About

I'm Rohan. I build ρ1.

ρ1 makes focused tools for people preparing for what matters to them — an exam, a new skill, a change they've been planning. The kind of person who takes their own time seriously and would rather be ready than lucky.

What I'm building

Right now: certification flashcards for professionals pursuing advanced credentials. PgMP, PMP, CFA, CBAP, ITIL, and more — 11 apps, all offline-first, all free, no account needed. Cards reschedule themselves based on how well you recalled them, so every session is efficient.

More are coming. The rule doesn't change: each one does a single thing, fully, and is built to be lived with.

How I build

One thing done well. Your time and attention respected. And zero personal data collected — every ρ1 app keeps your data on your device.

Get in touch

A question, an idea, or feedback? Reach me at [email protected].