Comparison

Watch Tuner Timegrapher vs Clockwork

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Watch Tuner Timegrapher

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
Read full description

Watch Tuner Timegrapher is an app for testing mechanical watches — both automatic and manual winding. It displays a frequency diagram of your watch and measures the rate, beat error, amplitude, and beats per hour (BPH). The app uses your device’s built-in microphone or a headset mic to record the audible ticks of the watch. For best results, use the app in a quiet environment. Background noise can affect accuracy — complete silence works best, though the built-in noise-cancelling algorithm can filter out minor sounds. The microphone must be in contact with the watch to clearly capture the ticking sound; ideally, place it against the watch’s crown during recording.

About

Clockwork

This app allows you to measure the accuracy of your watches using your phone's camera. It compares an image of your watch to an atomic clock to calculate its timekeeping offset. Track accuracy over time with graphs and store detailed watch information.

Highlights
  • Measure accuracy using images
  • Atomic clock synchronization
  • Accuracy over time graphs
  • Store detailed watch information
  • Dark mode support
  • Digital and analog atomic clock
Features
Read full description

Measure the accuracy of your watches today! Clockwork includes several useful features. You can store watch information, measure watch accuracy, and set your watch using a clock synchronized with atomic time. Check it out now! _MEASUREMENTS USING IMAGES_ Most other watch measurement apps require either third-party equipment or that you press a button at a specific time. Additional equipment is often expensive, and timing a button press is difficult to do precisely. Clockwork solves this by letting you take a picture of your watch and indicate the time shown in the image. We then synchronize the image capture time with atomic time before comparing it with the time shown on the watch to calculate an offset. Taking measurements over time provides a real-world view of your watch's accuracy. _GRAPHS_ Watch your measurements over time on a beautifully crafted graph. The graph shows how your watch's accuracy changes over time and offers several modes to help you understand its performance. _WHY MEASURE?_ Knowing the accuracy of your watch is interesting on its own, but it also has several practical uses. It can indicate when it is time for a service, and documented accuracy could increase resale value, especially for vintage watches. _STORE DETAILED INFORMATION_ In case of theft or accidents, it will always help to have your information stored in a secure place. _ATOMIC CLOCK, DARK MODE AND MUCH MORE!_ Clockwork includes an atomic clock in both digital and analog formats to help you set your watch as precisely as possible. Powerful settings such as Dark or Light mode, separate day and date formats, and different ways to sort your watches let you customize the app to your liking. // Appfred AS © 2026

Screenshots

Watch Tuner Timegrapher4 screens
Clockwork4 screens

Verdict

The call

The clearest difference is price: Clockwork at Free against Watch Tuner Timegrapher's $1.99. Clockwork also leads on rating (4.4 vs 3.8) and update cadence (every 3 weeks vs every 4 months). Watch Tuner Timegrapher's advantage is in-app purchases (none vs 1) and review sentiment (68% vs 45%). On ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Clockwork is free to download; Watch Tuner Timegrapher costs $1.99 up front. Clockwork sells 1 one-off in-app purchase. Watch Tuner Timegrapher asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Clockwork holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 80 and 24 respectively. Written reviews complicate that: 68% of Watch Tuner Timegrapher's written reviews are positive against 45% of Clockwork's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Watch Tuner Timegrapher ships an update every 4 months, Clockwork every 3 weeks. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard8 real differences · 2 level
Watch Tuner Timegrapher versus Clockwork: the parameters behind the verdict, then further details
ParameterWatch Tuner TimegrapherClockwork
Price$1.99Free — better
Rating3.8 (80 ratings)4.4 (24 ratings) — better
Positive reviews68.4% of reviews — better45.5% of reviews
Number of ratings80 — better24
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size2 MB242 MB
Age rating4+4+
DeveloperBartlomiej SwiatekAppfred AS

Customer experience

Watch Tuner Timegrapher

All ratings80 ratings
Positive66.3%
Neutral10.0%
Negative23.8%
Written reviews196 reviews
Positive68.4%
Neutral7.1%
Negative24.5%

Clockwork

All ratings24 ratings
Positive79.2%
Neutral4.2%
Negative16.7%
Written reviews33 reviews
Positive45.5%
Neutral9.1%
Negative45.5%

Bugs and requests

Watch Tuner Timegrapher

Reported bugs

11 issues
  • 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)
Show 6 more
  • Doesn't work properly with Samsung headsets on iPad
  • External microphone recognized but won't provide/analyze data
  • Auto-detect mode fails to recognize BPH correctly
  • App becomes unresponsive and requires phone restart
  • Incompatibility with latest iOS versions for audio spectrum analysis
  • Microphone collection starts immediately on app launch

Requested features

13 requests
  • 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
Show 8 more
  • Ability to share graphs as photos or export to email
  • Larger display for complete timestamp visibility
  • Increased history file storage (currently limited to 16 files)
  • Korean language support
  • Japanese language support
  • Dedicated hardware microphone option
  • Better auto-detection for BPH to avoid manual input
  • Ability to add watch information and photos to measurements

Clockwork

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Watch Tuner Timegrapher

No in-app purchases

1 purchases

Clockwork

One-time1
  • Clockwork Premium$5.99

Questions

Is Watch Tuner Timegrapher free?
Watch Tuner Timegrapher costs $1.99, with no in-app purchases.
Is Clockwork free?
Clockwork is free to download, with in-app purchases available.
Which has better reviews, Watch Tuner Timegrapher or Clockwork?
Clockwork is rated higher. Watch Tuner Timegrapher averages 3.8 out of 5 from 80 ratings, while Clockwork averages 4.4 from 24 ratings.
Do Watch Tuner Timegrapher or Clockwork have ads?
Neither Watch Tuner Timegrapher nor Clockwork shows ads.
Which is updated more often, Watch Tuner Timegrapher or Clockwork?
Watch Tuner Timegrapher ships an update every 4 months, and Clockwork every 3 weeks. Most recently, Watch Tuner Timegrapher was updated on November 1, 2026 and Clockwork on October 30, 2026.

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