Semjigi Calendar app

On PC and phone too,
a calendar that shows your money.

Events, budget, automatic fixed expenses, diary decorating and 154 calculators on one screen. The desktop app can be installed right now, and the Windows program and store apps are on the way.

Coming soon
The Windows program (.exe), Google Play and App Store apps aren't released yet.

Those download buttons open at launch. Install the desktop app right now to use every feature free, and move everything to the program or store app later with a 💾 backup file.

Use it on the web now

Where will you use it?

The same Semjigi Calendar on PC, Android and iPhone.

💻
Windows program.exe · Windows 10 / 11
Coming soon
  • Semjigi Calendar opens right from your desktop
  • Lives in the tray · always on top · transparency, like a widget
  • Today's and tomorrow's to-dos as Windows notifications
  • Opens without internet
Download Coming soon
▶
Google PlayAndroid phones & tablets
Coming soon
  • Calendar and budget straight from your home screen
  • Push notifications for deadlines and payday
  • Decorating sized for phone screens
Download Coming soon
📱
App StoreiPhone · iPad
Coming soon
  • Semjigi Calendar for iPhone and iPad
  • Deadline and payday notifications
  • Diary decorating on the big iPad screen
Download Coming soon
🖥️
Desktop app · webChrome · Edge · Safari (PC & phone)
Available now
  • Every feature free, right now
  • Install from Chrome or Edge and open it from a desktop icon
  • Opens in its own app window, usable alongside the web
  • On phones, add it to your home screen
Open on the web

What you can do with Semjigi Calendar

The web, program and apps all have the same features.

Drag to schedule

Drag across empty cells for multi-day events, drag an event to move it. Month, 2-week, list and year views, plus A4/A5 printing.

Your budget on the calendar

Each date shows that day's income and spending in the top-right corner. Drag a category onto a date to log it instantly.

Fixed expenses logged automatically

Register rent, phone bills and savings once. They're logged automatically on the day, and show as planned before that.

Diary-style decorating

30 themes · 34 washi tapes · 150+ stickers · 34 fonts · draw your own stickers. Free transform with your mouse.

Payday & D-day

If payday falls on a weekend or holiday, it's moved earlier automatically. Exams and anniversaries become D-days.

Money deadlines you can't miss

Deadlines like comprehensive income tax and year-end tax settlement shown as D-days, added to your calendar in one click.

154 calculators built in

From take-home pay, loan interest and severance to PDF and image tools — right in the calendar's Tools tab.

Saved on your device only

No sign-up and no server storage — only on this device. Move everything to another PC with a backup file.

Features by version

The Windows program and Android and iPhone apps are coming soon; the table shows what's planned.

FeatureDesktop app · webAvailable nowWindowsComing soonAndroidComing sooniPhoneComing soon
Drag-and-drop events · month/2-week/list/year · printing✓✓✓✓
Budget linked to calendar · fixed expenses logged automatically✓✓✓✓
Diary decorating (30 themes · 34 tapes · 150+ stickers · 34 fonts)✓✓✓✓
154 calculators (in-app Tools tab)✓✓✓✓
Backup & restore (move devices)✓✓✓✓
Open from a desktop icon✓✓✓✓
Today's & tomorrow's to-do alertsWhen the app is openWindows notificationsPush notificationsPush notifications
Always on top · transparency · tray—✓——
Opens without internetPartial✓✓✓

Release order

  1. Desktop app · web calendarAvailable now
  2. Windows program (.exe)Coming soon · finishing up
  3. Google Play (Android)Coming soon
  4. App Store (iPhone · iPad)Coming soon

FAQ

What's the difference between the desktop app and the Windows program?

The desktop app is the Semjigi app you can install from Chrome or Edge right now. It opens from a desktop or taskbar icon and has all the same features as the web. The upcoming Windows program (.exe) adds PC-only features on top: tray mode, always on top, transparency, Windows notifications and opening without internet.

When will they launch?

We're finishing the Windows program first, then Google Play (Android) and the App Store (iPhone), in that order. When dates are set, this page will be the first to know. Until then, all the same features are free in the web calendar.

How much will it cost?

Just like the web calendar now, the core features are planned to be free.

Can I move my events and budget from the web to the app?

Yes. Download a backup file from 💾 Backup at the top of the web calendar, and when the program or app comes out, move everything over with "Load backup".

Where is my data stored?

Only on the device you use, with no sign-up or server storage. Semjigi never collects your events or budget. That's why you move devices with a backup file.

How can I use it like an app on my phone now?

Open Semjigi Calendar in your phone's browser and tap Share (iPhone) or the menu (Android) → "Add to Home Screen" to open it from an icon like an app.