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There is no absolutely fool-proof technical way of ensuring that your product will not get used without a proper license. You can only take technical measures to make it harder.
Based on that premise, the first question you should ask yourself is how likely it is that your customers would try to go against your license and get themselves potentially into ...
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The answer is quite simple: you are building two different applications, so you will have distinct use cases for every application (system).
Just postfix your use case names with "for Web" and "on Android" so you see clearly that you are describing different things. It is clear that you feel a need to optimize by not duplicating requirements, but you must ...
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Let us start with
I know I need to set up a database to query the locations so I've tried to import the data to a MySQL server but I've been having trouble due to the size of the data set.
This has not much to do with your question's title, but all major DB systems support a form of "bulk insert". For MySQL, look into this SO question as a starter.
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