Hi there, I'm thinking of getting the Samsung Galaxy S4 with the 33$ plan, I was curious as to how it would it be handliing the app Kik for 300 mb?
The S4 is a great phone and will handle anything you throw at it very well. As far as 300mb being enough data well it really depends on what you do an how much, Kik probably doesn't use too much data but it depends how often you use it as well as Web browsing. You can always change your plan easily through your self serve account if you find that the one you have doesn't have enough data on a continuous basis or just pay the overage on the months you do go over.
Consider using Wi-Fi whenever and wherever possible to keep data usage to a minimum and 300 MB should be fine. I realize Kik is an alternative to the native messaging app found on your phone, but it requires data, (Wi-Fi or mobile data) to function, whereas the phones' built-in messaging app does not, other than to send MMS picture messages and the data used for MMS messages is not chargeable to you.