Proof

@domir/react-native-measure-text

native-seam only: the published wrapper runs unchanged over a ReactNativeMeasureText expo module whose synchronous measureWidth uses the same text measurement the layout engine uses, so a measured width matches what renders

90%

API coverage

No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.

Working

synchronous measureWidth(text, style) honouring fontFamily, fontSize, fontWeight, and letterSpacing; the older RNMeasureText TurboModule measure(texts, fontSize, width) with upstream’s invalid_width/invalid_texts/invalid_fontSize rejections

Missing

allowFontScaling is accepted but has no OS text-size setting to scale by, and the legacy TurboModule multi-line heights come from a character-width approximation rather than real line breaking