FastMake · TK Media · Seoul

Apps that do one thing well, shipped to real app stores.

We plan, build, and launch mobile apps that do one thing well. Three apps are live on the App Store today, and our first game is on the way.

Apps released
3
Platforms
iOS, Android
Founded
February 2026
Location
Seoul, South Korea
TagDo app icon

TagDo

Organize your to-dos with tags, and never miss a deadline.

Productivity · Free · iOS, Android

Tags & colors

Sort your to-dos with your own tags and see everything under a tag in a single tap.

Due-date reminders

Reminders arrive on time and are restored even after the device restarts.

Themes, 5 languages

Supports light, dark, and system themes. Korean, English, Japanese, and Chinese.

Fully offline

Your data stays on your device and is never sent to a server.

Download TagDo on the App Store Get TagDo on Google Play

Available worldwide on the App Store and Google Play.

TagDo to-do list screen with tag filtersTagDo screenshot 2TagDo screenshot 3TagDo screenshot 4
HabitCell app icon

HabitCell

Small daily records, steady change.

Productivity · Free · iOS, Android

+1 / −1 tracking

Log today’s count with a single tap and see when you reached your goal.

Heatmap

See your patterns at a glance by week, month, year, or all time.

Streaks & stats

Overall and per-habit streaks, plus stats for the last 7 and 30 days.

Your own categories

Set categories and colors; reminders and app icon badges are supported.

Download HabitCell on the App Store Get HabitCell on Google Play

Available worldwide on the App Store and Google Play.

HabitCell screenshot 1HabitCell screenshot 2HabitCell screenshot 3HabitCell screenshot 4
GlucoInsight app icon

GlucoInsight

Check your diabetes risk and find a hospital nearby.

Health & Fitness · Free · iOS, App Store (Korea)

Risk reference

Get a reference estimate of diabetes risk in Quick or Detailed mode.

Automatic BMI

Enter your height and weight and your BMI is calculated automatically.

Nearby hospitals

Search for hospitals around a saved address and open directions.

Health guide

Reference ranges, daily-life guidelines, and emergency tips.

Download GlucoInsight on the App Store (Korea)

Available on the App Store (Korea). GlucoInsight does not diagnose or treat any condition; results are for health-management reference only.

GlucoInsight quick risk estimate input screenGlucoInsight screenshot 2GlucoInsight screenshot 3GlucoInsight screenshot 4

Coming soon · Our first game

A casual match-3 puzzle on an 8×8 board, set among ancient ruins beneath a starry sky. Swap stones, keep your combos going, and trigger special stones that clear the board.

Coming soon to iOS, Android, and web
Modes
Endless, Level, Timed
Platforms
iOS, Android, Web
Engine
Flutter + Flame
Languages
5 (including English, Japanese, Chinese, and Korean)

About FastMake

FastMake is the app, web, and game brand of TK Media.

Mission

We build fast and verify carefully. We turn ideas into focused, polished apps and games quickly, and test them thoroughly before release.

How we build with AI

We use AI coding agents such as Claude, along with generative AI tools, across development, including planning documents, code, testing, art, sound, and localization. Every deliverable is verified with automated tests and playtest bots before release.

Tech stack

FlutterDartReactNext.jsUnity3DRiverpodFlameSQLiteHivePush notificationsLocalization in 5 languages

Let’s talk.

For questions about our apps, partnerships, or anything else, send us an email.

[email protected]