Periscope vs SQueaLy: What are the differences?
Periscope: Periscope plugs directly into your database and lets you run, save and share analyses over billions of data rows in seconds. Periscope is a data analysis tool that uses pre-emptive in-memory caching and statistical sampling to run data analyses really, really fast; SQueaLy: Fast track analytics for business. SQueaLy is an open-source, self-deployable application for developers. It is a micro service for business intelligence and analytics which uses SQL queries to generate reporting APIs with fine-grained security.
Periscope and SQueaLy can be categorized as "Business Intelligence" tools.
SQueaLy is an open source tool with 567 GitHub stars and 45 GitHub forks. Here's a link to SQueaLy's open source repository on GitHub.