About this app
RatioCalc is a fast, clean aspect ratio calculator for designers, photographers, and video creators. Enter any 3 of the 4 values in A:B = C:D and the last one calculates instantly. A live rectangle preview shows the proportions with diagonal angles at a glance. FEATURES · Real-time visual rectangle preview · Diagonal angles displayed automatically · 14 presets: Golden Ratio, Silver Ratio, A4, B4, 16:9, 21:9, 16:10, Cinema Flat, Cinema Scope, and more · Calculation history Great for scaling images, checking screen ratios, and verifying print dimensions.
Latest release
What’s New
Updated English app name
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 Aug 20, 2026 · 10:24 PM $0.99
Screenshots
