Extensive diacritics input in iOS/iPadOS

Question

MacOS has an input method known as "ABC - Extended", which allows inputting most diacritics with any Latin letters. With it, "Alt" + various keys give a diacritic waiting to be composed, and pressing a letter produces the letter with the specified diacritic. For example:

Alt + E gives acute (´), which can be used to produce é or ń

Alt + U gives diaeresis (¨), which can be used to produce ü or ÿ

Alt + C gives cedilla (¸), which can be used to produce ş or ķ

Alt + B and Alt + V give breve (˘) and caron/háček (ˇ) respectively, which can be used to produce Romanian ă and Pinyin ǎ.

My question: is there a similar way to input various diacritics on iOS/iPadOS? All of the system keyboards seem just to offer a limited set of accented letters.

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Answer 1

The best way to have full coverage of diacritics is to get a hardware keyboard to go with the iOS device. Then you can just choose ABC Extended as your mapping.

Otherwise you have to search for a 3rd party keyboard (check the Keyman app) or use an app like Unicode Pad.

Answer 2

In iOS holding the letter down will present a choice of diacritics.

From https://www.igeeksblog.com/how-to-type-diacritical-marks-on-iphone-ipad/