GRCSAC.

A studio, not a single practice

Tools for how people lead, move, and build.

GRCSAC began as a leadership practice. It has grown into a small studio building products and practices that all circle the same idea: helping people become more capable, and kinder about it.

Founded by Paul Zarou · leadership coach and author of six books.

What we’re building

Established

Leadership Coaching

Executive coaching and six books on compassionate, durable leadership.

coaching.grcsac.com →
Now available

In The Zone

Heart-rate zone training for iPhone and Apple Watch. Read your effort by colour.

inthezone.grcsac.com →
Now available

Fit This

A gym app that grows with you — honest, evidence-based coaching from your first rep to your fifth year.

fitthis.grcsac.com →
Now available

PavLove

A gentle tap on the wrist the moment an old habit takes over, so you can catch it and let it go.

pavlove.grcsac.com →
Now available

CySec

Thousands of security problems are reported every month. CySec tells you which handful are actually yours.

cysec.grcsac.com →
Now available

NextFix

A scanner lists a thousand vulnerabilities. NextFix reads your code to find the few an attacker could reach, and records why the rest can wait. Free and open source.

nextfix.grcsac.com →
Now available

Sunk Cost

What is this meeting costing? Add the room by job title, start the meter, and end with a receipt you can share.

sunkcost.grcsac.com →
Open

Collaborations

Some of it we build with partners who care about the same thing. See who, and start something new.

See collaborations →
Coming soon

Findr

Rate what you love on gut feel, and get picks from the people whose taste actually matches yours.

findr.grcsac.com →
Coming soon

Game Studio

Original games, made small and finished properly. First up: Zelzi, an iPhone card game where your own photos become the cards.

games.grcsac.com →
In development

CineDrive

The films you already own, on the screen already in your car — through CarPlay, while parked.

cinedrive.grcsac.com →

One thread runs through all of it.

Every one of these started the same way: watching people try to get better at something hard, and asking what would actually help.

Coaching does it in a room. In The Zone does it on a run, turning effort into a colour you can read at a glance. PavLove does it in the half-second before a hand reaches for a snack. Findr does it through taste, pointing you toward what you’d actually love and the people who love it too. Fit This does it in the gym, coaching when you want it and getting out of the way when you don’t. CySec does it with security, turning a month of reported vulnerabilities into the handful that are actually yours. The craft is the same throughout: take something people find daunting, and make the honest, humane version of it.

Some of it we build alone. Some of it we build with partners who care about the same things. Either way it goes out under one name: a GRCSAC collaboration.