# ClockMaster vs Timegrapher

The clearest difference is price: Timegrapher at Free against ClockMaster's $49.99. Timegrapher also leads on iOS requirement (16.0 vs 18.0). ClockMaster's advantage is rating (3.8 vs 2.8). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Timegrapher is free to download; ClockMaster costs $49.99 up front. ClockMaster sells 1 one-off in-app purchase and Timegrapher sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ClockMaster holds the better App Store score, 3.8 against 2.8. Both are backed by a comparable volume of ratings — 52 and 44 respectively. Written reviews point the same way: 59% of ClockMaster's written reviews are positive against 55% of Timegrapher's.

ClockMaster ships an update every 5 months, Timegrapher every 8 months. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ClockMaster | Timegrapher |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | **[3.8 (52 ratings)](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882/reviews)** | [2.8 (44 ratings)](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771/reviews) |
| Number of ratings | **52** | 44 |
| Positive reviews | **58.6% of reviews** | 55.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 9 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ONYX Apps](https://appshunter.io/developer/356553882) | [Attila Lelko](https://appshunter.io/developer/1693385247) |

## What reviewers say

### ClockMaster

[App page](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882)

This app analyzes the ticking sound of mechanical pendulum clocks to determine their running rate and error. It's designed for accurate long-term measurements, allowing users to regulate clocks efficiently. Advanced features include printable reports and data export for in-depth analysis.

**Highlights:** Analyzes escapement ticking sound, Measures running rate in Beats Per Hour (B/H), Reports error in Seconds Per Day (±S/D), Supports long-term measurements, Generates printable PDF reports (Pro), Exports raw data as .csv file (Pro)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockMaster Pro | $29.99 | one-time |

**What reviewers like**

- 👍 Works very well
- 👍 Accurately sets beat and calibrates time
- 👍 Good alternative to expensive dedicated instruments
- 👍 Elegant display for setting beat and symmetry
- 👍 Works well for professional clock repairers

**What reviewers complain about**

- 😞 Frustrating data handling
- 😞 Spreadsheet export issues
- 😞 iPhone notifications stop measurements
- 😞 Does not work for 400-day clocks
- 😞 External mic option missing

**Reported bugs**

- Data lost if app stops unexpectedly
- iPhone notifications interrupt measurements
- External mic option not available
- App freezes after iOS upgrade
- Screen touch points unresponsive

**Requested features**

- Printable protocol like a timegrapher
- Beat delta info on regulation screen
- Option to manually restart measurement and append
- Undocumented units in spreadsheet export
- Include actual time in spreadsheet export


### Timegrapher

[App page](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771)

This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.

**Highlights:** Detect BPH, Measure Beat rate, Measure Beat error, Measure Amplitude, Set Lift angle, Real-time sound display, Accuracy over time display

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock full | $5.99 | one-time |

**What reviewers like**

- 👍 Works great for some
- 🎯 Accurate for some users
- 💰 Good value for money (paid features)
- 💡 Useful for watch regulation
- 🎧 Works better with external mic

**What reviewers complain about**

- 😞 Doesn't work for many
- 💸 Requires payment for full functionality
- ❓ Scam accusations
- 📱 Inconsistent readings
- 🚫 No readings at all

**Reported bugs**

- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups

**Requested features**

- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version


## Frequently asked questions

### Is ClockMaster free?

ClockMaster costs $49.99, and also offers in-app purchases.

### Is Timegrapher free?

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

### Which has better reviews, ClockMaster or Timegrapher?

ClockMaster is rated higher. ClockMaster averages 3.8 out of 5 from 52 ratings, while Timegrapher averages 2.8 from 44 ratings.

### Do ClockMaster or Timegrapher have ads?

Neither ClockMaster nor Timegrapher shows ads.

### Which is updated more often, ClockMaster or Timegrapher?

ClockMaster ships an update every 5 months, and Timegrapher every 8 months. Most recently, ClockMaster was updated on September 23, 2026 and Timegrapher on September 26, 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.*