Clock Tuner APK
App information
Version 3.20 (#320)
Updated 2024-06-25
APK Size 1.5 MB
Requires Android Android 7.1+ (Nougat)
Offered by AThumb Inc.
Category Free Tools App
App id com.athumbsoft.pendulumtuner
Developer's notes Measure beat rate of mechanical watches.
Screenshot
Click on the image to see full size
Table of contents
Latest updates
What's new in Clock Tuner 3.20
Editor's review
Download the latest Clock Tuner application, version 3.20, compatible with Windows 10/11 (using emulators such as Bluestacks), Android devices. This free Tools app is developed by AThumb Inc. and is easy to download and install.
Previous versions, including 3.20, 3.16, 3.10, 2.71, are also available. If you need help or have any problems, please let us know.
Description
This app is to measure the BPH(Beats per hour) of mechanical watches.
It will display time error per day as well.
The app uses microphone to measure BPH.
** Recommend to plug a microphone into phone and attach the microphone to the back of your watch.
** Basic version display wave graph and pulse interval histogram.
** Frequency display requires 'Premium' upgrade.
** Please test the app with your watch before you purchase 'Premium' upgrade. The app will work as Premium during 30 min.
Not for digital clocks.
Not working in noisy environment.
Set microphone direction toward a clock.
- Review from Mr. Kojima
http://www.thewatchsite.com/index.php/topic,42142.0.html
- Preset example
Rolex or mechanical watch: Target frequency: 4 or 5Hz, Sample duration: 2Sec, Sensitivity: manual 50
Most pendulum clock: Target frequency: 1 or 2 Hz, Sample duration: 5 or 10 Sec, Sensitivity: medium
FAQ.
1) in the settings there is a sensitivity option with a high, medium, low and 3 manual settings, can you explain how this changes the results
It determines sound amplitude threshold for detecting clock sound. If your clock sound is loud you may reduce sensitivity. This will allow more environmental noises.
If you increase the sensitive, you may measure hand watches. But small noise may measurement errors.
2) why does the detected frequency change between light grey, black and red
Red means smaller drift during the measurement interval while grey means that measurement may have an error.
3) the average frequency does not always calculate, it stays at NaN
The 'detected frequency' should be red continuously.
4) how do you calculate the pulse drift %
abs(max detected frequency - min detected frequency) / detected frequency during 1 detection cycle.
5) what are the 2 graphs showing and what data are you using for the calculations
The size of bars in the upper graph should be almost the same.
The bottom shows amplitude of sound wave recorded from micro phone.
6) are newer versions of the app being developed
** You may provide sound sample by sending wav or mp3 file to admin@athumbcut.com
App permissions
Clock Tuner 3.20 APK requires following permissions:
Allows an application to record audio.
Allows applications to open network sockets.
Allows applications to access information about networks.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Ratings and Reviews
Rating: 3.1/5 based on 2K+ reviews
(*) is required
5 ★ Very simple and effective. Detects beats per hour with phone microphone set against watch case, which is all you really need. I use it to make fine adjustments, and with a little practice you can tune very easily. I tried others which would not detect the ticking and were far more complicated than necessary for simple regulation.
1 ★ I paid $4 for the upgraded version. It doesn't do anything more than the regular version that I didn't have to pay for. And it is constantly telling me that my clock is fast even though it is running slow. I would not recommend.
4 ★ I own a clock repair shop and i got this app because i figured it would be something good to use on house calls. I was right. Its not as accurate as my microset but it's perfect to use in a house to get a quick reading. Since I got this app I have been using it a lot. What I think would help is if I used it in conjunction with a time Trax. This is a great way to be able to get readings and not have to drag out a lot of extra equipment.
1 ★ if you ever enter the settings screen it stops working. The only way to make it work is to clear application data which causes the settings to go back to the defaults. Without the ability to increase measurement period the application is useless. I really regret purchasing it. The evaluation period is kept too short to make a proper purchasing decision.
1 ★ Seemed to run well although it showed my clock running a little slow when it's actually a little fast. Thought I'd do some more measurements at different times. However it only runs once then you have to pay for the Premium Upgrade - well OK. but having paid the money it still doesn't run, although the upgrade button has vanished. Emailed developers but no reply.
5 ★ This app is working well for me. I was able to set the clock to the required BPM and monitor it as the sound capture using a headset mic worked well in a quiet room. It also works well with the phone mic. I appreciate the support for adding custom beat rates and the beat error display which makes it easier to see the longer term trend and also the escapement setting. Good value.
5 ★ Excellent app. It only gives you a 30 minute free trial, but it's well worth the $5 to upgrade and keep using it. Using this app and the built-in mic on my Galaxy S8+, I was able to very easily regulate my 1980s Vostok Amphibia from -500s/d to -4s/d. It works very well so long as you're in a relatively quiet environment. I recommend fiddling with the settings some while timing a baseline watch (that you've already timed using some other method) so that you know you're getting an accurate reading.
5 ★ Works reliably for me. Would love to be able to store profiles for each watch, and not have to remember the frequency of each movement
5 ★ Simple and precise! Works very well. I managed to regulate a Seiko 4r36 movement from - 40 sec/day to +2 sec/day. I like the fact that you don't need an external microphone, just the phone mic is enough (of course you need a very quite environment.). The free version is a bit useless, but definitely worth to get the paid version.
4 ★ Pretty accurate,I had an old watch that was losing 4 mins a day,used this app and it showed the beat losing 4 mins a day,so it definitely works.
4 ★ You need a headset for this. I used a wired one, placed the microphone on the watch and was waiting. It is not a real timegrapher, but you can use it for older clocks or watches to find out within a minute, how good they are. I gave only 4 stars, because it didn't show the deviation per day. Congratulations and thanks to the developer!
5 ★ Works very well considering the limitations of it being a phone. Only complaint would be lack of documentation explaining what beat error is, what the graphs are trying to show, etc. Once you figure it out and use a headset for the microphone it works great. Other gripe is it is sometimes is slow to respond to the hold command, which is stop i guess. Overall really happy, especially since the price of this vs a pro stand alone machine.
5 ★ Great for Vostok mechanical watches. Yes, you can set the Target Frequency to 19,800 BPH. Simply tap the Target Frequency number at the top, then tap the Add button, then after that type in 19,800, then OK. A very simple, yet effective app to tune any mechanical watch. Highly recommended.
1 ★ this app doesn't work. i'm trying to tune a grandfather clock. the app records all the ticks properly but doesn't give me ANY useful info. it looks like the app is supposed to show actual frequency, beat error, etc, but nothing happens. all it does is show a plot of the recorded ticks. once got it set for 60 bpm, and high sensitivity. nothing but the plot. i wish it would work.
3 ★ A really useful app for measuring the performance of my mechanical watch(s) in real time, much cheaper than a "proper" timegrapher. One niggle however is that the automatic target frequencies don't recognise the 19800 BPH that my Vostok operates at, and there doesn't seem to be any way to manually set it as a target frequency. Is there any chance of either a 19800 BPH setting or the option to manually input a target frequency?
Previous versions
Clock Tuner 3.20 APK for Windows (#320, 1.5 MB)
Clock Tuner 3.16 APK for Windows (#316, 1.2 MB)
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