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Re:Source code of Germany’s official covid-19 contact tracin... by Someone on Tuesday June 16, 2020 @07:56AM (#23538080)
The money isn’t spent on the app; it’s spent on the backend, and there, scaling efficiency gains are limited because of diversity in computer systems.

Also, the app would have to be translated in many more languages. If you don’t want that to increase time to market, it will cost a lot of money.

Re:Source code of Germany’s official covid-19 contact tracin... by funcDropShadow on Tuesday June 16, 2020 @08:16AM (#23538210)
But in my understanding the backend of the german app is generic, since it only receives random IDs from the mobile apps and assembles a list of them to download again.