Small, precise apps that answer one question honestly.
Each app answers the question you would otherwise guess at: the state you are in now, or an estimate of what is ahead.
A foundry, not a studio: shared infrastructure, one operating doctrine, and apps that stay small on purpose. Free is usable on its own. Paying unlocks structure, not the exit.
What every app must do
- 01Answer one question — and say which one.
- 02Lead with the answer — the state you are in now, or an estimate of what is ahead.
- 03Show its working — the rules, or the evidence, that produced it.
- 04Say when it cannot tell — and get better as evidence arrives.
If an app does not do all four, it does not ship.
Apps
Readiness for official tests — citizenship, driving theory, amateur radio. An estimate with its range, and what to study next.
In review · see how it worksMedication timing windows: what is due, what is still too early, and what to do when a window is missed.
In buildAbout
Mike Oustamanolakis, PhD — systems strategist. I make complex subjects understandable.
Design and strategy work across Europe and Asia since 2004: independent practice through Amsterdam, Athens, Gothenburg, Helsinki and Shanghai; seven years running a product company in Hong Kong and a doctorate from The Hong Kong Polytechnic University on measuring design capability. Now digital transformation and systems strategy at a UK university, where I also teach design and systems thinking.
128 Systems is the same work at the size of a phone screen: take a situation people are guessing their way through, find the one question underneath it, and answer that one properly. More at mikko.gr.