Kraft is a KDE application for people who run a small business. It helps create and manage business communication documents like offers and invoices, and focuses on ease of use and high quality PDF output. Kraft is not a specialized in a certain trade or craft. Instead, it covers the practical issues of a small business and helps through easy-to-use yet powerful features to deal with most of the office jobs effectively.
Skrooge is a personal finances manager powered by KDE. It allows you to keep track of your expenses and income, categorize them, and build reports. You can also manage your investments and see how they perform over time. Multiple accounts are supported. Some of the features included are advanced graphical reports, tabs that help you to organize your work, infinite undo/redo (even after the file was closed), instant filtering on operations and reports, infinite category levels, mass update operations, scheduled operations, tracking of refunds, automatic processing based on search conditions, and support for multiple currencies.