If you're a Samsung user thinking about switching to an iPhone 7, you may be interested in transferring all data - music, photos, contacts, messages, videos and so on. Luckily this MobileTrans can help you transfer data from Samsung Galaxy S4 to iPhone 7 / 7 Plus with no data loss.

youtu.be/wGlwkk8trZo

Works with Samsung Mobiles like:
Galaxy S: S5, S6, S6 Edge, S6 Edge+;
Galaxy Note: Note4, Note Edge, Note5;
Other Galaxy: E7, J3, J7 and more