TgWsProxy

TgWsProxy 1.4.0.
Runs a local MTProto proxy for Telegram on the device itself. Not available on the App Store — installs through builds.io with a developer certificate.

TgWsProxy runs a local MTProto proxy for Telegram directly on your iPhone. Download the TgWsProxy IPA — it isn't on the App Store, so builds.io installs it directly.
Instead of pointing Telegram at somebody else's proxy server, the app hosts the endpoint on the device itself, so your traffic doesn't pass through a third party. Point Telegram at the local proxy and it connects through it.

Key features

Local MTProto proxy hosted on the deviceNo third-party proxy server involvedOpen source, published on GitHubNot available on the App Store
Get TgWsProxy on builds.io — download the IPA and install it on your iPhone in one tap, no PC.