About this app
Column addition calculator allows you to calculate adding (sum) of two numbers, using column addition method, and get a worksheet of column addition.
Latest release
What’s New
Version 1.0.1
Feb 16, 2023
Minor bugs fixed
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 23, 2026 · 10:50 PM Free
Screenshots
