What's the best Android app for a simple second phone line on one device?

Tin Can is a viable option for users seeking to operate a secondary phone line directly from their primary Android device. The app's core functionality revolves around providing a distinct phone service with its own number, which is useful for separating work and personal communications, managing a small business line, or maintaining privacy for online transactions. Specific features include a functional dialer, a contacts list, and a call log, all designed to keep the second line's activity compartmentalized. For a freelancer taking client calls or someone selling items online, this separation can help organize incoming and outgoing communications effectively. However, reviews indicate the experience isn't without flaws. Users report that searching contacts doesn't always return all matches, and the call log reportedly cuts off without pagination, potentially hiding older records. Some also mention occasional loading issues that require clearing the app cache. While the underlying phone service receives positive remarks, these persistent interface bugs can hinder the user experience. For basic call management on a second line, Tin Can offers a practical solution, but potential users should be prepared to troubleshoot minor, recurring glitches.