12Calendar

12Calendar

Lock screen wallpaper calendar

11 ratings
65 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 15, 2013
  • April 28, 2026
12Calendar screenshot #1 for iPhone
12Calendar screenshot #2 for iPhone
12Calendar screenshot #3 for iPhone
12Calendar screenshot #4 for iPhone
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About

Customize your lock screen with a calendar. Choose from various layouts, fonts, and colors to display your schedule conveniently. Add custom holidays by importing from your device's calendar.

Customizable calendar layouts
Selectable fonts and colors
Adjustable transparency and frame borders
Add custom holiday data
Import holidays from iOS calendar
Display year, month, and day of the week
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What's New in 12Calendar

2.0.3

April 28, 2026

Fixed a bug where months were displayed in the wrong order in some 3-month and 6-month calendar layouts.

4

In-App Purchases

$1.99

Clear all functional limitation

All the functional restrictions are released.

User reviews

休日の色

自分用の休日の色分けができなくなってびっくり。
残念、長年使ってきたのに。文字入力では見づらいし祝日と同じ色だと意味ないです。

カレンダーの大きさ?

あれっ、カレンダーの大きさ変えられなくなりました?
前バージョンではピンチインで小さく出来ていた気がするのですが…。。

最新機種に対応して欲しい

iPhone7plusを使い続けてたもので、毎月1回、写真を選んでカレンダー部分を変える作業も苦でなく使っていたのですが、iPhone16eに変更したら、画面サイズ対応してなくて、残念です。

No clock

I downloaded this app to my Iphone XR, no clock, just the calendar. I deleted it

Excellent.

Absolutely love this app. Paid a small amount to unlock some features and waiting to proceed with implementing same. Love that you can fill in holidays for your own country in settings. This app is just perfect for lock screen. Looked and tried others, but this one is way ahead in simplicity and for what you need it for. 👍👌
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FAQ

How do I add holidays to 12Calendar?

You can manually add holiday data to 12Calendar. For easier input, an in-app purchase allows you to register holidays by reading data directly from your device's iOS calendar.

Can 12Calendar display the calendar on my lock screen automatically?

No, 12Calendar does not automatically change the lock screen. Users must manually set the preserved calendar as their lock screen wallpaper through their device settings.

What customization options does 12Calendar offer?

12Calendar offers extensive customization, including 24 regular and 1 free layout, over 20 built-in fonts, adjustable font size, and individual color changes for backgrounds and borders on holidays, Saturdays, and Sundays.

Does 12Calendar have ads?

No, 12Calendar does not contain advertisements.

What is the update frequency for 12Calendar?

12Calendar was last updated on February 16, 2026, indicating recent development activity. The latest version is 1.9.2.

What devices is 12Calendar compatible with?

12Calendar is compatible with iPhone and iPod devices.

What is the age rating for 12Calendar?

12Calendar has an age rating of 4+, making it suitable for a wide range of users.

How does 12Calendar's rating compare to other calendar apps?

12Calendar has a rating of 3.2 stars from 11 ratings. This suggests a mixed user reception, with some users finding it useful and others encountering issues.