Hairspring

Hairspring

By Jinfei Sun

  • Category: Utilities
  • Release Date: 2015-03-30
  • Current Version: 2.0.0
  • Adult Rating: 4+
  • File Size: 7.33 MB
  • Developer: Jinfei Sun
  • Compatibility: Requires iOS 8.0 or later.
Score: 3.5
3.5
From 45 Ratings

Description

Hairspring turns your device into a powerful mechanical watch timing machine. It measures the precision of mechanical watches, with an accuracy of at lease ±1s/day, by analyzing the tick-tock sound using the microphone of the device. It supports a wide range of frequencies, covering almost all mechanical watches available on the market: - 14,400 VPH - 16,200 VPH - 18,000 VPH - 19,800 VPH - 21,600 VPH - 23,400 VPH - 25,200 VPH - 28,800 VPH - 36,000 VPH In case you don't know your watch's frequency, you may use frequency auto detect. The measuring time can be set from 30 seconds to 3 minutes, to get a balance between response time and accuracy. An oscilloscope shows the audio waveform in real time. It's quite handy for monitoring the status and diagnosing some common problems. The result is plotted in a chart, which can be saved for later reference. Also, it can record and save a long-time measurement, e.g. for 12 hours, to analyze the long-time performance of the watch. To use Hairspring, just place the microphone tightly close to the watch back, then set the parameters. After collecting enough data, the result will be shown. A detailed usage guide can be found here: http://www.diversminds.com/Hairspring/Hairspring.php

Screenshots

Reviews

  • Waste of $5 and no help from apple

    1
    By EC3ATP
    Does nothing. Waste of $5 and typical apple help routes you to developer site in china and provides no ability to get a refund on the thing that doesn’t work from apple from whom I purchased it.... awesome.
  • Does not work!

    1
    By watchmastergeneral
    iPhone X never detects signal. Faulty app! Do not Buy!
  • Gets the job done well enough

    5
    By Techies crunch
    Was able to adjust my watch with out much effort. Ended up closing the mic along with the watch laying on top of it in my watch box to help isolate the sound and seemed to work pretty well. Does require you to find a pretty quite place to use the app.
  • Functional but quirky

    3
    By Pmaz2011
    I tried to make measurements for various duration but it does that without storing the results. I’d expect each measurement it does and stores the result. Am I missing something here? Could be certainly better.
  • Doesn’t detect watch

    1
    By Watch888
    I’ve tried this on multiple watches using Apple ear buds as indicated in the app. It will not pick up the sound for any watch I’m trying to measure. I’ve wrapped the mic and watch in towels and am in a silent room. Moving on to something else.
  • DOES NOT WORK

    1
    By Hazem E
    Don’t bother - it doesn’t work! I tried many ways to make it recognize the sound and it fails at the data collection stage!
  • Crazy fluctuations. Infuriating beyond belief.

    1
    By kevinc1218b
    DO NOT BUY! The readings are accurate for around 10-20 seconds. You sit for 2 minutes patiently and then suddenly it goes from normal +6 for example up to +400 seconds. This is obviously a serious error on the app. Then it goes down to -300. The only way you can “re-synchronize” is if you go to settings and change the measuring time to another time frame like 30s to 1 min. Then it reads well for 20 sec and then goes crazy again. This is absolutely infuriating. If you breathe too loud, drop a pen, or even move around in your chair. The readings go ballistic. Without exception the most infuriating timegrapher app I have used.
  • Crazy Variances and Infuriating to Use

    1
    By kevinc1218
    The app is accurate when it does read. Use the Apple headphone mic or another plug in headphone mic. Bose for some reason doesn’t work well. The readings are accurate for around 10-20 seconds. You sit for 2 minutes patiently and then suddenly it goes from normal +6 for example up to +400 seconds. This is obviously a serious error on the app. Then it goes down to -300. The only way you can “re-synchronize” is if you go to settings and change the measuring time to another time frame like 30s to 1 min. Then it reads well for 20 sec and then goes crazy again. This is absolutely infuriating. If you breathe too loud, drop a pen, or even move around in your chair, any sound like a bird chirping makes the readings go ballistic. Without exception the most infuriating timegrapher app I have used. Just buy a $150 timegrapher on Amazon and return it when you don’t need it.
  • Works amazingly well

    5
    By DS1951
    I was skeptical but figured I would give this a shot. The instructions (and some other reviews) say you should use the headphone mic in a very quiet place, but I wasn’t patient enough to wait, so I put my iPhone directly on an Omega Seamaster 300 Master Co-Axial (there was also a fair amount of background noise). It immediately detected the (very unusual) 25,200 vph rate and after 30 seconds came out with a time of +2.2 which is almost exactly what I got manually timing it off the atomic clock. The fact that it immediately recognized the beat rate really impressed me. There’s virtually no other watches that use that so it was definitely not just an educated guess, and again this was a significantly less than ideal reading environment. Very cool!
  • Cool App

    5
    By W@kaMan
    Works for me first time, no problems. This is a very useful app for watch aficionados.

Comments

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