In most cases the only thing that changes between plans are minutes and data usage. The rest typically always stays the same. We have no way of seeing what your plan has, so you will have to compare the two in self serve.
And start time of unlimited Evenings and weekends are different (some older plans start 7pm)
Overage charges for minutes and data are different too.
So compare your plan and $28 as Mathieu suggested , then you can find out which is better plan fo you.
Also to get $28 plan, your tab have to be paid off.