What does Repeat Single Button look like on Apple?

On Apple it is the design shipped in iOS 26.4, shown above at full size. Older revisions are listed beneath it.

When did Apple add Repeat Single Button?

Apple first drew Repeat Single Button in iOS 5.1, released March 7, 2012.

Apple Inc. has shipped 25 versions of Repeat Single Button. Each is dated, so you can see when the design changed.

Apple iOS 10.0

This is the design Apple introduced in iOS 8.3, shipped again unchanged. It was not redrawn for this release.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Repeat Single Button look like on Apple?: On Apple it is the design shipped in iOS 26.4, shown above at full size. Older revisions are listed beneath it.
When did Apple add Repeat Single Button?: Apple first drew Repeat Single Button in iOS 5.1, released March 7, 2012.
How many times has Apple redrawn Repeat Single Button?: Apple Inc. has shipped 25 versions of Repeat Single Button. Each is dated, so you can see when the design changed.