# Cuckoo vs Cuckoo Clock Calibration

The clearest difference is price: Cuckoo at Free against Cuckoo Clock Calibration's $0.99. Cuckoo Clock Calibration's advantage is rating (4.9 vs 3.4) and in-app purchases (none vs 1). On ratings volume and device support there is nothing between them.

Cuckoo is free to download; Cuckoo Clock Calibration costs $0.99 up front. Cuckoo sells 1 one-off in-app purchase. Cuckoo Clock Calibration asks for nothing beyond the download.

Cuckoo Clock Calibration holds the better App Store score, 4.9 against 3.4. Both are backed by a comparable volume of ratings — 16 and 36 respectively. Written reviews point the same way: 68% of Cuckoo's written reviews are positive against 85% of Cuckoo Clock Calibration's.

Cuckoo ships an update every 3 months, Cuckoo Clock Calibration monthly. Both last shipped on October 17, 2026.

## The numbers

| Metric | Cuckoo | Cuckoo Clock Calibration |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.4 (16 ratings)](https://appshunter.io/ios/app/cuckoo/id414022497/reviews) | **[4.9 (36 ratings)](https://appshunter.io/ios/app/cuckoo-clock-calibration/id1171487289/reviews)** |
| Number of ratings | 16 | **36** |
| Positive reviews | 68.0% of reviews | **85.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#57** |
| Size | 42 MB | 19 MB |
| Requires iOS | 17.6 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshihiko Tambo](https://appshunter.io/developer/406777331) | [Nir Hamzani](https://appshunter.io/developer/1026666321) |

## What reviewers say

### Cuckoo

[App page](https://appshunter.io/ios/app/cuckoo/id414022497)

This utility app simulates a cuckoo clock, chiming every hour and half-hour. Users can toggle the cuckoo sound on or off and customize alarm modes. Additional sounds and background images are available for purchase, along with an option to remove ads.

**Highlights:** Hourly and half-hourly cuckoo chimes, Customizable alarm modes, Add-on purchases for sounds and backgrounds, Ad removal option, Toggleable cuckoo sound

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cuckoo Premium Feature | $0.99 | one-time |


### Cuckoo Clock Calibration

[App page](https://appshunter.io/ios/app/cuckoo-clock-calibration/id1171487289)

**Currently charting:** #57 Top Paid · Utilities (US App Store)

This app transforms your iPhone into a highly accurate sensor for calibrating cuckoo and pendulum clocks. It measures clock beats, calculates daily gain or loss, and guides you through precise adjustments for optimal timekeeping.

**Highlights:** Precise clock beat period measurement, Daily gain/loss calculation, Train count sensor with 1μs accuracy, Adjustable signal gain and detection threshold, Reference timing table with user-defined clocks, Waveform display for tick readings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💰 Affordable price
- ✅ Accurate readings
- ⏱️ Saves time
- 🛠️ Helps with clock repair

**What reviewers complain about**

- ❓ Confusing directions
- 📉 Inconsistent readings sometimes
- 🚫 External microphone issues
- 🎛️ Limited reference clocks
- 🗣️ Name not universal

**Reported bugs**

- App closes after setting reference
- App crashes on startup after reference beat memory use
- App crashes
- App crashes and requires reinstallation
- App crashes on iPhone 6s

**Requested features**

- Accurate beat frequency display
- Level indicator display
- External microphone support
- Plot period over time
- Allow reference periods over 1 second


## Frequently asked questions

### Is Cuckoo free?

Cuckoo is free to download, with in-app purchases available.

### Is Cuckoo Clock Calibration free?

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

### Which has better reviews, Cuckoo or Cuckoo Clock Calibration?

Cuckoo Clock Calibration is rated higher. Cuckoo averages 3.4 out of 5 from 16 ratings, while Cuckoo Clock Calibration averages 4.9 from 36 ratings.

### Do Cuckoo or Cuckoo Clock Calibration have ads?

Cuckoo shows ads; Cuckoo Clock Calibration does not.

### Which is updated more often, Cuckoo or Cuckoo Clock Calibration?

Cuckoo ships an update every 3 months, and Cuckoo Clock Calibration monthly. Most recently, Cuckoo was updated on October 17, 2026 and Cuckoo Clock Calibration on October 17, 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.*