Cryptofolio is an open-source, and self-hosted solution for tracking your cryptocurrency holdings. It features a web interface, an Android mobile app, and a cross-platform desktop application for Windows, macOS, and Linux. These three platforms all work using a RESTful API, which you'd have to host yourself.
It can provide you with a quick glance at the market, while also keeping track of your assets and their value. It also includes a feature that allows you to share your portfolio in a...