12Calendar vs Add Calendar Basic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
12Calendar
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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Every time you open your lock screen, a beautiful calendar is right there to greet you. That's the everyday experience 12Calendar creates. Customize fonts, colors, and layouts to build a calendar wallpaper that's uniquely yours — simply and easily. ■ Layouts Choose from 28 calendar layouts. Free Layout mode lets you drag and resize each calendar freely. - You can change the size from the popup that appears when you tap the calendar. ■ Customize Every Detail - Individual color settings for weekdays, Saturdays, and Sundays - Day-of-week display language - 12 fonts with adjustable text size - Background opacity and border visibility - Week start day (Sunday or Monday) ■ Holiday Support Add holidays manually within the app. With an in-app purchase, holidays can be imported from your iOS Calendar. ■ How to Set Your Wallpaper After saving your calendar, set it as your wallpaper via the Photos app or iOS Settings. (Wallpaper cannot be changed directly from within this app.) ※ App Store screenshots were created using Screenshots.pro.
Add Calendar Basic
This utility app allows users to add custom calendars directly to their device wallpaper. It also offers a convenient feature for managing 3-shift work schedules.
- Add custom calendars to wallpaper
- 3-shift work schedule management
- Wallpaper integration
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You can add a custom calendar on your wallpaper. 3-Shift work schedule is also provided so easily.
Screenshots
Verdict
The clearest difference is rating: 12Calendar at 3.2 against Add Calendar Basic's 1.0. 12Calendar also leads on ads (none vs shown) and ratings volume (11 vs 1). Add Calendar Basic's advantage is in-app purchases (none vs 4) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 12Calendar sells 4 one-off in-app purchases. Add Calendar Basic asks for nothing beyond the download.
12Calendar holds the better App Store score, 3.2 against 1.0. That said, the two scores are not equally well evidenced: 12Calendar has 11 ratings behind it against 1, so its average is the more settled of the two.
12Calendar ships an update every 3 months, Add Calendar Basic monthly. The most recent releases landed on October 8, 2026 and September 28, 2026 respectively.
| Parameter | 12Calendar | Add Calendar Basic |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (11 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 61.5% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 17.0 | 11.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | lagoon | cho seonghyun |
Customer experience
12Calendar
Add Calendar Basic
In-app purchases
12Calendar
- UpgradeFree
- Hide Logo & SAVE available$0.99
- Enable load calendar$0.99
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- Clear all functional limitation$1.99
Add Calendar Basic
No in-app purchases
Questions
Is 12Calendar free?
Is Add Calendar Basic free?
Which has better reviews, 12Calendar or Add Calendar Basic?
Do 12Calendar or Add Calendar Basic have ads?
Which is updated more often, 12Calendar or Add Calendar Basic?
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