Catyobi Studio

the challenge

Health tracking shouldn't feel like homework.

A flare-up here, a bad night's sleep there, a food that didn't sit right — the moments that matter end up scattered across mood, energy, and guesswork. By the time you're sitting in front of a doctor, the details are gone.

Most tracking apps answer this with dashboards, streaks, and red warning badges — turning gentle noticing into one more thing to keep up with, and quietly making people anxious about their own bodies.

01signals scattered across mood, sleep, energy, and meds
02patterns you only notice once they're a problem
03the details forgotten by the time they matter
04tools that feel clinical, cold, and a little alarming
05turning daily noticing into something actually useful

my role

Design and build, end to end.

Signals is a studio project, so I owned the whole arc — from the first user conversations to the shipped TestFlight build.

UX Research Product Strategy Information Architecture Interaction Design Design System AI-assisted Product Development Rapid Prototyping

design process

From a question to a shipped build.

01Research

→

02Concept

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03Wireframes

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04Prototype

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05Iteration

→

06Product

An early Signals home screen — script headings, a teal check-in card, and cycle/streak tiles — fig — an early direction. Script headings, streaks, and a cycle tile that later got cut in favor of something quieter.

Signals component sheet — buttons, grouped lists, text fields, toggles, segmented controls, tags, and category chips — fig — the component system behind the wireframes: buttons, lists, fields, toggles, chips.

Future components spec — charts, calendar, notifications, insights, PDF export, AI analysis, wearables, HealthKit, food triggers — fig — a living spec: components anticipated so the system scales as Signals grows.

key features

Everything you need. Nothing that nags.

01One daily check-inA single question a day. Choose the categories you care about — every log takes about ten seconds.

02Medication trackingLog what you take and when. Signals quietly measures how it lines up with the rest.

03Trends without alarmCalm charts that surface what connects — no scores, no red flags, never a diagnosis.

04A summary for your doctorExport a plain, honest summary of what you've logged — so the details are there when they matter.

05One gentle reminderA single nudge at the time you choose — easy to soften, easy to turn off.

06Private by architectureNo account, no cloud, no sync. Your data lives on your phone — there is nothing to leak.

gallery — screen by screen

Choose what to track — tracking categories

lessons learned

The hardest part of a health app isn't the data. It's the tone.

Every feature I removed made Signals better. The instinct in productivity and health tools is to add — more charts, more scores, more encouragement — but people tracking their own bodies are often already anxious, and each extra number is one more thing to feel behind on.

Balancing simplicity with flexibility meant letting people choose what to track without ever making the empty spaces feel like failure. Testing taught me that reassurance is a design decision — the calm is engineered, one omitted red badge at a time.

now in second beta

Help shape the second beta.

Signals is entering its second beta, and this is the part I care about most — living with it for a few weeks and telling me what feels right and what doesn't. It's less a product launch than an open invitation to build the calm version of this together.

join the second beta ↗ or send a thought →

what beta testers do

→check in for a couple of weeks

→tell me where it feels heavy

→help decide what stays out

iOS · TestFlight · free

explore another project

OpenLoops A gentler way to keep track of unfinished things. Dreamaker Onboarding that helps people say what they're dreaming of. Catyobi.com This website — the studio designing its own home.

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