Discount — Sale Price Calculator App

Everything you need to shop smarter

No more rough mental math at the register. Discount gives you the real number in real time, right from your pocket.

Instant stackable discounts

Enter the original price and discount percentages — get the final price and exact savings immediately. Stack multiple discounts just like in-store promotions work.

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Reverse calculator

Know the final price but not the original? Calculate backwards to check if that "70% off" claim actually adds up before you buy.

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Save your best deals

Log each deal with a photo of the item or price tag. Browse your history and track your total cumulative savings across every sale.

Calculate the final price after a discount — free online

Enter your price and discount rate to instantly see the final price and your savings. For stacking multiple discounts or saving your deals, download Discount.

Original price

Discount

Final price —

You save —

Need to stack multiple discounts, add tax, or save your deals?

How it works

Enter the price

Type in the original price shown in-store or online.

Add your discounts

Enter one or more discount percentages, add tax if needed.

See the result

Final price and savings shown instantly. Save the deal with one tap.

Frequently asked questions

How do I calculate the final price after a discount?

The formula is: Final price = Original price × (1 − discount/100). For example, an item at $80 with 30% off costs 80 × 0.70 = $56 — you save $24. Discount performs this calculation automatically in real time, so you always know the exact price.
How do I calculate a discount percentage?

To find the discount percentage between an original and a sale price: Discount (%) = (Original − Sale price) / Original × 100. Example: an item dropping from $120 to $84 is (120 − 84) / 120 × 100 = 30% off. Discount's reverse calculator handles this in one tap.
How do I stack multiple discounts?

Successive discounts don't simply add up: −20% then −10% is not −30%. The correct formula is: Final price = Original × (1 − r1/100) × (1 − r2/100) × ... Example on $100: after −20% → $80, then −10% → $72. Discount applies stacked discounts automatically.
How can I check if a sale price is genuine?

Use the reverse calculation: Original price = Sale price ÷ (1 − discount/100). If an item is labelled $56 with "−30% off", the implied original is 56 / 0.70 = $80. Compare that to the usual price to spot inflated discounts — exactly what the reverse calculator in Discount is built for.
Is Discount free?

Yes, Discount is free and ad-free. All calculation features are available at no cost.
What devices does Discount support?

Discount is available on iPhone, iPad, and Mac via the Apple App Store. It is not available on Android.