We had React native apps in the making for over 2 years but we were not truly working on them all the time. Now that I am looking back on this probably if we focused on mobile apps we could have launched sooner.
Choosing react-native was better than 2 native apps because it saved us time. It was not all sunshine and rainbows though. As a framework, it's a bit buggy and does not run as smoothly as a swift app development will.