Is it necessary to always update your Apps?

I think almost everyday I receive notifications that there are new updates available on my Apps in Play Store. Is it necessary to always update your apps? It almost consumes all my remaining data, no worry if you are in free WiFi zone. What's your thoughts guys?

 

Yes its mandatory to update your apps to get them running better. If you don't you apps may not work the way they are. And they don't take much space, may be a few mbs. The more space what it takes in our smartphones are from the pics/videos we take.

 

Every week there are new updates and i think around 100mb has to spend to complete the updates.

It will still work even if your apps are outdated but you will not be able to enjoy the new features of these apps.