ARPAY - Buy gift cards at ar-pay.com, which allow you to access your favorite internet services: online games, e-wallets and console games, online shopping cards and many more!

Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.

G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!

Money Tracker Pro - K-Tech Systems - experts in the world of .Net

GOG.com - DRM-free game store, selling both new and old titles. No clients required.

Grisbi - Accounting for everyone !