Does notes app take up data on iPhone 4s?

I have a habit of writing random stories when I'm bored, and I tend to use the notes app on my phone. Does this take up data?
Also, if I'm on a Wi-Fi network, do apps still take up data?

All apps take up data on your phone.
and the notes will not.
using Wi-Fi will decrease the usage.

No. Notes is just that a note taking app. No internet connection is required. Anything done via Wi-Fi does not entail data charges

  • Will an upgrade from iPhone 4s to iPhone 5 save my notes and data? I'm planning on upgrading my iPhone 4s to the iPhone 5 and did not know if the data on my old phone would transfer to my new one. For example I have many notes on my 4s that I would like to have imported onto the iPhone 5. When they transfer my phone contacts will it include other phone data such as notes?
  • Why does my iPhone notes app.delete some notes? Some have been there for over a year others just disappear after a few days. I have not (to my knowledge) done anything differently.
  • My iPhone says that my Notes is taking up 1.79 GB of storage. I only have 3 notes, and there isn't a lot of text in them. How do I fix this? Recently there were a lot of notes on my phone, but I deleted most of them until there were only three notes left. However, my phone still says my Notes takes up 1.79 GB. I tried writing a really lengthy note to see if the GB would go higher, but it didn't change. I don't want to delete my three remaining notes, which have very little text in them. I doubt that these notes are taking up 1.79 GB. What is the problem here, and how do I fix it?
  • IPhone/iPad yellow notes the default app? Can anyone tell me why although I have a number of notes in my yellow notes default app on my iPad/iPhone, the latest notes are disappearing into thin air after a few days, yet ones I added at the beginning are still there? How can I retrieve my lost notes please? I use only one email account.