iOS 15.4 allows users to download and manage fonts—including high-quality "fixed-space" (monospaced) options—primarily through third-party apps and official Apple Developer Tools . While iOS 15.4 did not introduce a specific new system-wide monospaced font, it solidified the infrastructure for installing custom typography that can be used in compatible apps like Mail, Pages, and Keynote. Core Font Installation Methods for iOS 15.4
: Apple's SF Mono is the native monospaced variant of the San Francisco typeface. It features six weights and is optimized for legibility in technical environments. Downloading Custom Fonts : ios 154 fixed space font download extra quality
The direct download and installation of a system-wide fixed-space font on iOS are not straightforward due to Apple's closed ecosystem. However, developers can implement monospaced fonts within their apps, and users can explore app-specific options or third-party solutions that cater to their needs. iOS 15
The process for obtaining high-quality monospaced fonts involves two main paths: 12pt in Notes).
On iOS 15.4, you cannot directly install system-wide custom fonts. You can only:
let font = UIFont.systemFont(ofSize: 17, weight: .regular, traits: .monospaced)