TimeOn
Multiple Shared Calendars
Keep family, work, and friends in separate calendars under one app. An invite link is all it takes.
Time, Together. TimeOn.
One calendar for the people you share your time with.
What is TimeOn?
TimeOn is a shared calendar for iOS and Android, built for sharing from day one. Families, teams, and friends create and sync events on the same calendar across both platforms, with Korean lunar dates, public holidays in twelve countries, and precise recurrence — even offline. Start as a guest and switch to Apple or Google sign-in without losing data.
Features
3 Home-Screen Widgets
Today, Weekly, and Monthly widgets surface your schedule without opening the app.
Lunar Calendar
Korean lunar dates shown alongside Gregorian, with accurate lunar recurring events.
Holidays in 12 Countries
South Korea, the United States, China, Japan, India, Russia, Germany, France, Spain, Italy, Portugal, and Poland — official public holidays auto-imported, substitute days included.
Precise Recurrence
Weekly, monthly, yearly, and per-occurrence edits — recurring events that adapt to real life.
Offline-First
Works in the subway or in airplane mode. Syncs automatically when you reconnect.
Safe Sign-In
Start as a guest and switch to Apple or Google later, keeping all your data.
Screenshots
Frequently Asked Questions
Is TimeOn free?
Yes, TimeOn is free to download from the App Store and Google Play.
Is TimeOn available on Android?
Yes — TimeOn runs on both iOS and Android. Get it on the Apple App Store or Google Play. Signing in with the same account keeps your calendars in sync across devices and platforms.
Which languages are supported?
Korean, English, Japanese, Simplified Chinese, Russian, German, Spanish, French, Hindi, Italian, Polish, and Portuguese — 12 languages. You can switch in-app, regardless of system language.
Does it work offline?
Yes. TimeOn is offline-first — you can create and edit events without a network connection, and changes sync automatically when you reconnect.
How is TimeOn different from other shared calendar apps?
TimeOn organizes sharing by calendar — keep family, work, and friend calendars separate within one app. It ships with Korean lunar dates and holidays in twelve countries built in.
Where is my data stored?
Data lives on your device first, with two-way server sync when you sign in. Guests stay device-only.
How do I share with family or friends?
Create an invite link from the calendar editor and send it. When they open the link, they join the calendar automatically.
What widgets are available?
Three home-screen widgets: "Today" (today's events at a glance), "Weekly" (the full week), and "Monthly" (the entire month grid).
Download Now
Get on the App Store Get it on Google PlayView in another language