Proof of concept to app

Hey all!

I should preface this by saying I’m not a software developer but I’m asking for some guidance if possible. I’ve been building a CI program for my specific field for the past 11 years through excel, it’s been used as a part of a number of initiatives and through many iterations has performed very well. Its approach is unique (in my field) and there’s nothing like it in the market.

What I’m wondering is, should I:

1. Sell subscriptions to it in its current form
2. Pursue it’s adaptation into an App form
3. Pitch it to a software development company

Thank you