As a user and a consumer, I don't care about average spend per platform. I just want a solid phone that will work reliably and stay out of my way. Market share, profit margins, market cap don't matter at all to me. I just want a decent phone at a reasonable price.

As a developer, I look at the comparatively larger number of Android phones worldwide and weigh that against average spend. A global marketshare around 80% may make the average spend thing a non-issue depending on what app you are trying to sell (and at what price, and to what demographic).

Apple has always been about premium product and premium margin.

Samsung (and other Asian companies) are more into market share. Charging premium price would be nice bonus but for someone playing catch up, lower price with greater marketshare makes more sense.

Do you have the latest (reliable) numbers on that? I know it was true two years ago, but Android is now roughly seven times larger globally than iOS. Hard to believe international users are spending so little.

Keep in mind that Android stretches much further into the low end. You can pick up an Android phone for <$40 some places. For some people it's a feature phone on steroids.