# Calendar Clock vs Add Calendar Basic

The clearest difference is price: Add Calendar Basic at Free against Calendar Clock's $0.99. Add Calendar Basic also leads on update cadence (monthly vs every 41 months) and iOS requirement (11.1 vs 26.5). Calendar Clock's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Add Calendar Basic is free to download; Calendar Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calendar Clock ships an update every 41 months, Add Calendar Basic monthly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Calendar Clock | Add Calendar Basic |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/add-calendar-basic/id1482436846/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 41 months | **Monthly** |
| Monetization | Paid | **Ad-supported** |
| Size | 4 MB | 34 MB |
| Requires iOS | 26.5 | **11.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Systemiko Inc.](https://appshunter.io/developer/680630947) | [cho seonghyun](https://appshunter.io/developer/1436483241) |

## What reviewers say

### Calendar Clock

[App page](https://appshunter.io/ios/app/calendar-clock/id1451445740)

This app displays the current year, month, week, and time on a single screen with a clean design. It offers customizable theme colors and functions as a desk clock. The app disables device sleep mode while active.

**Highlights:** All-in-one screen display, Year, month, week, day, hour, minute, second, Switchable theme colors (dark, light, green, blue), Disables device sleep mode, Acts as a desk clock

**Features:** macOS Compatibility

**In-app purchases:** none


### Add Calendar Basic

[App page](https://appshunter.io/ios/app/add-calendar-basic/id1482436846)

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.

**Highlights:** Add custom calendars to wallpaper, 3-shift work schedule management, Wallpaper integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calendar Clock free?

Calendar Clock costs $0.99, with no in-app purchases.

### Is Add Calendar Basic free?

Add Calendar Basic is free to download, with no in-app purchases.

### Do Calendar Clock or Add Calendar Basic have ads?

Add Calendar Basic shows ads; Calendar Clock does not.

### Which is updated more often, Calendar Clock or Add Calendar Basic?

Calendar Clock ships an update every 41 months, and Add Calendar Basic monthly. Most recently, Calendar Clock was updated on October 24, 2026 and Add Calendar Basic on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*