If you compare Serenity against similar products, you'll notice it already costs less than a quarter of the others.
Serenity is already struggling to meet data expenses at its current plan rates, so further discounts will be difficult.
Powerful Free Screener
So if you feel your investments are not significant enough to warrant a paid plan, you may want to consider using the Classic Graham Screener alone.
Budget Paid Screener
Alternately, you can also use the $22.50 one-month plan, which has been provided precisely for such applications.
But please note that the one-month plan is not refundable.