Nosis - The only investor management software you'll ever need.
Cryptonose - Cryptonose is a desktop application tracking significant price changes and giving an alerts for crypto markets in real-time. It's helpful if you are a daily trader and want to know instantly if something interesting is happening on your exchange.
MoneyMade - Discover and compare investment opportunities
Crypto Price Widget - Tracks your favorite cryptocurrencies
Basket - A note taking application for KDE. Lots of features.
Lionshare - Simple cryptocurrency price & portfolio monitor for macOS