Apple Hides Predictive Text Restrictions

Apple maintains an undisclosed gray list of tens of thousands of words and phrases that its iOS keyboard restricts from autocomplete and swipe-typing features. The list includes political terms alongside vulgar language, according to a researcher.

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Derik Kauffman, the founder of Blacklight, a startup that finds errors in scientific papers, shows a list of Apple's secret autocomplete blocklist in San Francisco, California, US, October 20, 2026.  REUTERS/Manuel Orbegozo

APPLE INC hides an undisclosed multilingual gray list containing about 100,000 terms that its iOS keyboard refuses to autocomplete. The unpublicized restrictions cover political phrases alongside vulgarity and drug references across hundreds of millions of devices. The feature quietly shapes how users communicate by preventing phones from suggesting specific sensitive words.