Crosswind Labs

Software that holds its course –
even in a crosswind.

We build focused apps for people who make precise decisions under pressure: in the cockpit, in everyday life and in professional practice.

Our projects Contact

About

Small, independent, built from experience.

Crosswind Labs is an independent software studio based in northern Germany. Our ideas come from situations where existing tools fall short – drawn from first-hand experience in aviation and medicine. We turn them into lean applications that do one job really well.

Focus over feature creepEach app solves a clearly defined problem – nothing more.

Privacy by designAs little data as possible, no ads, no tracking.

Built by practitionersDeveloped by users, for users – and tested in real-world use.

Projects

What we are working on

Coming soon · in testing

Tavo

The calendar you run with sentences.

Tavo is a cross-platform calendar for Linux, macOS, Windows, iPhone, iPad and Android. You simply type events and tasks as a sentence – in English or German. Your data stays local and syncs with your own server. No account, no subscription, no telemetry.

“Dentist next Tuesday 3pm” becomes an event – with a live preview
Sync with Nextcloud, iCloud and any CalDAV server
Tasks with subtasks, dragged into your day as time blocks
Public holidays per region, school holidays side by side
Command line and optional AI – preferably running locally

tavo-calendar.app →

Tavo: week view with sidebar, calendars and tasks

Coming soon · web prototype

Cockpit One

Everything for the cockpit. In one app.

A companion for general aviation pilots, VFR and IFR: calculators, weight & balance, logbook, notes and manuals on your phone – fully offline, with no account and no server. Native apps for iOS and Android are in development.

35 calculators from pressure altitude to cold-temperature correction
Weight & balance from type certificate and flight manual – “green” only when the source is verified
Logbook according to EASA FCL.050 with carry-over and CSV export
Kneeboard notes by keyboard, finger or stylus
POH, checklists and charts readable and searchable offline

Not for operational use. The aircraft flight manual and official sources are authoritative.

Cockpit One: weight & balance in night mode

Contact

Get in touch.

Questions about our apps, interested in a beta, or an idea for working together? We look forward to hearing from you.