Work Out How Many Uses Justify the Big Pack — Free
Give the two prices and the extra cost; the card returns the uses to payback.
Free tier — complete on its own
- Any number of price pairs compared
- Payback in uses with the saving per use shown
- Copy the card as text
- Stateful link to any result
running the sample…
first-load · sample values are illustrative, not verified facts
Everything you paste stays in this browser tab. Nothing is uploaded, there is no account, and no request leaves the page to generate the result; clearing site data removes anything saved locally.
Keep the price card instead of rebuilding it
$4 one-time · one-time · Your purchase is tied to this device with care — no account needed. Checkout is secure, and your extras are always ready here whenever you return.
- Printable card with a usage tick column to keep on the pack — estimate: 7 minutes saved per purchase decision, basis: 3 prices re-checked at ~2.3 minutes each
- Saved local history of purchases compared — estimate: 5 minutes saved per repeat shop, basis: re-entering 3 figures at ~100 seconds each
$4 one-time
Payment links are filled in after Stripe setup; until then the free tier is the whole tool.