Authy vs Starling: What are the differences?

What is Authy? The easiest way to add Two-Factor Authentication to any website or app. We make the best rated Two-Factor Authentication smartphone app for consumers, a Rest API for developers and a strong authentication platform for the enterprise.

What is Starling? A light weight server for reliable distributed message passing. Starling is a powerful but simple messaging server that enables reliable distributed queuing with an absolutely minimal overhead. It speaks the MemCache protocol for maximum cross-platform compatibility. Any language that speaks MemCache can take advantage of Starling's queue facilities.

Authy belongs to "Security" category of the tech stack, while Starling can be primarily classified under "Message Queue".

Some of the features offered by Authy are:

• Very secure- We take security seriously. We use industry standard secure algorithms (HMAC RFC 4426) and 256 bits keys which are always encrypted at rest.
• Fully redundant- The Authy API is deployed accross different PCI level 1 data-centers and it's fully redundant. We also use a DNS provider with anycast support. We've had 100% availability since 2011.
• Great user experience- You connect to Authy using a transparent REST API which allows you to customize the experience you want for your users.

On the other hand, Starling provides the following key features:

• Written by Blaine Cook at Twitter
• Starling is a Message Queue Server based on MemCached
• Written in Ruby

Starling is an open source tool with 468 GitHub stars and 63 GitHub forks. Here's a link to Starling's open source repository on GitHub.