WhatsApp: is a free app that you can use to be in contact with your friends and with all people you want thanks to this app know you will never be unable to communicate with other people, i download this app because you only need wifi or 4G to use it and is very useful.
Is an app where you can know what is happening on the world at any time you wants from news, entertainment, sports, politics, and your friends. I download this app because i want to know what is happening around me.
Instagram i download this app because here a can publish special moments for me and my friends, family can see them and also i can see this from other persons and the photos will be there until you delete them and you can make and receive comments and likes in your photo.
Snapchat i download this app because i can take a photo at any moment and persons that i have ass friends can see it, this app help me to others persons know what am i doing in this moment.
Facebook: I download this app because here i can post photos, chat, make live videos, know what is happening around me, share things and know persons.
An app i would make it better would be WhatsApp, i would improve the esthetic part because this app has all i want and is the better app of all for me but i think if the make it more nice or add simple pieces of esthetic for the app looks more attractive.