I feel like my phone apps update constantly. In general, that’s a good thing, I assume. I figure they’re fixing bugs or whatever. However, I don’t run into issues very often, nowhere near the rate of updates, and nothing seems to change after the update.
Compare that to Steam games which update really infrequently and the changes are usually much more obvious.
Some good answers here. Also developers regularly add or update translations, support new features your phone doesn’t even have, compatibility with a different smartwatch, or regular bugfixes that only trigger in special circumstances and just for some users… All of that is difficult to notice for the regular user. Unless you buy the latest smartwatch an try to operate the app with it, or set your phone to Arabic.
And then there are maintenance tasks that don’t add any (visible) features. And apps are generally part of some more infrastructure at the respective company. Internal changes in their workflow or related software might change things. Or they decide to prepare something for the future or make it more efficient.
Sometimes they just update the year in the copyright notice. Or they re-build the app with the latest versions of the libraries that are supplied by different companies or open source projects. Those regularly change, fix bugs and generally you don’t want to depend on any old software library versions with known bugs and vulnerabilities. So there are a lot if reasons why software gets updated without visible changes.