan stickers, search for unknown numbers, and start a group call with one touch. UpCall also has a do not disturb option, emergency numbers, spam call filter, and operator name setting.

With UpCall, you can easily identify the caller's number without having to install your phonebook. The app allows you to block numbers and mute calls, and it gives you the option to block all hidden numbers, international numbers, or specific country prefixes. Additionally, the app shows all your calls in one screen, making it easy to manage your call logs.

UpCall is an excellent application for anyone looking to identify unknown callers, and its advanced search tool makes it easy to find out who is calling you. The app is also perfect for group calls and comes with a variety of features that make it easy to personalize your calls. Overall, UpCall is an excellent tool for anyone looking to manage their calls and stay in control of who is allowed to contact them.