Looks interesting. Does testnet already in place?
Dataeums Data Collection app is currently under development stage. The Dataeum app will be based on app that has already been developed, which the purpose was to test our product towards the community, and to prove it scalability. The algorithm regarding the collection process and back-office that have been developed will be the base of the new architecture.
However, the team have already tested the solution in London, Barcelona and Paris. In these cities, while comparing data displayed on these maps and what they collect, it appears that 28 to 40% of the physical stores were not even displayed. You can read more about this from page 12 of the whitepaper:
https://dataeum.io/white-paper.pdf