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You should retain a lawyer, or another qualified individual, to act as the third party designee for the corporation (if you do not have a partner or co-owner who is a US citizen). The designee should prepare Form SS-4 (Application for Employer Identification Number) and Form 8821 (Tax Information Authorization) for the corporation’s president to sign and return.

I developed and published mobile apps as an individual for several years, and only formed a corporation later as things grew and it made sense. As far as Apple's App Store and Google Play are concerned, you can register as an individual developer without having a corporation. I'd be happy to help further over a call if you have any additional questions. Best of luck with your mobile app!

I've discussed ideas with hundreds of startups, I've been involved in about a dozen startups, my business is at $1M+ revenue. The bad news is, there is no good way to protect ideas. The good news is, in the vast majority of cases you don't really need to. If you're talking to people about your idea, you could ask them to sign an NDA ("Non Disclosure Agreement"), but NDAs are notoriously hard to enforce, and a lot of experienced startup people wouldn't sign them. For example, if you asked me to sign an NDA before we discussed your Idea, I'd tell you "thanks, but no thanks". This is probably the right place though to give the FriendDA an honorable mention: http://friendda.org/. Generally, I'd like to encourage you to share your Ideas freely. Even though telling people an idea is not completely without risk, generally the rewards from open discussions greatly outweigh the risks. Most startups fail because they build something nobody wants. Talking to people early, especially people who are the intended users/customers for your idea can be a great way to protect yourself from that risk, which is considerably higher than the risk of someone taking off with your idea. Another general note, is that while ideas matter, I would generally advise you to get into startup for which you can generate a lot of value beyond the idea. One indicator for a good match between a founder and a startup is the answer to the question: "why is that founder uniquely positioned to execute the idea well". The best way to protect yourself from competition is to build a product that other people would have a hard time building, even if they had 'the idea'. These are usually startups which contain lots of hard challenges on the way from the idea to the business, and if you can convincingly explain why you can probably solve those challenges while others would have a hard time, you're on the right path. If you have any further questions, I'd be happy to set up a call. Good luck.

Yes you should be reporting the capital contributions. Under the old Form 5472 rules, it's true that only items that impacted taxable income would be reportable transactions. So, a capital contribution by you to the corporation would not be reportable, unless the equity contribution was somehow below or above a fair value contribution in exchange for services that you might provide for the corporation - essentially an imputed reportable transactions. When the IRS changed the Form 5472 rules to require non-U.S. owned single member LLC's, they expanded the reportable transaction definition to include virtually everything. The term “transaction” is defined in Treas. Regs. Section 1.482-1(i)(7) to include any sale, assignment, lease, license, loan, advance, contribution or other transfer of any interest in or a right to use any property or money, as well as the performance of any services for the benefit of, or on behalf of, another taxpayer. So, for example, contributions and distributions would be considered reportable transactions with respect to such entities. These amounts can be reported on Lines 12 and 25 with an explanatory footnote that clarities the amounts are capital contributions and not amounts that impact taxable income.

On paper you have the advantage but after several startups control resides in he who knows how to execute the vision of the company.