I can only speak for the iPad IME, but generally I just type the word I’m after and it’ll pop up with the iteration mark as one of the suggested options. For example, typing ひとびと gives me 人々. My IME recognises 宵々 but not よいよいよい, and I’m not entirely sure what to make of it myself. My dictionary doesn’t know what it is either. What exactly is it meant to be?

[Edit] Ah. It’s apparently the third night before the Gion Matsuri. Those silly common people and their colloquial speech. [/Edit]

I managed to type the iteration mark on its own by writing きごう (= “symbol”) and scrolling, but it’s a little tedious, because there’s a lot of symbols. Typing おどりじ (one of its formal names) only yielded the 〻 symbol, and none of the other names give me anything – though by the time you’re typing that much to get it, it’s easier just to type ひび to get 日々 and then delete the 日.

• This reply was modified 10 years, 11 months ago by  Joel.

Hmm, I’ve been typing おなじ whenever I need a single 々 on the Google IME. But as Joel said; just typing the word is the thing to do.

@Astralfox: I actually tried おなじ first, but I think I pushed “down” instead of “space” and that’s why it didn’t show up. I think I’ve only just realised that space gives you a list of kanji while down gives you a predictive text feature >.<

@Pindy: I think Joel’s method is good, typing 日々（ひび）then deleting the 日. I’d do similarly if I want to type a single kanji that doesn’t appear as a word by itself, like writing 濯 via 洗濯機.