Comparison

Clockwork vs Timegrapher

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

Head to head
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

About

Timegrapher

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
Read full description

What is Timegrapher? Timegrapher measures the accuracy of your mechanical watch. The app uses your device's microphone to detect the ticking of your watch. Features: Detect BPH Measure Beat rate Measure Beat error Measure Amplitude Set Lift angle Display beat noises real time (unlock, impulse and lock sounds) Display accuracy and beat error over time More features will be coming soon.

Screenshots

Clockwork4 screens
Timegrapher3 screens

Verdict

The call

The clearest difference is rating: Clockwork at 4.4 against Timegrapher's 2.8. Clockwork also leads on update cadence (every 3 weeks vs every 8 months). Timegrapher's advantage is review sentiment (55% vs 43%). On price, ratings volume, ads and in-app purchases 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

Both are free to download. Clockwork 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.

ReceptionRating · Positive reviews · Number of ratings

Clockwork holds the better App Store score, 4.4 against 2.8. Both are backed by a comparable volume of ratings — 24 and 44 respectively. Written reviews complicate that: 43% of Clockwork's written reviews are positive against 55% of Timegrapher's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Clockwork ships an update every 3 weeks, Timegrapher every 8 months. The most recent releases landed on September 11, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Clockwork versus Timegrapher: the parameters behind the verdict, then further details
ParameterClockworkTimegrapher
PriceFreeFree
Rating4.4 (24 ratings) — better2.8 (44 ratings)
Positive reviews42.9% of reviews55.0% of reviews — better
Number of ratings2444 — better
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.416.0 — better
Further details — not scored
Size242 MB9 MB
Age rating4+4+
DeveloperAppfred ASAttila Lelko

Customer experience

Clockwork

All ratings23 ratings
Positive78.3%
Neutral4.3%
Negative17.4%
Written reviews28 reviews
Positive42.9%
Neutral10.7%
Negative46.4%

Timegrapher

All ratings44 ratings
Positive40.9%
Neutral6.8%
Negative52.3%
Written reviews60 reviews
Positive55.0%
Neutral3.3%
Negative41.7%

Bugs and requests

Clockwork

Not enough reviews yet to summarise bugs or requests.

Timegrapher

Reported bugs

9 issues
  • Does not detect ticking
  • Does not work at all
  • Requires payment to function
  • Inaccurate readings
  • Unskippable pop-ups
Show 4 more
  • App magnetizes watch
  • Does not work after paying for premium
  • Amplitude reported as 360
  • Inconsistent measurements

Requested features

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

In-app purchases

1 purchases

Clockwork

One-time1
  • Clockwork Premium$5.99
1 purchases

Timegrapher

One-time1
  • Unlock full$5.99

Questions

Is Clockwork free?
Clockwork is free to download, with in-app purchases available.
Is Timegrapher free?
Timegrapher is free to download, with in-app purchases available.
Which has better reviews, Clockwork or Timegrapher?
Clockwork is rated higher. Clockwork averages 4.4 out of 5 from 24 ratings, while Timegrapher averages 2.8 from 44 ratings.
Do Clockwork or Timegrapher have ads?
Neither Clockwork nor Timegrapher shows ads.
Which is updated more often, Clockwork or Timegrapher?
Clockwork ships an update every 3 weeks, and Timegrapher every 8 months. Most recently, Clockwork was updated on September 11, 2026 and Timegrapher on September 21, 2026.

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