This kind of misleading pattern is illegal in Australia and from reading other comments, probably the Europe.<p>In Australia the full price for a product has to be displayed equally or more prominently than any other price. So that $6.93 has to be just as visible other pricing claims (like $0.99 for 4 weeks).<p>The same law also requires companies to include tax prominently in their pricing. More generally, a business cannot engage in misleading or deceptive conduct.<p>The rationale behind this is it makes things fair for consumers, and helps businesses compete fairly.<p>These laws probably don&#x27;t exist in places like the US as businesses complain about compliance costs, and the governments have other priorities.