BitStarz

Twenty per cent off, then a three-pound coupon, then a member card, then cashback — and a tax line somewhere in the middle. What does the thing actually cost? The order the reductions are applied in changes the answer, and doing that arithmetic in your head beside a shelf is how people end up guessing. This app does the stacking properly. Type in the ticket price and the pack size, then start adding discount cards: percent off, amount off, coupon, member card, cashback, buy-X-get-1. Each card has a slider so you can set it to whatever the offer really says, a toggle so you can switch it on or off, and a position in the queue. Drag the cards into a different order and watch the numbers move. That step-by-step view is the point. You see the price fall card by card rather than arriving at a single mystery total, so it is obvious which reduction is pulling its weight and which one barely matters once the others have already been applied. The unit price updates alongside it, which is the figure that settles arguments about whether the big pack is genuinely the better buy or just the bigger box. When an item is worked out, give it a name and smash it into the basket. The basket keeps the running picture of the whole shop: cumulative totals, the overall amount saved, the average discount across everything you have added, and the single best deal of the session. Comparing two versions of the same purchase becomes a matter of putting both in and looking, instead of re-deriving the sums from scratch. Use it to check a till receipt, to decide between two competing offers on the same product, or to find out whether a loudly advertised stack of savings is worth as much as it sounds. Everything is typed in by you and calculated for you — the app's only job is to be honest about the final number.

Tarkvronis Smash