What is the difference between shared and cloud hosting, and which should I choose? — answered by Engineer Saeed Baatiah
Shared means your site shares a server with hundreds of others, so your speed suffers from their traffic; it is cheaper and fine for a brochure site with modest visits. Cloud allocates resources and scales automatically under load, which is the right choice for a store or a system. The practical rule: if an hour of downtime costs you sales or credibility, the price difference between them is far cheaper than that hour.