Bookipi - Clean, simple way to save money with an app
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Zoho Invoice - 100% free online invoicing software for small businesses.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Invoice2go - Full featured, invoice and estimate solution with full mobile support.
LightShot - The fastest way to take a customizable screenshot.