[tremarley]

There are YouTube clones for iOS & Android that have Adblock, Shorts Block & Sponsor Blocks

[shadowpho]

Which ones for iOS?

[ecliptik]

Yattee

https://github.com/yattee/yattee

it requires either public or private Piped or Invidious instaces [1][2].

1. https://github.com/TeamPiped/Piped/wiki/Instances

2. https://docs.invidious.io/instances/