Founder of a listed tool

Jonas Dücker

Co-founder, CMO and COO, named behind the ROOK listing on Anchor Terminal.

Co-founder, CMO and COO

No about written yet. If this is you, you can send us one, with a photo if you like, at the address below.

What Jonas builds

ROOK C · Health records & wellness data
ROOK Connect, from Rookeries Development Corp., collects health data from wearables and phone health stores, normalises it into sleep, physical and body summaries and events, and sends it by webhook or a REST API.
Co-founder, CMO and COO, researched 28 October 2026 · the people behind it

Works with

Daniel Martinez Co-founder and CTO
Jose Esquivel Co-founder and CQA
Marco Benítez Co-founder and CEO
Oscar Garcia Co-founder and CFO

Questions

Who is Jonas Dücker?

Jonas Dücker is co-founder of CMO and COO.

What does Rookeries Development Corp. make?

Anchor Terminal lists ROOK from Rookeries Development Corp.. ROOK Connect, from Rookeries Development Corp., collects health data from wearables and phone health stores, normalises it into sleep, physical and body summaries and events, and sends it by webhook or a REST API.

How are Jonas's tools graded?

ROOK is graded C, 55.1 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

Sources (3)

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.

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