Pinnacle📱 recently launched!

Launch YC: Pinnacle📱- RCS (Next-Gen SMS) API for developers
"Shop in text; programmable interactive, app-like text."

Founded by Sean Roades & Ivan Zhang

Hey everyone! Meet Sean and Ivan from Pinnacle.

They've launched their API to send and receive RCS (Next-Gen SMS) text messages natively on user’s devices. They're also launching an SDK for Python (`pip install rcs`). If you’re currently sending SMS, you should probably be using Pinnacle.

Here’s a quick example of how the founders used Pinnacle's API to sell their Founder Mode hats (certified by Brian himself 😉)

Image Credits: Pinnacle

The problem

Short: SMS sucks.

Long: SMS messages have high friction from sending a message to checking out a customer. Interactivity is very limiting with SMS.

The solution

Short: RCS rocks.

Long: RCS messages reduce high friction for customers to buy products with a single tap and add interactivity through buttons, card carousels, and actions.

Why now

This hasn't been possible until now. Apple rolled out RCS this week on iOS 18. Carrier adoption has been fully supported on all Android devices just this year. Carrier adoption for iOS completes in a couple months. Pinnacle segments by device so you can adopt RCS incrementally.

Learn More

🌐 Visit www.trypinnacle.app to learn more.
📣 Share - tell your friends & colleagues about Pinnacle.

🤝 YC Companies - reach out to the founders via email to join their private beta. You'll also get a free Founder Mode hat, designed by the founders, 1000 messages / month free, and their 24/7 #FounderMode support.

👣 Follow Pinnacle on
LinkedIn & X.

Posted 
March 14, 2025
 in 
Launch
 category
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