# Watch Tuner

> Mechanical watch testing app measuring rate, beat error, and amplitude. (iPhone/iPad app by Bartlomiej Swiatek.)

- Source: https://appshunter.io/ios/app/watch-tuner/id959394022 (this page in markdown: same URL + `.md`)
- Developer: [Bartlomiej Swiatek](https://appshunter.io/developer/943509577)
- Category: Utilities
- Price: $3.99
- Rating: 3.80/5 from 6 App Store ratings · 22 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 1 MB
- Languages: American English
- Released: 2015-02-06
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/watch-tuner/id959394022/reviews.md

## What is Watch Tuner?

Watch Tuner is a mechanical and automatic watch testing application designed to measure following parameters:
- rate
- beat error
- amplitude
- beats per hour
The application uses the build-in or headset microphone to record audible ticks of the watch.

You can measure now with your iPhone the quality and stability of the rate accuracy, amplitude and beat error of mechanical watch movements. You can also take advantage of results history.

Use in a quiet environment. Any ambient noises can affect result accuracy. Complete silence is the best.

Recommended way to record the ticks is to touch the crown of the watch with the headset microphone. You will get the best results using original Apple EarPods.

If you don't need such advanced tool as Watch Tuner and all you need is to the check rate accuracy, maybe it's worth to try Watch Tuner Lite - a little brother of Watch Tuner application.
If you need frequency diagram look at Watch Tuner Timegrapher - the most sophisticated app of Watch Tuner series.

## Key features

- Measures rate, beat error, and amplitude
- Uses device microphone for recording ticks
- Provides results history
- Supports iPhone and iPod
- Quiet environment recommended for accuracy

## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/watch-tuner/id959394022/reviews.md

### 5/5 — Einwandfrei

*2025-03-24*

Da kommt Freude auf!
Ich konnte einige meiner Uhren auf einen höheren Standard einstellen.Die 28800er laufen jetzt als ob sie das 20igfache gekostet hätten!
Das Mikrofon der Kopfhörer mit etwas Spannung auf die Krone legen, Empfindlichkeit auf 90%
einstellen und es gibt klare Ergebnisse wenn man alleine im Raum ist.
History ohne Zuweisung,
Dennoch Preis/Leistung TOP

### 1/5 — doesn’t work

*2024-12-09*

can’t get a consistent reading on iphone 15

### 3/5 — Long Case Pendulum Clock

*2024-05-04*

Seams to have worked well in setting the beat using the beat error and rate measurement functions. Supposedly anything between 10 & 20 ms beat error is acceptable on a long case pendulum clock but I was able to get down to an avg of 7ms with 10200 samples.

App is useless at measuring BPH due to the lack of a decimal reading in the BPH measurement. Had to use a stopwatch and manually count them. Changed the pendulum nut three full turns but BPH never changed. Read 3600 then entire time although manual measurement started at 3660 and ended at 3600. 

Please update app to add two decimal places to the BPH measurement.

### 5/5 — Works very well

*2022-12-22*

Some experimentation will be needed to get the phone to best be able to hear the watch, i touched the crown to the phone mic, but once that is figured out it will read sufficiently well enough to get your watch regulated.  Mine was slowing several mins daily and the beat error was hight (it gets roughed up).  Now it is +/- negligible.  Pretty surprised at the apps utility and effectiveness.

### 3/5 — Needs a reset button and better accuracy

*2022-12-10*

Couldn’t get a consistent Bph. Registered as high as 66600 and I know that’s not possible especially on a simple manual wind caravelle.
Ok value for the money but I’ll have to get an electronic one if I really want to regulate a watch 
Needs a reset button!!!!!!!

### 5/5 — Useful software

*2022-11-21*

I used this utility to adjust my seiko 5 automatic movement. Initial testing indicates that it is now down to 7 seconds a day. 

Tips for others. 
Only use in a quiet room. Silence is best. 
I used the built in mic on my iphone 8 but had to look up exactly where the mic was. 
I found that sitting at a table covered with thick cloth, i was able to hold the crown against the mic and got good results.

### 5/5 — Love this app!!

*2022-07-02*

I use a headset with a boom mic and it’s awesome!!    So simple and accurate, best 10 $ I ever spent , Thanks!!!!

### 5/5 — Top

*2022-05-17*

Fonctionne plutôt bien, mais nécessite une environnement silencieux, fonctionne mieux avec le kit main libre !
Seul problème, j’aurais aimé une fonction permettant d’upgrader vers la version supérieur !

