Pi Network is a free iOS app developed by SOCIALCHAIN INC. It falls under the category of Social & Communication, with a subcategory of social networking. This app allows users to access and grow their Pi holdings and serves as a wallet to host their digital assets. Pi is a new digital currency that is fairly distributed, eco-friendly, and consumes minimal battery power.

The app is easy to use and has a user-friendly interface. Upon downloading the app, users can sign up with their Facebook account or mobile number. After creating an account, users can start mining Pi by simply tapping a button once every 24 hours. The app does not require users to keep the app open or perform any other actions to mine Pi.

Overall, Pi Network is a promising app for those interested in digital currency. Its eco-friendly and low battery consumption make it an attractive option for users. However, it is important to note that Pi is still in its early stages and its value has yet to be determined.