Monly is an awesome budget planner. It supports transactions logging, budgets, reports, synchronization across your devices and a lot of other features. Monly is distributed so every device has it's own copy of data. You may loose a device, but not your data
Stormbringer email client
Stormbringer is awesome lightweighted email client written for real hackers ;-) Personally I use it on daily basis. So if you received email from me - 99% it was written with Stormbringer.
Sunrise is an awesome free Digital Audio Workstation written with the python and Qt. The main purpose of the project is to develop cross-platform, all-in-one music production software including processing audio samples, applying audio effects, providing a set of instruments and others.