If you don't make just a list of keywords, then I think you should go for the more SEO-heavy name.
When searching and seeing the results on a device, if your current app name is what comes first (it should be) then your potential users will mainly see that. I think it's something like the 19 first characters that display on the App Store before the "..."
When searching and seeing the results on a device, if your current app name is what comes first (it should be) then your potential users will mainly see that. I think it's something like the 19 first characters that display on the App Store before the "..."