The best alternatives to Gravity scan are Google Cloud Platform, Marshal, and Probely. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Gravity scan?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Marshal is a new online privacy tool that provides you with peace of mind by finding and alerting you to sensitive data – such as social security or credit card numbers – in your cloud services.
Probely finds vulnerabilities or security issues in web applications and provides guidance on how to fix them. Probe.ly was built having developers in mind and follows an API-First development approach, providing all features through an API. Get Secure!
ZeroDayGuard hardens code during the normal build process by infusing detection, protection, and response within applications and libraries. Pin-points details of hacks and defects. Stay ahead of the hackers -- shift detection and protection left.