又 vs 再

Both "again": 又 replays what already happened (他又迟到了), 再 schedules what has not (这件事明天再谈).

又

yòu ㄧㄡˋ

(once) again; also

radical 又 · and, also, again, in addition

A right hand, representing a pair; compare 左

stroke order · 2

再

zài ㄗㄞˋ

again; once more; re-; further; beyond this point of time

radical 冂 · wide

Two fish 冉 caught on a line 一

stroke order · 6

In LinZi, pulling up a comparison is one tap inside a review, no context switch, no lost queue position.