If you are a web developer with some knowledge of HTML and js (bonus marks for Angular or Typescript), the Ionic mobile app development framework represents a huge opportunity to you.
Historically app development has looked like this:
Android app: Native Java/xml
iPhone app: Swift/C++
Both platforms had pretty much no common ground. Those looking to build an app had to pay for both separately, often to separate developers as the skillsets differed so greatly. The result was often below satisfactory, lacking consistency of design among other things. But with Ionic, a common framework allows us to deploy to both of the above platforms (with the additional bonus windows phone OS with Ionic v2) while only writing the code once. The best part is that you can use the existing web technologies you know. The HTML and js gets rendered into the native languages by Ionic so you need not worry about it.
So financially, how does this represent an opportunity to you. The way I see it you have one of two very lucrative options at your disposal:
Freelance: I have had a friend come to me with an app idea after having been quoted at best $18k on the current market. I told him I can do the equivalent work in 2-3 weeks and charge them $2.5k. What's happening here is very simple. Medium and large app development companies are far too slow to adapt to this relatively new hybrid development technology. Freelancers capable of training themselves up (takes about 3-4 weeks) and exploiting this are in a great position to take on projects and become very profitable in no time. Ionic has made making apps much quicker and I believe it will be the mainstream technology of choice in app development companies in 5-6 years time.
Innovate: If like myself you are constantly thinking up ideas for projects, being skilled in quickly creating a prototype app is invaluable. Already I have created 3 rough v1 prototypes for ideas I have had and have received $15k in funding for one of these simply on the back of how impressed they were that I was able to create a working v1 prototype without any funding at all.
So here you are. Enjoy the benefits of app development becoming as adoptable as making a Wordpress site!
https://ionicframework.com/