Some of the best material design apps

Flud

Flud is a bit torrent client with many options it has a very nice UI which follows material design. The app is free with all features unlocked. There is also a adfree version.

Inbox

Google introduced inbox which bundles your messages together so you deal with them all at once, get important information at front, also you can set reminders. this app has many material design goodies flat design with nice animations. you need an invite to intall this app Email inbox@google.com to request one.

Talon for Twitter (Plus)

Created with Android Lollipop and Material Design at it's center its one of the nest looking app for twitter. it has tons of options which official app doesn't have.

Cabinet beta

Cabinet is a file manager with minimalistic look which is inspired by material design. It also support root access. There are necessary animations with all the options making available at finger tips with UI that pleases the eye.

Google Calender

There are many calendar apps which have material design but what makes it better than other is that integrates itself with google now and gmail. The UI is clean and bold you can view all the events and entries in a list which are updated

Quick pic

Simple, modern, light its the best replacement gallery app. Specially for lollipop as google decided to ditch it for photos app. This app has many features like two finger rotate, different views, material design,  Photos load very fast. It also let you create albums with powerful file management capabilities. It can also display dropbox, picasa photos, flickr, one drive, 500px, google drive. It also let you send files over wifi easily.

Wally

Wally is a wallpaper downloading app its is light and build on Google's material guidelines and is easy to use. Wallpapers are categorized and you can also randomize them also Filter wallpapers by categories, resolution, and/or aspect ratio. All wallpapers are high resolution

Survival tools beta

This app is a group of bunch of some utilities which include a compass, Map with lots of functions, S.O.S. and normal flashlight,Stopwatch with nanosecond precision and a complete U.S. Army Survival Manual. The app is beautifully made and has simple UI.

S converter

This contains conversion for all the parameters. its convert to all units simultaneously.. The app is very easy to use and have flat UI.

THE POST WILL BE UPDATED SHORTLY WITH NEW APPS. IF YOU FEEL TO SUGGEST ANY APP YOU POST IT IN THE COMMENTS BELOW.