Apps by Roman Konasov
Column subtraction method app icon

Education

Column subtraction method

Roman Konasov

Free download In-app purchases unconfirmed
Open on Apple

About this app

Column subtraction calculator allows you to calculate subtracting (difference) of two numbers, using column subtraction method, and get a worksheet of column subtraction.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 23, 2026 · 0 ratings Aug 23, 2026

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

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 23, 2026 · Free Aug 23, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 23, 2026 · 10:50 PM Free

Screenshots

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