Whisp

Whisp

Whisp is a Scalable Chat API for In-App Messaging

SaaS

Whisp is a scalable chat API that helps companies add real-time user-to-user and group messaging for their end users inside their app or platform — without building and operating a chat backend themselves.

Teams use Whisp to power direct messages and group chats, file sharing, reactions, read receipts, presence, and more through straightforward APIs and SDKs for web and mobile.

Every customer runs on an isolated, dedicated server cluster for predictable performance, strong data separation, and full privacy control.

Whisp is built in Germany and fully EU sovereign: the entire infrastructure stack is hosted in Germany with German cloud providers, designed for GDPR requirements by default, with optional global deployments.

whispchat.com
MVP
$0 TOTAL REVENUE
$0 RAISED

The Team

Leon Lenz

Leon Lenz

Founder

100%

4Y VESTING, 12M CLIFF

Co-founder role for Leon Lenz

ROADMAP

IDEA

COMPLETED

Core vision and mission mapping.

PROTOTYPE

COMPLETED

Functional blueprint and digital asset creation.

MVP

IN_PROGRESS

Public deployment and initial sector engagement.

REVENUE

PLANNED

Monetization protocol and billing systems active.

GROWTH

PLANNED

Scaling operations and regional expansion.

Vision & Strategy

"Ideas are easy. Execution is everything." — John Doerr

Project Revenue
$0Revenue
Project Funding
$0Raised

Creator

Leon Lenz

Leon Lenz

Looking for Co-founder!

I’m building Whisp: a chat infrastructure product that lets companies add in-app messaging between their own users (e.g., marketplace buyer↔seller, community members, players, creators↔fans, dating, SaaS user collaboration) into web, iOS, and Android apps. It comes with the core realtime building blocks out of the box (1:1 and group chat, media, reactions, read receipts, presence etc.) so teams don’t have to build and operate the messaging backend themselves. Each customer runs on an isolated, dedicated cluster with autoscaling for predictable performance and strong data separation. Whisp is fully EU sovereign: the entire infrastructure stack is hosted in Germany with German cloud providers.

I’m looking for a B2B sales cofounder who enjoys the early stage: getting into conversations, opening doors, and converting early interest into the first paying customers, helping Whisp accelerate especially in this beginning phase.