List value retaining in Share point hosted app 2013

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SharePoint

SharePoint2013

Im creating a Share point hosted app.

We have a list inside Share point 2013 app. We are inserting records into the list through some other forms in app.
But when we deploy the app, it is getting retracted & deployed again. So the list values are getting deleted.

Is there any way to retain the Share point app list values during deployment?

I tried the following things as suggested by some experts in internet.

• Setting up the app catalog for app in Central admin and increment the version for every deployment.
• I set the “deployment conflict resolution” property of list instance to “none”.

But both the things not working.

Please help me on this issue.