Mobile and Web app agricultural market price analysis idea great

What is your opinion about this idea, mostly for developing countries (especially in africa). And which technology best suits it?

A software(mobile and web applications) that displays accurate agricultural products prices based on analyzed data from distributed agents across markets.

And with the provision for people to sell,search and buy products from various farmers.

And as well provision for people to order for farm produce which is delivered to them at their convenient.