CartSum is a fast and simple shopping calculator that helps you quickly calculate your cart total in the store. Whether you want to add prices, calculate item cost by weight, track your budget, or double-check the final total before checkout, CartSum keeps everything clear and accurate.

Made for real shopping

When you’re in a store, you need a quick and reliable way to keep track of your cart total. CartSum works as a shopping calculator that helps you enter prices fast, calculate item costs instantly, and even handle grocery items sold by weight. Whether you want a simple price calculator for everyday shopping or a clear cart calculator to stay within budget, CartSum keeps everything accurate and easy to use. It’s the perfect tool for anyone who wants a clean, fast, and dependable total price calculator right in their pocket.

Designed to make shopping easier

⚡ Fast price entry

Optimized keypad for one-hand use with large, easy-to-tap buttons. Add an item instantly with just a couple of quick taps.

🔢 Calculate anything: units or weight

Enter a price, set quantity or weight (kg/lb) — CartSum does the calculation for you.

💸 Correct discounts every time

Apply percentage discounts to see the real final price of any item.

🧮 Real-time total

Your running cart total updates immediately with every item you add.

✏️ Edit items anytime

Fix mistakes or update quantity, weight, or discounts without starting over.

🧺 Perfect for grocery shopping

Calculate fruits by weight, multiple packages, discounted goods, and more.

💰 Stay within budget

Track your spending as you go and avoid checkout surprises.

🔄 Auto-save session

Close the app anytime — your shopping list and total stay saved.

🌍 Local currency support

CartSum automatically uses the currency of your region.

🔌 Works offline

No account, no internet, no ads. Everything runs on your device.