Authy vs Castle: What are the differences?
Developers describe Authy as "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. On the other hand, Castle is detailed as "Track security events or any unstructured data from your web backend or mobile app, and Castle will look for anomalies". Castle looks for suspicious login patterns without bothering the legitimate user nor the site administrator. The fully-automated anti-hijack engine identifies potential account compromises based on where the user logs in from and how they navigate the site.
Authy and Castle can be categorized as "Security" tools.
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, Castle provides the following key features:
- Security Analytics
- Threat Alerts
- Login Notification Emails
According to the StackShare community, Authy has a broader approval, being mentioned in 20 company stacks & 5 developers stacks; compared to Castle, which is listed in 4 company stacks and 3 developer stacks.