===Why are we doing this?
Currently the history page on iOS only provides an overview of the revision history, but does not allow users to interact with individual revisions or compare revisions.
===User story
As an editor on the iOS app who has received a notification regarding an edit I made, I need to be able to access history and diff pages in order to be able to have context around my reverted edit.
As an editor on the iOS app who has received a notification that there has been a change to an article that is on my watchlist, I need to be able to access history and diff pages in order to review or revert the change.
As a reader using the iOS app, I would like to be able to access history and diff pages in order to better understand how an article has changed over time and to learn more about who has been contributing to an article.
===Overview of proposed designs
| History page | Selecting revisions | Individual revision | Diff / Comparing revisions
|--- |--- |--- |---
| {F30119728 width=220} | {F30119734 width=220} | {F30119736 width=220} | {F30119742 width=220}
| Zeplin: https://zpl.io/VqLEArl | Zeplin: https://zpl.io/V19wKyE | Zeplin: https://zpl.io/25AwRer | Zeplin: https://zpl.io/VYoBN6L