Apple lets you install, manage, and work with custom third-party fonts on your iPhone or iPad. It's a little complicated but worth the effort if you're a font aficionado.

cn-font-split 是 中文网字计划 所使用的字体分包工具，通过高性能的各种技术将庞大的字体包拆分为适合网络分发的版本 ...