Numio
com.rr.numio
Zapstore _@zapstore.dev A clean, open-source calculator with live results and unit conversion
Republished from GitHub / F-Droid by the Zapstore main account.
Numio is a clean, minimal calculator built with Kotlin and Jetpack Compose. No ads, no tracking, no internet permission — it never needs to talk to the outside world. Features: * Clean, minimal design with retro circular keys * Live results — see the answer as you type * Scrollable expression display, so long numbers are never truncated * Calculation history saved locally with a Room database * Built-in unit converter — Length, Weight, Area, Volume, Temperature, Time, Speed, Pressure * Theme customization — 12 preset accent colors plus custom hex input * Your chosen theme color is remembered across sessions * Hand-drawn custom app icon * A small hidden easter egg * 100% offline — nothing ever leaves your device This is a first solo project, built from scratch and open-sourced so anyone can use, inspect, or contribute to it.
First release: Oct 9, 2026, 1 total release.
Most recent release: Oct 9, 2026.
Appears in 0 app stacks.
0 sats / 0 zaps received in the past year.
Sats Received
Underlying data available via MCP: app_zaps, app_releases.
Zap Count
Underlying data available via MCP: app_zaps, app_releases.
Releases
- Oct 9, 2026 1.0.7- Fixed a crash when switching converter categories (for example Volume to Temperature) - Converter shows "Number too large" or "Not a number" instead of crashing or staying blank, and accepts a comma as the decimal point (1,5) - Converter result stays visible above the keyboard - Landscape: the result is no longer hidden and key labels fit their buttons - Custom colour: codes like GGGGGG now show an error - Results like 0.1 + 0.2 now show 0.3