I tried using Iphone 6s for a while buying into the idea that IOS provides more stable, matured apps. I really tried hard to like Ios and Iphone but after using it for 3 months had to give up. I hated the lack of back button which makes you do extra taps , the way notification centre is organised - like an afterthought not like a properly designed system from the ground up, the lack of universal sharing as described here, lack of access to file system, and app development. Let me expand on the last part. I found the claim that Ios apps are more developed and stable on IOS very false. I've noticed that netflix, spotify and all google apps are behind in development vs Android. That statement about "stability" might have been true for Android 3.0 but starting from Android 5.0 lollipop, Android has matured a lot, is very stable and looks fantastic as well.
I found the whole Apple-IoS ecosystem nothing but a bloated marketing idea. I worked in sales for the most part of my career and I've never felt so cheated in my life. I felt like someone advertised me this amazing product that is very expensive : "You pay a price but brother you get fantastic quality " Even the built quality so highly praised was not quite what it was advertised. My Iphone 6s unit had an issue with the home button. It felt very cluncky, hard to press and it made a distinctive click noise. It felt like clearly a mishap from the factory, plus what everybody already knows: easy scratchable , very frail if u drop it , etc.
After 3 months I couldn't get rid of Iphone 6s fast enough. I went back to my 1 year old and far superior Xperia Z3 and sighed in relief. No thank you, Apple.