Cloud pricing is opaque. Compass brings transparency by calculating cloud value for money index across all providers.
The Big Mac Index is published by The Economist as an informal way of measuring the purchasing power parity between currencies and countries. It 'seeks to make exchange-rate theory a bit more digestible'. In a similar fashion, Compass is indexing purchasing power parity between currencies, cloud providers and processing power of VMs. Cloud offers are complex and complicated, so indexing all of them for easy comparison brings transparency to the cloud industry.