About this app
Ideal for checking sales taxes on shopping and restaurant receipts, calculating tips, and knowing each state's tax rate when you travel. Easy to use. Just enter the subtotal, choose the tax, the tip, and it gives you the total. Automatically detects the taxes of all U.S. states, including its territories.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 2, 2026 · 6:36 PM $0.99
Screenshots
