← UI/UXPersonal project
Mobile app · UX research & UI · 2026
Proof
A sourdough companion that plans your bake
around your kitchen, not the recipe’s.
TYPEPersonal project
SCOPEPersonas, interviews, user flow, wireframes, UI
PLATFORMiOS app
TOOLFigma
01 — The problem
Recipes give you hours.
Dough doesn’t read recipes.
Sourdough rises faster in a warm kitchen and slower in a cold one. The starter is stronger on some days than others. So the same recipe takes a different time in every home, and on every day.
I bake sourdough myself, and the hardest part was never the mixing. It was knowing when: when to shape, when to bake, and how to fit it around a working day.
02 — Personas
Home bakers with a day job
Lotte, 27
First-loaf beginner
“I followed the recipe to the minute and still got a pancake.”
Wants: to know what “ready” looks like.
Hates: guessing.
Joris, 38
Weekend baker, two kids
“The bread always wants me at the worst moment.”
Wants: steps that fit around family life.
Hates: 5 am alarms.
Amira, 45
The tinkerer
“I change one thing every week and forget what worked.”
Wants: a log she can learn from.
Hates: scattered notes.
03 — Research insights
The hard part is when,
not how
Recipes lie about time
Fixed hours ignore the kitchen, so bakers who follow the clock get flat loaves.
Baking fights the calendar
Overnight steps clash with work, sleep and family plans.
Beginners don’t know what to look for
Experienced bakers judge by sight and touch; new ones need those cues spelled out.
Notes live everywhere
Results are scattered across photos, phone notes and memory, so lessons get lost.
How might we let the dough, not the clock, set the schedule?
04 — The core idea
Tell it three things.
It plans the rest.
How warm is your kitchen?
When did your starter peak?
When do you want bread?
A schedule that fits your day
As the dough moves, the plan moves with it: one tap says “it’s ready early” or “it needs longer”, and every later step shifts.
05 — Five stages, one nudge each
- 1
Mix
Starter, flour, water, salt. Proof starts the clock.
- 2
Bulk rise
Reminders to stretch and fold, timed to your kitchen.
- 3
Shape
A photo check: does it look ready? Yes, or give it longer.
- 4
Cold proof
Into the fridge overnight; the plan sets a bake time.
- 5
Bake
Preheat reminder, then a photo for the bake log.
06 — User flow
One bake, start to log
07 — Wireframes to UI
Grey first,
then warm
The timeline and the timer ring were tested in grey. Colour then marks one thing: the step you’re on now.
08 — The bake log
Every loaf teaches
the next one
Each bake saves a photo with its kitchen temperature, flour and timings. Over time, Proof learns how your starter behaves and plans better.
09 — All nine screens
From first loaf to loaf fourteen. Every screen, its wireframe, the user flow and the design system are in the Figma file.
10 — Testing it
Five bakers, one weekend,
one loaf each
Diary study
Each baker follows a clickable prototype and notes every moment of doubt.
What I measure
Did the plan fit their day? How often did they change it? Would they bake with it again?
Success looks like
Fewer flat loaves, and bakers who say the schedule finally worked for them.
Let’s connect: verakarulina1@gmail.com