maxdrown.com CartCalc+
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CartCalc+ app icon

Know your total
before checkout.

CartCalc+ tracks your running cart total with state and local sales tax in real time — no surprises at the register.

Download on the App Store
Features

What's inside

Everything you need,
nothing you don't.

🧾
Real-time running total

Your cart total updates instantly as you add items — including state and local sales tax.

🗺️
All 50 states + D.C.

Built-in sales tax rates for every U.S. state and the District of Columbia.

📍
Local & county tax

Add your local or county tax rate on top of the state rate for fully accurate totals.

💰
Budget tracker

Set a spending limit and watch the progress bar — get alerted before you go over.

✏️
Editable items

Add names and quantities, then edit or remove any item at any time.

💾
Persists between sessions

Your cart is saved automatically. Pick up right where you left off.

Privacy

Private by design.

CartCalc+ collects absolutely nothing. No account, no tracking, no ads. All data lives entirely on your device.

No account required No location tracking No ads No analytics No third-party SDKs Data stays on device