After launching the Prepper App for iOS in 2013 for the Appstore (Objective C), in the last years development and marketing stagnated and I just released a few bugfix updates.
Beginning of 2019 I decided to go for the two major feature requests from customers:
This was impossible with my existing objectiveC Code base and several attempts to modernize didn't succeed:
So I decided to give modern web development techniques a try: ReactJS, Redux, and Firestore.
The most I got out of this udemy course which directly fitted my needs. Happy developing!