Kello analyzes the precision of mechanical watches against the iOS system clock using a microphone. How Kello works:All mechanically regulated watches are designed to start and stop 1000s of times every hour. If you hear a constant ticking noise, your watch is very likely a mechanical watch and its precision can be measured by Kello.

Kello alternatives

Emerald Time

Emerald Time uses Network Time Protocol to display the current time of day as defined by the international standard atomic clocks. Its accuracy is limited only by network latency and is usually accurate to less than +/-100 milliseconds. Emerald Time does not change the internal clock used by all other iPhone apps.)

  • rating 4.91667
  • size 1.4 MB

Watch Tracker

Watch Tracker is a revolutionary new app for tracking the accuracy of a wristwatch. Its dramatically easier and more accurate than any previous method. It synchronizes with an atomic clock, measures and records the difference, and displays graphs of all the data points youve recorded.- Uses best-fit analysis to accurately calculate how many seconds your watch gains or loses per day- Displays graphs of rates and variance- Can track multiple watches simultaneously- Saves data in CSV files that can be opened with any spreadsheet softwareWatch Tracker is made by the developer of tChess (the chess app that was featured in Apples Learn commercial for the iPad) and Learn Chess (the Apple Staff Favorite e-book).

  • size 1.3 MB

Hairspring

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. A detailed usage guide can be found here: http://www.diversminds.com/Hairspring/Hairspring.php

  • rating 3.88889
  • size 7.7 MB

Watch Tuner Timegrapher

Watch Tuner Timegrapher is a mechanical and automatic watch testing application. It displays the frequency diagram of the watch and measures rate, beat error, amplitude and beats per hour. If you have any questions, suggestions or any troubles using this app - dont hesitate to write me.

  • size 1.3 MB

ClockMaster - Clock Time Regulation

>>> Check out the demo videos at ClockMasterApp.com ClockMaster is an app dedicated to the measurement and regulation of mechanical pendulum clocks. The app uses a microphone to capture the audible ticks of the clocks escapement and pendulum, and then determines the beats per minute and the rate of error in seconds per day fast or slow. Note:There is an in-app upgrade that provides these additional features: Increased BPM measurement to the fourth decimal place - 1 sec per week rating accuracy Raw timing data export to file for use in spreadsheets to graph and analyze Support for external piezo acoustic sensors

  • size 10.4 MB