Observa offers Free Trial, but SmartIP does not.
SmartIP is designed for Large Enterprises, Medium Business and Small Business.
Observa is designed for Individuals and Small Business.
Pricing for SmartIP Starts at $250/Month whereas for Observa Starts at $15/Month.
Some top alternatives to SmartIP includes ipstack, Snitcher, IP2Location.io, Instasafe Secure Access, Qualified, FindmeIP, Workvivo, VisitorAPI, Observa, IPinfo.io, Monapi and Host.io.
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.