Hi Product Hunt! I'm the solo developer behind WristGram.

I wanted to go out with just my Apple Watch and still pick up Telegram calls. So I built a Telegram client for the watch from scratch in Swift: the MTProto protocol layer, the encryption, and the voice-call stack (ICE/TURN, Opus audio) all run on the watch itself. There's no TDLib and no server of mine in the middle; the watch talks to Telegram directly over Wi-Fi or LTE.

What you get:

• Two-way voice calls on Apple's native watch call screen

• Messages, reactions, voice notes (with speed control), photos, video, stickers, GIFs, polls

• Bots, inline bots and Telegram Stars payments, plus channels, comments, forum topics and stories

• Sign in with your phone number right on the watch, or with a QR code

• Multiple accounts; no ads, no analytics

Honest notes:

• It's unofficial and not affiliated with Telegram. Telegram released its own watch app in June (watchOS 26+), which is great for messaging. WristGram adds calls, bots and phone-number login, and runs on watchOS 11+.

• No video calls (watchOS doesn't give apps a video decoder) and no group calls yet.

• Free trial with no payment details, then $2.99/mo, $12.99/yr or $24.99 lifetime. Reading chats stays free.

I'd love feedback, especially from cellular/Ultra owners, on call quality and battery. Ask me anything about how calls work on a watch!