Front end: PhoneGap, Xamarin, Flutter Flutter might be your best bet here, but because it's so new it's a bit of a pain to find certain kinds of libraries. Offline w/ sync, backend: PouchDB, TurtleDB, RXDB

You already know you want to do it. Try it, do both, let us know how it goes; the good, the bad, and the ugly. Some people perform better when switching between two very different tasks.

Sounds like the perfect job for buying time. Now you can learn anything you'd like in a relatively stress free environment and still pay rent!

It might just be a trick to slow app submissions, or a filter to remove those that are half-hearted about delivering an app. Either way, sounds like a pain.

I've always been under the impression that these tests are less for skill assessment and more for liability prevention. Someone, somewhere needs to find a legally defensible way of telling you "no".