Apple’s developer conference coincided with a period of unprecedented tension with its developer community, parts of which are chafing under Apple’s rules for the iPhone App Store.

These rules let Apple extract a large portion of the value of the App Store. This revenue is more important than ever to Apple’s growth story, so it has been applying its rules more strictly.

Apple is constrained here by the need to deliver the best product possible to its users, and by the possibility of regulatory intervention.

In response to COVID-19 and the associated lockdown and economic crash, advertisers have slashed budgets. Online budgets are not immune.

This has clarified features of the online ad market: it is demand-driven, relies heavily on SMEs and startups, and is built on direct response campaigns.

We expect online advertising to outperform other media, and for platforms to further gain share. But with a very few exceptions, this health and economic disaster is good for nobody.