Patent in another country

There is none. Patents are geographical in scope so you need to apply in EVERY jurisdiction where you want formal legal protection (which can be expensive can be easily 6-figures). What PaaS have gotten away with is treating it as trade-secret and just doing their best to secure the backend against hackers, insiders and general IP theft (didn't help American Superconductors). On the other hand, you can try tactical patent, identify likely competitors and their jurisdictions or manufacturing partners (assuming embedded into mobile phone). Other tricks like trademark, trade-dress etc just makes it difficult enough that easier to license than to withstand the blizzard of legal filings your $200k corporate lawyer on contingency is prepared to unleash.

On other words, apply a rational risk-weighted cost-benefit analysis first.