I have used lots of gallery app which are having some of best features but will take more space from your internal storage as of now there are many phones which are coming with hybrid sim solution and we can’t put SD card and both the sim at once so we have to find app which take less space and provide all the key features all other gallery apps provide. 

So the app which I am using and also recommend everyone to use is Quickpic it is one of the best gallery app I have ever used it is fast secure and also takes very less space from your phone memory.It’s significantly smaller than other gallery apps but packs more power than any of them. You can even secure the gallery app by adding passcode no need of any separate app to lock the app.Hope you guys like the app. Just give a try for this app.Here is the link.https://play.google.com/store/apps/details?id=com.alensw.PicFolder&hl=en