# Calendar Clock vs Pipe Coil Development

The clearest difference is price: Calendar Clock at $0.99 against Pipe Coil Development's $2.99. Pipe Coil Development's advantage is iOS requirement (16.1 vs 26.5). On update cadence, ads, in-app purchases and device support there is nothing between them.

Calendar Clock costs $0.99 and Pipe Coil Development $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calendar Clock ships an update every 41 months, Pipe Coil Development every 55 months. The most recent releases landed on September 30, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Calendar Clock | Pipe Coil Development |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 41 months** | Every 55 months |
| Monetization | Paid | — |
| Size | 4 MB | 1 MB |
| Requires iOS | 26.5 | **16.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Systemiko Inc.](https://appshunter.io/developer/680630947) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## 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


### Pipe Coil Development

[App page](https://appshunter.io/ios/app/pipe-coil-development/id1491772524)

**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 Pipe Coil Development free?

Pipe Coil Development costs $2.99, with no in-app purchases.

### Do Calendar Clock or Pipe Coil Development have ads?

Neither Calendar Clock nor Pipe Coil Development shows ads.

### Which is updated more often, Calendar Clock or Pipe Coil Development?

Calendar Clock ships an update every 41 months, and Pipe Coil Development every 55 months. Most recently, Calendar Clock was updated on September 30, 2026 and Pipe Coil Development on June 5, 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.*