Well, JSON was a journey for me and now I feel pretty comfortable with it. Firebase was very recent – last couple weeks – and it’s really powerful and not too difficult. I was a fan of Airtable but it has too many issues with Thunkable and Firebase is just way more flexible and quick.
The nice thing about Firebase is that YOU decide the data structure rather than with JSON where you have to decipher all this gobblygook just to find what you’re looking for. And Firebase ends up looking like a bulleted list/outline, which we’re all familiar with from school/business.