Name your favorite app and talk about the function you like best?

My top 3 best apps that I really find useful are:

Onedrive:  it allows me to store and share huge amount of data which I can access anywhere and everywhere.

Whatsapp: I can communicate and send data/documents/location to all my contacts easily. With the newest update, I can also save and talk to my professional contacts from other accounts such as Gmail, Yahoo, Linkedin etc. 

Skype: this app serves as our company's medium of communication which I find cost-effective rather than using telephone overseas or local.

I prefer Evernote it is the popular notepad-of-all-trades app (free; Android, iOS, Mac, Windows) , I like it because  it keeps my notes synchronized across all of my gadgets. If I snap a photo of something that includes writing  and also if I paste in such an image , even handwriting, its behind-the-scenes optical character-recognition algorithms decipher the writing as text. Despite the accuracy isn't quite good enough to convert the writing into typed text, but it's good enough to let me perform searches on handwritten notes. That is, I can pull up the image of my scanned or photographed handwriting by typing a keyword into the search box. Thank you

It depends on use I like the following to be more productive. My top three as as follow:

• Evernote - Remember Everything. Modern life can be complicated. Simplify it with Evernote, the app to manage it all.
• Dropbox – Cloud computing based data, storage, sharing solution
• Skype – Video conferencing to have faster, cost effective way to have modern ‘face to face’ meetings.

Wonderful query : My always favorite is OLAP, it is a business intelligence software for all my business report, results, feedbacks and many more. 

E-book reader app>>>>>>>>>>>>>>>>>

.                           facebook and whatsapp

Thanks for invite , in Microsoft office I think Excel , Power Point and Publisher , in general computing there is SPSS , and in communication Mobile 

I like Endomondo for connecting running and generally sport-excited people.

twitter & Skype >>>>>>>>>>>>>

I use Facebook apps and Facebook Pages Manger