Independent SaaS studio
From ideas to tools people actually use.
We’re two independent developers. We design and publish our own SaaS products: each one starts from a real need and only ships once it genuinely helps someone.
First product in the works
The studio
A product studio, not an agency.
Rinku Studio designs, builds and publishes its own online software. Every SaaS has its audience, its problem to solve and its reason to exist, all identified before the first line of code.
We own the whole chain: product, interface, code, hosting and support. Fewer middlemen, more consistency, and decisions made as close as possible to the people who use our tools.
- Founders
- 2
- Friends since
- 2020
- Studio launch
- 2026
- Product in the works
- 1
Our story
Two friends, one urge to build.
We’ve known each other since 2020. Software brought us together: projects built side by side, evenings spent testing ideas, tools hacked together for our own use.
In 2026, we decided to stop keeping those ideas on the shelf. Rinku Studio was born to turn them into products other people rely on every day.
Our rule hasn’t changed since: one product at a time, released only once it stands on its own.
2020
Where it started
Two developers who love their craft become friends and start coding together.
2026
The launch
Rinku Studio is founded with a clear ambition: publishing our own SaaS products.
TodayNow
Onbo in the works
Our first product is taking shape. The first updates land on Discord.
Our skills
Everything it takes to ship a SaaS.
No agency, no outsourcing: every building block of our products is designed and built by the two of us.
- 01
Frontend & UI
Fast, accessible and consistent interfaces, built on a design system shared by all our products.
- 02
Backend & APIs
Typed architectures, well-structured data and APIs designed to evolve without rewriting everything.
- 03
Security & infra
Authentication, encryption, continuous deployment and hosting we control end to end.
- 04
Product & UX
Framing the need, scoping the MVP and iterating on feedback from real users.
Our values
Three principles guide every product.
- 01
Clarity
Every screen should make sense within seconds. If a feature needs a manual, we rework it.
- 02
Craft
Code, interface and support deserve the same care. We’d rather ship later than ship something shaky.
- 03
Usefulness
We start from a real problem, never from a trendy feature. If nobody needs it, we don’t build it.
The team
Two developers, zero middlemen.
From product to support, the two of us do it all.
Full-stackSeishin
@seishiiinsan
- Commits (30 d)
- 142
- Public repos
- 3
- Followers
- 5
Main languages :TypeScriptSwiftGitHub profile
Full-stackMrSxnshxne
@mrsxnshxne
- Commits (30 d)
- 1
- Public repos
- 11
- Followers
- 7
Main languages :PythonRustJavaGitHub profile
GitHub stats updated on September 24, 2026
FAQ
What people often ask us.
Rinku Studio is an independent studio founded by two developer friends. We design and publish our own SaaS products, from the first idea to support.
No: we don’t build projects for clients, all our time goes into our own products. But if you have a partnership idea or just want to chat, write to us, we always reply.
Our first SaaS, Onbo, is in the works. We share every milestone on Discord: it’s the best place to hear about it first.
Join our Discord to follow our products’ progress, email us at [email protected] or check out our code on GitHub.
Contact
Let’s talk.
Discord is the easiest way: we share our products’ progress there and reply quickly. Prefer email? That works too.