Proof

react-native-text-input-mask

native-seam only: the real TextInput wrapper runs from the bundle against RNTextInputMask formatting callbacks
70%
API coverage
No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.
Working
mask and unmask callbacks for required and optional digit, letter, and alphanumeric blocks; included literals; default-value and prop-change formatting; setMask accepts live TextInput refs
Missing (2)
the browser TextInput does not install the native per-keystroke mask watcherso cursor affinity and edit rejection can differ during live typing