Block Daily
Puzzle gamePlace blocks on an 8×8 board and clear lines. A Daily Challenge gives everyone the same blocks each day.
▶ Play on the webComing to Toss
JWorld · 제이월드
We build small services
We build small services
you come back to every day
JWorld is a software studio that plans and builds web and mobile apps, Apps in Toss mini apps, and casual games. A few minutes a day is all they take — which is why people return to them daily.
Products
What we've made
Lightweight services you can use instantly — no sign-up, and your data stays on your device.
Daily Spelling
LearningFive Korean spelling and spacing questions a day, with a review notebook for the ones you missed.
Coming to Toss
Today in One Card
Daily infoLocal weather, air quality, holiday countdowns, and what to wear — all on one card.
Coming to Toss
Fortune Note
LifestyleDaily zodiac fortunes, a tarot card a day, and dream interpretations at a glance.
Coming to Toss
What we do
From idea to launch, and beyond
We turn ideas into real products fast, then automate the operations so they keep running with little hands-on work.
Web development
Fast, responsive web apps and PWAs, built on static and serverless stacks that keep running costs near zero.
Mobile apps
Native iOS and Android apps, and WebView-based hybrid apps.
Mini apps & games
Apps in Toss mini apps and HTML5 casual games — built once, shipped to many platforms.
Custom software
Workflow automation, data collection and processing pipelines, and tools tailored to your needs.
How we work
Our principles
Start small, ship fast, and grow in the direction users pull.
Small and fast
We launch focused products first, then decide what's next from real usage.
Minimal personal data
No sign-up where possible, and records stay on the user's device.
Steady through automation
Content and data refresh automatically, so our services stay fresh every day.
Have something in mind?
Product questions, partnership ideas, and bug reports are all welcome. We usually reply within 1–2 business days.