Product logic
The shape of the product before a single screen exists — flows, states, edges.
[ Independent design practice ]Interfaces, identity and the systems underneath them.
Interfaces, identityand web systems—drawn sharp, builtto hold up.
Ostro is a two-person studio in Warsaw. We shape product thinking, visual direction and front-end craft into one continuous line.
[ Let's talk ]Est. 2016Move your cursor across the headlineScroll ↓
Five projects, each shaped as a system.
Hover a line to see the surface. Every engagement ran from first sketch to shipped build.
- 01FieldnoteResearch platform for climate teams. Product logic, interface system and build.2026 · SaaS
- 02HalvaDirect-to-table food brand. Identity, packaging direction and storefront.2025 · Brand
- 03NorthlineRail booking flow rebuilt around one decision per screen. 41% fewer drop-offs.2024 · Product
- 04KantoA component library and token set five product teams actually use.2022 · System
- 05Mokotów 44Residential launch experience — art direction, motion and front-end.2021 · Web
Surface is what people see. System is what keeps it standing.
Four disciplines,
one line
Visual direction
A language with rhythm and restraint: type, grid, colour, motion.
Front-end craft
Interfaces built into fast, accessible, stable working form.
Systems that last
Reusable structures documented to survive the next three teams.
One continuous line from idea to working form.
IdeaWorking form
We are two people and we stay two people. No handoff between the person who draws it and the person who builds it — the line stays intact.
Ten years between us in product design and front-end engineering, most of it spent on tools people use every working day. We take two engagements at a time.
- Founded
- 2016 · Warsaw
- Team
- Two
- Engagements
- 6—20 weeks
- Availability
- Q4 2026
Let's shape something precise.
hello@ostro.studio
Tell us what you're shaping — one paragraph is plenty. We reply within two working days.