# nirsky/react-native-size-matters

A lightweight, zero-dependencies, React-Native utility belt for scaling the size of your apps UI across different sized devices.

Repository: https://github.com/nirsky/react-native-size-matters
Canonical: https://ross.abutalabs.com/products/react-native-size-matters
Language: JavaScript
License: MIT
License Family: permissive
Topics: javascript, react-native, scaling, tablet
Last push: 2023-10-03T09:23:09+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3207, "days_push": 1065, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2528, forks 158 (observed 2026-08-28T04:06:58.725832+00:00)

## What it is
A lightweight, zero-dependency React Native utility library for scaling UI dimensions across different device screen sizes. It provides scaling functions (scale, verticalScale, moderateScale) and a ScaledSheet so apps designed on a standard ~5" screen adapt to phones and tablets.

## Use cases
- make my react native app look good on tablets
- scale ui sizes across different screen sizes in react native
- responsive layout for react native phones and tablets
- scale font sizes and padding based on device screen
- avoid manually adjusting styles for every device size
- adapt a mobile app design to ipad screens

## When to choose
- you build React Native apps that must look consistent across phones and tablets
- you want a tiny, zero-dependency drop-in utility for size scaling
- you design on a standard ~5" screen and want simple linear or moderate scaling functions

## When to avoid
- you use Flutter, SwiftUI, or a non-React-Native framework
- you need full responsive layout systems like flexbox grids or breakpoint-based styling rather than simple size scaling
- you need web or CSS-based responsive design

## Facets
- artifact type: library
- maturity: stable
- function: ui-components, developer-tools
- domain: mobile-development, frontend, cross-platform
- platform: -
- tags: react-native, responsive-design, screen-scaling, ui-scaling, zero-dependencies, mobile, ios, android

## Member repositories
- nirsky/react-native-size-matters (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:58.725832+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:25:23.618894+00:00, confidence not recorded.
  - readme: https://github.com/nirsky/react-native-size-matters (fetched 2026-08-28T04:06:58.725832+00:00, sha 49a609763a32)
  - registry_npm: https://registry.npmjs.org/react-native-size-matters (fetched 2026-08-29T10:08:00.401880+00:00, sha 3d93e18deccc)
- Data as of 2026-08-30T08:39:29.467469+00:00.