BtoB DX × Micro SaaS Studio / Kyoto
AI and UX,
at work in your
company.
CosmoSketch is a Kyoto-based studio. We use the BtoC products we run in-house as a working lab, then carry the AI and UX design knowledge into corporate operations work.
A field-reporting system in a week. An ad-ops CMS in two months. Small team, real systems, moving.
View DX services- Based in
- Kyoto
- Founded
- 2022
- In-house products
- 6
- Focus
- BtoB DX × Micro SaaS
Why CosmoSketch
We learn by shipping,
then bring it to the field.
CosmoSketch operates six in-house Micro SaaS products. The day-to-day learnings from running them — what works, what breaks — fuel our DX engagements for companies. We don't experiment on client projects.
Hands-on shipping
LLM unpredictability, UX dropout points, infra pitfalls — we only talk about what we've already tripped over ourselves.
Trustworthy proposals
We only recommend technology we are personally running in production. No spec-deck-to-invoice projects.
Speed and granularity
Because we run the prototype-to-production loop ourselves with a small team, client engagements also deliver running software in weeks, not quarters.
We're available for BtoB engagements covering everything from technology selection through implementation and operations.
View DX servicesOperational DX & Lightweight Internal Systems
DX & Operational Improvement
When Excel dominates, SaaS doesn't fit, and traditional IT is too heavy—
we design systems that actually work in real operations, not just in theory.
The focus is not technology, but making operations actually run.
Operations-First Design
Understanding real workflows before building anything.
Minimal Systemization
Forms, admin screens, automation, notifications—no overengineering.
Operational Completeness
Not just delivery, but usability in real work.
Typical Use Cases
- ・Multi-stakeholder operations (BtoB, BtoBtoC)
- ・Complex submission, approval, and review workflows
- ・Operations where Excel/email/Slack has reached its limit
- ・Cases where SaaS was introduced but not adopted
What We Build (Examples)
Input forms (including no-login)
Admin screens (progress/status)
Automation & scheduled tasks
Notifications (Slack/Email)
Lightweight system architecture
Research & Development
Our in-house
Micro SaaS Lab
Every technology we recommend in client engagements is something we run ourselves first.
We operate six BtoC products spanning fashion, sports, music, productivity, and shared scheduling — each one a testbed for AI × UX design choices. Implementation feel, user dropout points, ops cost trade-offs: we want to have already worked through them before bringing a recommendation to a client.
View all productsDollMe
AI stylist that suggests outfits from weather and schedule
Batty
AI coach that analyzes batting form in motion
Tune day
Playlist generator tuned to your situation
Remady
Auto receipt-send reminder
Privue
Shared calendar for work + personal schedules
Accumo
Estimate-support tool for early-career professionals
Insights
Watching what AI × business looks like in the wild.
Studio
A small studio based in Kyoto.
CosmoSketch works at the intersection of AI and UX design, splitting time between our own products and corporate DX engagements. We run prototype-to-production end-to-end with a small team, which means we can engage quickly on small projects and on the larger cross-functional ones with the same cadence.
Founder
Tenrei Takino
Founder & CEO
A hands-on founder who personally writes the product spec, the UX, and a fair amount of the code. Treats AI not just as a consumer but as something to actually deploy — and stays on the front line for both in-house and client work.
Recent updates
No press releases here — just things that actually happened.
- Launched Insights section
- Released Privue (shared calendar)
- Released Remady (receipt reminder)
Get in touch
Let’s create the future together.
DX engagements, product collaborations, R&D conversations, media inquiries — please reach out. Same-day at best, 1–3 business days otherwise.
Contact usUpdates
Get a note when we ship a new product or publish an Insights article.