P4 Group — Independent Software Studio

We build and operateour own software.

P4 Group is a small, deliberate studio. We design products, ship them, and keep them running — a focused portfolio you can use right now. Most of it is live today.

2 products liveWork with us
PortfolioIndex / 3
P4 · 02Live

tiptap.one

The smartest tip tracker for servers — know exactly what you made every shift, with automatic calculations and a complete earnings history.

Open
tiptap.one
P4 · 03Soon

Shelvestack

Add reminders and to-dos in plain language, right from your chat. Shelvestack keeps them over MCP and emails each one back at the right moment.

Coming soon
shelvestack.com
The to-do list that lives inside your AI assistant

Launching soon. We’re putting the finishing touches on it.

P4 · 01Live

Tunly

See what people are playing right now, in real time, and find your next favorite through them.

Open
tunly.app