This is the only way to write apps for iOS without getting married to apple. We just wrote one for blind users and didn't want to have to worry about app rejections, API deprecations, user interface guidelines changes, etc. Having it open in a standard browser window is not helpful for those that have built up muscle memory.
Modern browsers are becoming very capable and this allows people to write apps for all platforms without jumping through a bunch of hoops.
Modern browsers are becoming very capable and this allows people to write apps for all platforms without jumping through a bunch of hoops.