### 4/5 — Funktioniert gut

*2022-02-16*

Ich verwende die App zum Regulieren von Vostok-Uhren bei offenem Gehäuseboden. Der Raum muss allerdings absolut ruhig sein.
Die Genauigkeit ist dann gut.

### 5/5 — It works!

*2021-12-31*

Yes it works using standard Apple wired earphones with mic. H not compared with a timegrapher.  Needed to play around a bit to get good pickup - adjust sensitivity but check correct BPH is detected.  Worked very well with watch open while I was adjusting it - located mic close to balance wheel to check between adjustments. I have a cheap GMT “homage” with DG5833GMT movement.  It was running fast 60-90 secs per day.  Tried to fix by trial and error: hand timing over a few hours after adjustment, but found I had moved the beat error lever instead of the rate lever.  Easy to fix with this app and now have good beet error and good rate. Thanks!

## Frequently asked questions about Watch Tuner

### What parameters does Watch Tuner measure?

Watch Tuner measures the rate, beat error, and amplitude of mechanical and automatic watches. It also calculates the beats per hour.

### How does Watch Tuner work?

The application uses your iPhone or iPod's built-in or headset microphone to record the audible ticks of a watch. It then analyzes these sounds to provide measurements.

### What is the best way to get accurate results with Watch Tuner?

For the most accurate results, it is recommended to use Watch Tuner in a quiet environment to minimize ambient noise interference. Touching the watch crown with the headset microphone, especially Apple EarPods, is suggested for optimal recording.

### Does Watch Tuner have ads?

No, Watch Tuner does not contain advertisements. It is a paid application.

### What devices is Watch Tuner compatible with?

Watch Tuner is supported on iPhone and iPod devices. It requires iOS 4.3 or later.

### How much does Watch Tuner cost?

Watch Tuner is available for a one-time purchase of $3.99. There are no in-app purchases or subscriptions.

### How often is Watch Tuner updated?

The latest version of Watch Tuner is 1.15, which was last updated on December 28, 2025. Updates typically occur to improve performance and compatibility.

### What is the age rating for Watch Tuner?

Watch Tuner has an age rating of 4+, indicating it is suitable for users of all ages. The app's functionality does not involve mature content.

## Version history (last 5 releases)

### 1.17 — 2026-07-16

- fixes

### 1.16 — 2026-07-07

- logarithmic sensitivity - now supports piezo contact mics
- tick preview window
- perfected tick and amplitude detection algorithms
- fixes

### 1.15 — 2025-12-28

- fixes

### 1.14 — 2025-12-15

- keeping up to date
- improved amplitude calculation algorithm

### 1.12 — 2020-07-04

improved tick detection

## Apps similar to Watch Tuner

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Timegrapher X](https://appshunter.io/ios/app/timegrapher-x/id1516161361) | 4.2 (23) | $29.99 | Utilities |
| [SwissConnect Analytics](https://appshunter.io/ios/app/swissconnect-analytics/id1159256652) | 2.0 (7) | Free | Utilities |
| [Watch Tracker](https://appshunter.io/ios/app/watch-tracker/id610666926) | 4.7 (322) | $4.99 | Utilities |
| [Tickoprint](https://appshunter.io/ios/app/tickoprint/id1496578178) | 1.3 (6) | Free | Utilities |
| [Twelve O'clock](https://appshunter.io/ios/app/twelve-oclock/id1570977980) | 4.4 (82) | Free | Utilities |
| [Timegrapher - watch accuracy](https://appshunter.io/ios/app/timegrapher-watch-accuracy/id6450460771) | 2.8 (44) | Free | Utilities |

## More apps by Bartlomiej Swiatek

- [Watch Tuner Lite](https://appshunter.io/ios/app/watch-tuner-lite/id968820626)
- [Watch Tuner Timegrapher](https://appshunter.io/ios/app/watch-tuner-timegrapher/id991367080)
- [MorseOn](https://appshunter.io/ios/app/morseon/id6770025597)

All apps by Bartlomiej Swiatek: https://appshunter.io/developer/943509577

## Related topics

[watch tuner lite](https://appshunter.io/ios/topics/watch-tuner-lite) · [watch amplitude](https://appshunter.io/ios/topics/watch-amplitude) · [tuner pro for watch](https://appshunter.io/ios/topics/tuner-pro-for-watch)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*