Mulesoft
Observa offers Free Trial, but Threat Stack does not.
Threat Stack is designed for Large Enterprises, Medium Business and Small Business.
Observa is designed for Individuals and Small Business.
The starting price of Observa begins at $15/Month, while pricing details for Threat Stack are unavailable.
Some top alternatives to Threat Stack includes CipherCloud, JupiterOne, CodeShield, Qualified, CyCognito, Lacework, Workvivo, LTS SOAR, BluSapphire, Observa, Qualys Cloud Platform and Aptible.
Some top alternatives to Observa includes iCompaas, Cloudzatic, DisruptOps, Qualified, Workvivo, Crowd Sentry, ARGOS Cloud Security, AWS CloudFormation, Expose, Telescope, AWS Systems Manager and Qualys Cloud Platform.