Why doesn’t fancy text work on accented letters on iPhone?
Style café or résumé in bold or script and the accented letter is the one that refuses to change. The plain 26-letter alphabet these styles are built from was never given accented versions, so the gap is not a bug in any one generator — it is a hole in Unicode itself, and it hits some languages far harder than others.
You style a word in bold or script on the keyboard and most of it transforms — except one letter, usually near the middle, which sits there in its ordinary, unstyled form as if it got skipped by mistake. Type café in bold and you get 𝗰𝗮𝗳é: three bold letters and one plain one, wearing its accent like nothing happened to the rest of the word. It looks like a glitch. It is not one, and no update or different generator fixes it, because the letter was never convertible in the first place.
The alphabet behind fancy text is 26 letters, full stop
Bold, italic, script and the rest of iPhone’s fancy text styles are not fonts — they are separate Unicode characters, each with its own fixed position in the standard, that happen to already look bold or italic or circled. When Unicode set aside a block of codepoints for a style, it assigned a-z and A-Z, and for a few styles the digits 0-9. That is the entire set. There is no MATHEMATICAL BOLD LATIN SMALL LETTER E WITH ACUTE, because nobody ever created one — the block only ever had room for the plain alphabet it was built for.
Why not just add the accented versions
Because the plain alphabet is 26 letters and the accented one is not. Once you count every letter with a diacritic used across the languages this affects — é è ê ë, á à â ä, ñ, ç, ü ù û, ø õ, ß, and the rest — the set balloons past a hundred characters, and that is before multiplying it by every fancy style that would need its own matching version. These Unicode blocks were built for mathematical notation in the first place, to tell a bold vector apart from an italic scalar in an equation. Nobody sat down to design a decorative alphabet for typing café in a bio, so nobody scoped it for the languages that actually need accents.
What happens to that one letter instead
With no matching character to substitute, a fancy text converter has exactly two honest options for the letter it cannot convert, and both are visible in the result: leave it as the ordinary, correctly accented letter sitting inside an otherwise-styled word, or quietly drop the accent and style the bare letter underneath it, which is worse — café would come out as 𝗰𝗮𝗳𝗲, no longer spelled the way you typed it. A less careful implementation can also try to force a Unicode combining accent mark onto the styled letter, which frequently misaligns because those marks were designed to sit on ordinary letters, not on characters from a mathematical symbol block.
It is not just bold, and not just accents
Every fancy style built this way hits the same ceiling, because they all draw from equally narrow ranges. Script, double-struck, monospace, wide text and the rest carry the identical gap for accented letters. Some styles stack a second, unrelated gap on top of it: small caps has no Q at all, squared has no lowercase letters, upside-down text has no true match for several ordinary letters either — gaps that exist independently of accents, for the exact same reason. An accented letter in a style that is already missing pieces elsewhere just has more ways to come out looking untouched.
Which languages actually run into this
English mostly dodges the problem — a handful of borrowed words like café, résumé, jalapeño or piñata are close to the extent of it. Languages built around diacritics are not so lucky. French carries é, è, ê, à and ç through ordinary sentences. Spanish and Portuguese lean on á, é, í, ó, ú and ñ or ã. German needs ä, ö, ü and ß. Vietnamese stacks two diacritics on a single vowel in normal writing. Polish, Czech, Turkish and the Nordic languages each carry their own set. Style a full sentence in any of them and there is a good chance every few words has a letter that simply cannot change, no matter which fancy text tool is doing the converting.
Where Kibo fits
Kibo puts 12 fancy text styles on the iPhone keyboard itself, generated as you type rather than through a separate site. For the letters each style can actually convert, that happens instantly; for the accented letters a given style has no match for, Kibo leaves that one letter in its normal, correctly accented form instead of silently dropping the accent or forcing a mismatched combining mark. Numbers, punctuation and emoji pass through untouched the same way. It is free to download and works with Full Access left off, since fancy text is generated on the keyboard and never touches the clipboard.
Frequently asked questions
Is it a bug that my accented letters won’t turn bold or italic?
No. The bold and italic Unicode blocks only ever assigned the plain 26-letter alphabet, with no accented versions. There is no character for a generator to substitute in, on iPhone or anywhere else, so the letter cannot convert regardless of which app or keyboard is doing it.
Which fancy text styles are worst affected by this?
All of them carry the same accented-letter gap, since they are all built from similarly narrow Unicode ranges. Styles that are already missing other pieces — small caps has no Q, squared has no lowercase letters at all — simply pile a second gap on top of the first.
Does this affect numbers, punctuation or emoji too?
No, this gap is specific to accented Latin letters. Numbers, punctuation and emoji are a separate matter — most fancy styles either pass them through unchanged or, for styles like bold that do have matching digits, convert them normally.
Try it on your own keyboard
Kibo is a free custom keyboard for iPhone with real mechanical key sounds, a wardrobe of themes and RGB backlight effects. No account, no ads, and it works with Full Access left off.