Seems about right ballpark, if not undercounting it.
My team doesn't releases a mobile client but we release desktop client / chrome extensions every week. It takes about a day of work for an engineer to go through the builds, QA, prepare notes, check the status of things in flight that are trying to land in there, fix some related bugs and so on. And that is with a lot of automation we have. It is also a big distraction from other work, so the opportunity cost is quite high too.
My team doesn't releases a mobile client but we release desktop client / chrome extensions every week. It takes about a day of work for an engineer to go through the builds, QA, prepare notes, check the status of things in flight that are trying to land in there, fix some related bugs and so on. And that is with a lot of automation we have. It is also a big distraction from other work, so the opportunity cost is quite high too.