NURUKSTUDIO

Small studio, real products, built with AI.

Nuruk Studio is an independent software studio based in South Korea. We make apps that stay with people in everyday life, and we share how we build them with AI.

2026Founded
South KoreaBased in
2Apps (1 live, 1 coming)
iOS · AndroidPlatforms
3Languages (EN, KO, JA)

Our name

Nuruk is the small starter that turns plain grain into something new.

In Korea, nuruk is the traditional fermentation starter behind makgeolli and other slow-made foods. It is easy to overlook, yet given time it transforms ordinary ingredients into something with depth.

That is the kind of software we want to make: quiet, not loud, but able to make ordinary moments a little more special each day, and better the longer you use it.

Mission and vision

Mission

To make small, honest software that people enjoy using every day. We care more about how a product feels in the hand than how many features it lists.

Vision

A world where a small team working alongside AI can build and run products that once needed an entire company. We want to prove it with our own work, and help many more people do the same.

What we believe

Small, honest, and built to last.

01

Small on purpose

Staying small lets us decide quickly and respond directly to the people who use our products.

02

Honest by default

Clear pricing, only the data we truly need, and no design tricks that work against the user.

03

Craft over volume

We would rather polish one thing well than ship many things half done. We test on real devices and keep refining.

04

AI as a teammate

AI helps us move faster, but people decide what to build and what good looks like.

What we do

App development

We create our own consumer apps end to end, from idea and design to development, launch and operation.

  • iOS and Android from a single codebase
  • Built for global users with multiple languages
  • Continuous updates long after launch

AI education

We are preparing hands-on courses that teach people to build real products with AI, based on how we actually work.

  • From idea to launch, step by step
  • Practical workflows with AI coding tools
  • For founders and solo makers, not only engineers

AI education program (in preparation)

We teach exactly how we work.

Hands-on rather than theoretical. The goal is for every learner to take their own idea all the way to a real launch.

01

Shape the idea

Define the problem and scope a first version with AI.

02

Build with AI

Build an app with Claude Code and learn to read and fix the code.

03

Quality and testing

Test on real devices and fix problems with evidence, not guesses.

04

Launch and run

Store review, payments, updates and everything after launch.

How we work

AI is part of every step.

We work with Claude as part of the team. It lets a few people build and run apps that would usually take many more.

01

Plan

We define the problem and shape the scope, reviewing ideas together with AI.

02

Build

We write, review and refactor code with Claude Code.

03

Test

We check everything on real devices before it ships.

04

Ship and listen

After launch, we listen to users and keep improving quickly.

Technology

Proven tools, and custom work where it matters.

We ship iOS and Android from one codebase, and write our own GPU shaders where quality matters most, such as photo processing. Every film effect in Tono runs in real time on the device.

Claude · Claude CodeReact Native · ExpoTypeScriptSkia GPU shadersSupabaseCloudflareRevenueCatSentry

Our apps

Two cameras for everyday moments.

Tono app icon

Tono

Live on iOS and Android

A film camera and editor, entirely on your phone. One tap gives a finished film look with no complicated editing, ready to save or share.

  • Film filters grouped by mood, with adjustable strength
  • Six tone sliders: exposure, contrast, saturation, temperature, highlights, shadows
  • Analog finishes: grain, vignette, light leak, fade and date stamp
  • Save favorite settings as My Filters
  • No account needed, and every photo stays on the device
  • One-time purchase, no subscription

English · Korean · Japanese

Dayin app icon

Dayin

Coming soon on iOS and Android

A group film camera that gathers everyone's photos from a shared day into one album. While you shoot, nobody can see anyone else's photos. When time is up, everyone's shots are revealed at once.

  • Shared rolls for weddings, trips, birthdays and parties
  • Choose a length from 3 hours to 3 days, with limited shots per person
  • Everyone's photos revealed together when time is up
  • Friends without the app can join from a link in their browser
  • Reactions, comments and a short recap video of everyone's shots
  • Shared only within the group, with no public feed

Milestones

What's next

Contact

Let's talk.

Partnerships, education inquiries, press, or just to say hello.

contact@nurukstudio.com