iPhone 6 Plus - Upscale

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Hello guys, I recently swapped my iPhone 6 for a 6 plus. The thing I liked about my 6 was using Littlebrother which made every part of iOS seem a bit smaller(which I liked a lot).. With ip6 plus I used springtomize to change the icons size but everything else seems TOO big, like settings, instagram, Facebook etc. Is it possible to change the resolution of my iPhone 6 plus to achieve the same kind of effect as my 6 had?

Any help will be very appreciated,
Thanks Guys!