Hi Mr. Lee,

I am not an expert on Apps, or App development, but I can offer a few tips. It sounds like you really do believe you have a potentially lucrative idea for an App. If you live in the US, the first thing I would do is file a temporary patent. You can do so here https://www.uspto.gov/ for about $100. The temporary patent protects your idea for one full year from the date the patent request is approved. This time is essential for many entrepreneurs who are just getting started with an idea, but may not yet have a working prototype, or otherwise need time to further develop their idea. To get a full patent, you will need to develop a "proof of concept", essentially a prototype of your idea (in your case, your App). Having a temporary patent will serve to not only protect your idea from being taken by another developer, but it may also help make your idea more attractive to investors, and potential business partners.

I have gone through the patent process several times. Let me know if I can be of further assistance.

Regards,

Dr. James Bell