Phone Number Lookup: Reverse is an iPhone app that offers a free number finder service through reverse phone lookups. This tool provides comprehensive information about unknown callers and helps users identify who called them before answering. The app allows users to search for phone numbers, locate ISD codes, and get details on callers, making it easier to connect with others.

With Phone Number Lookup: Reverse, users can quickly find contact information for individuals or businesses, view caller details such as number and telecom region, and track the whereabouts of mobile numbers. The app also features a history of searched numbers, making it convenient for users to keep track of frequently used contacts.