Calculation Studio

RGK apps develoer

About this app

Some calculations don't need their own app — they just need a place that doesn't get in the way. Calculation Studio is a single, quiet workspace built around one idea: open it, get your number, move on.

Instead of one calculator, you get five, laid out as a clean grid of tools you can jump between instantly:

- Percentage Tool — find what percent one number is of another, calculate a percentage of a value, or work out an increase/decrease between two figures
- Ratio Tool — simplify any ratio down to its lowest terms, and see it instantly as an equivalent fraction and percentage
- Average Tool — drop in a list of numbers and get the mean, median, or mode, or run a proper weighted average when not every number counts the same
- Discount Tool — enter an original price and discount percentage (even stacked discounts) to see the real final price and exactly how much you saved
- Arithmetic Tool — a straightforward expression calculator with memory (M+, M−, MR, MC) for quick everyday math

Every calculation you run is quietly saved to a history log, grouped by day and tool, so if you need to revisit yesterday's discount math or last week's average, you can tap it open with the original numbers already filled in — no retyping, no guessing what you entered.

The interface itself is built to disappear: sharp, minimal cards, a faint blueprint-style grid in the background, and one clear action button per screen, so the only thing that ever really stands out is your result.

Whether you're double-checking a sale price, splitting an average across a messy list of numbers, or just need a ratio simplified fast, Calculation Studio keeps it precise, uncluttered, and exactly where you need it.