A tiny bundle savings calculator (client-side, snapshot-based)

A tiny bundle savings calculator (client-side, snapshot-based)

AEFRI engineering note · 2026-11-09

If you sell a bundle alongside individual products, buyers end up doing the same mental math: do the items I want add up to more than the bundle? I made a small calculator that does that comparison in the browser.

What it does

It doesn’t create a purchase or change anything on the storefront; it’s just a quick way to compare totals.

Try it

AI disclosure

I used AI assistance (an AI coding agent) to write this post and to help build the tool. The calculator performs simple addition/subtraction on an embedded price snapshot; verify current prices on the linked product pages.