> ... but the main doubt I had is isn't it just like linking to a website ? Not if your app uses the site's functionality to produce a result. If you link to

> ... but the main doubt I had is isn't it just like linking to a website ? Not if your app uses the site's functionality to produce a result. If you link to a site like this: http://somesite.com http://somesite.com , that's all right. But if you include an argument with the URL to get a specific result, that can be infringing. If I post this URL with an argument: http://www.wolframalpha.com/input/?i=solve%28a+x%5E2+%2B+b+x+%2B+c+%3D+0%29 http://www.wolframalpha.com/input/?i=solve%28a+x%5E2+%2B+b+x... I can get away with it (primarily because it's a free advertisement for Wolfram Alpha). But if I put the URL and its result into an app that I post on Google Play, and especially if I charge for my app, clearly that's an infringement of Wolfram's product and rights. Now think. Wolfram Alpha is accessing an external database to acquire the data you need. What you should do is find out where Wolfram Alpha is getting their data, and go there instead.