PRIVACY-FIRST · NO SERVERS · NO METADATA

Apps that don't
watch back.

01 THE LAB

What we build

Every application from PointBreakLab is built on the same principle: your data belongs to you.

LIVE
🔒

Whispr

PRIVATE BY DEFAULT

A messenger built so your conversations actually belong to you. No accounts, no servers, no phone numbers.

Explore
LIVE
❤️

Heart

LOCAL-FIRST WELLNESS

A wellness app for Bluetooth heart-rate bands. HR, HRV, sleep stages, recovery, strain. All on-device. No account, no cloud, no subscription.

Explore
🪢

Knot

PEER-TO-PEER VERSION CONTROL

Save a file. A few seconds later it's a real commit on every teammate's machine. No GitHub account, no central server, no four-step push ritual. Peer-to-peer over Tor.

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OPEN MODEL
✍️

Knot AI

TWO ON-DEVICE MODELS

A model family that runs on your machine: Knot Scribe writes your commit messages, Knot Delta explains what changed. Open weights on Hugging Face and Ollama.

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SOON
🧪

Elixir

OFFLINE VAULT · COMING LATER

An encrypted secrets vault: passwords, recovery codes, anything you'd lose sleep over leaking. Lives only on your device.

Coming Soon
02 PROOF

Receipts, not claims.

Privacy claims need evidence. These guarantees hold for every PointBreakLab app, by architectural choice, not company policy.

stack.txt
Storage SQLCipher · AES-256 · full-file encryption · on device
Server None · peer-to-peer or local-only by design
Accounts None · no email, no phone, no registration
Telemetry None · no analytics, no crash reports, no usage pings
Trust model Open algorithms · architecture, not policy
03 THE STUDIO

About PointBreakLab

PointBreakLab is a studio building privacy-first applications. Every app ships free, with zero access to your data, by design, not by policy.

Every tool starts from the same question: what would this app look like if we genuinely had no access to your data? Whispr is the answer for communication.

Roshan Kumar Gupta

Roshan Kumar Gupta

Software Engineer · PointBreakLab

Julius-Maximilians-Universität Würzburg Julius-Maximilians

📍 Würzburg, Germany

Map showing Würzburg, Germany

© OpenStreetMap contributors

Building in public
04 UPDATES

From the lab.

Product news as it ships.

KNOT

Jun 2026

Knot is here

Peer-to-peer version control for the AI era: save becomes commit becomes synced, with no central server. Free download for Mac and Linux on the Knot page.

KNOT

Jun 2026

Follow Knot from your phone

A companion mobile app streams every synced repo read-only over your LAN and pings you when a commit lands or an agent finishes a task. Keep an eye on the work from anywhere in the house.