Apple’s iPhone keyboard appears to maintain a vast multilingual “gray list” of words and phrases it will not recommend through predictive text or reliably recognize through swipe-typing. The discovery includes obvious profanity and references to drugs, sex, and violence—but also politically charged phrases such as dictator Trump, sleepy Joe, and covid is a hoax.
Independent researcher Derik Kauffman identified the collection while examining iOS keyboard data, eventually publishing language-specific lists that contain more than 100,000 entries by a conservative estimate. The total does not include Chinese characters, and the number changes depending on whether variations and permutations are counted individually. The hidden iOS autocomplete list is not a conventional censorship system: users can still enter the terms manually, one letter at a time.
The distinction matters because Apple’s keyboard has several different layers of text assistance. Predictive text proposes words and phrases above the keyboard, while autocorrection can replace an entry and QuickPath lets users slide across letters instead of tapping each key. Apple’s own documentation says those features can be switched off independently, and that users can reject a correction or continue typing their preferred wording. Apple’s support documentation describes predictive text as a system influenced by typing patterns, past conversations, and websites visited in Safari.
Some of the list’s politically sensitive entries are especially conspicuous because they do not fit neatly alongside slurs or explicit material. Other examples reportedly include left wing conspiracy, which swipe-typing may transform into “left wrong conspiracy,” as well as references to Tibetan independence, United Ireland, and occupied territories. Reuters testing also found unusual substitutions involving phrases such as “Tibetan independence” and “United Ireland.”
Apple said the keyboard is designed to avoid offering potentially inappropriate or offensive suggestions, while emphasizing that people remain free to type whatever they choose. That explanation accounts for much of the list, but not necessarily every surprising entry: the collection reportedly includes comparatively ordinary phrases and uneven pairings, such as blocking “bad girl” while leaving “bad boy” available.
For iPhone users, the practical effect is less a ban than an invisible bias in the writing interface. Someone composing a message can still express a controversial opinion, but the keyboard may decline to help complete it—or silently steer a swipe gesture toward a different phrase. Kauffman’s full lists make that hidden editorial layer inspectable, raising fresh questions about how Apple curates language across regions, how often the data changes, and whether users should receive more control over the words their keyboard will suggest.
