About this app
Calculate VAT or any tax easily. Enter any of the values and the other will automatically appear. Fast and easy.
Latest release
What’s New
Version 4.1
Jan 16, 2026
Two possible errors are fixed when attempting to write decimals in some languages.
Audience growth
Ratings growth
7-day gain
+0
Ratings / day
0.0
30-day gain
+0
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
Current
Free
Historical low
Free
Paid → free
0×
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 24, 2026 · 5:39 PM Free
Screenshots
