Right now, I have my store on the "honor" system where I have a delivery policy that says we will delivery x miles away from a zip code.
It would be great to set up rules that the store would verify the customers zip code so if the customer falls outside the range, it will only show a "shipping option."
Now, I have seen a few applications that cost $30 a month and include delivery pickers for dates and time etc. I do not need or offer custom delivery dates/times, I have one day that I deliver all orders.
Is there a cheaper option for a business just starting out that only sells 5 products with 15-30 orders a week?
I would be okay with manually inputing each zip code that would fall within the 15 mile zone.
It seems to be that you need a cheaper app "AOD Zipcode Locator" as per your requirement.
Your customers can check product availability through zip code. Merchants can assign different zip codes to different products as per their availability.
Benefits with Zipcode Locator
App link : https://apps.shopify.com/aod-zipcode-locator
Please install the app and avail 3 days free trial to test the functionality.