Authy
Description: Authy is a two-factor authentication app that provides an extra layer of security when logging into accounts. It works by generating timed one-time passcodes on your mobile device to verify your identity.
Type: software
RRDTool
Description: RRDTool is open source software for logging and graphing time-series data. It is useful for monitoring server and network statistics over time.
Type: software
Pricing: Open Source