# Black Clock vs Watch Tuner Timegrapher

The clearest difference is price: Black Clock at $4.99 against Watch Tuner Timegrapher's $7.99. Black Clock also leads on iOS requirement (13.0 vs 15.6). Watch Tuner Timegrapher's advantage is update cadence (every 4 months vs every 9 months) and review sentiment (68% vs 57%). On ads, in-app purchases and device support there is nothing between them.

Black Clock costs $4.99 and Watch Tuner Timegrapher $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Black Clock ships an update every 9 months, Watch Tuner Timegrapher every 4 months. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Black Clock | Watch Tuner Timegrapher |
| --- | --- | --- |
| Price | **$4.99** | $7.99 |
| Rating | — | **[3.8 (80 ratings)](https://appshunter.io/ios/app/watch-tuner-timegrapher/id991367080/reviews)** |
| Number of ratings | — | **80** |
| Positive reviews | 57.1% of reviews | **68.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 0 MB | 2 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MacMedia](https://appshunter.io/developer/322441361) | [Bartlomiej Swiatek](https://appshunter.io/developer/943509577) |

## What reviewers say

### Black Clock

[App page](https://appshunter.io/ios/app/black-clock/id335519165)

A straightforward analog clock application offering a clean and simple design. It displays time with classic hands on a dial, providing an uncluttered visual experience for users who prefer traditional timekeeping.

**Highlights:** Simple design, Clean interface, Analog display, Classic clock hands

**Features:** Vision Pro support

**In-app purchases:** none


### Watch Tuner Timegrapher

[App page](https://appshunter.io/ios/app/watch-tuner-timegrapher/id991367080)

This application analyzes the performance of mechanical watches by using your device's microphone to record ticking sounds. It generates a frequency diagram and provides measurements for rate, beat error, amplitude, and beats per hour.

**Highlights:** Frequency diagram display, Measures rate accuracy, Measures beat error, Measures amplitude, Measures beats per hour (BPH), Uses device microphone

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💰 Affordable alternative to expensive professional timegraphers
- 📊 Accurate measurements when used correctly with proper microphone setup
- 🎯 Precise beat error and amplitude detection capabilities
- ⚙️ Highly adjustable settings for different watch movements
- 📈 Clear, easy-to-read graphical display of results

**What reviewers complain about**

- 🎤 Highly dependent on microphone quality and placement
- 🔇 Requires completely silent environment to function properly
- ⚠️ Inconsistent readings across different devices and setups
- 😤 Steep learning curve with many trial-and-error adjustments needed
- 🚫 Fails to detect watch ticks in noisy environments

**Reported bugs**

- App crashes on certain iOS versions (iPhone X with iOS 14.6)
- Incompatible with older devices (iPod Touch 6, iOS 8.4)
- Blank white screen on some devices
- Quality reporting inconsistency between live reading and saved history
- Cannot store more than 16 history files (save button grays out)

**Requested features**

- Audio monitoring function to optimize microphone placement before measuring
- Audible ticking sound output (like professional models)
- Extended beat rate range to include mechanical clocks
- Only request microphone permissions when actually measuring
- History feature to save and track measurements over time


## Frequently asked questions

### Is Black Clock free?

Black Clock costs $4.99, with no in-app purchases.

### Is Watch Tuner Timegrapher free?

Watch Tuner Timegrapher costs $7.99, with no in-app purchases.

### Do Black Clock or Watch Tuner Timegrapher have ads?

Neither Black Clock nor Watch Tuner Timegrapher shows ads.

### Which is updated more often, Black Clock or Watch Tuner Timegrapher?

Black Clock ships an update every 9 months, and Watch Tuner Timegrapher every 4 months. Most recently, Black Clock was updated on September 9, 2026 and Watch Tuner Timegrapher on September 24, 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.*