Twixt Time 4+
Accuracy tracker for watches
Coldflower Design Corp.
Designed for iPhone
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- £9.99
iPhone Screenshots
Description
Twixt Time helps track the longterm accuracy of watches and clocks, by collecting & analyzing precisely timed snapshots of their dials.
Use Twixt Time to take a picture of the dial of an analog clock or watch. Each picture captures the exact time displayed on the dial. Twixt also notes the precise instant that the each snapshot was taken, by communicating with highly accurate NTP timeservers on the Internet.
A new snapshot of each timepiece can be added everyday. Using the information from 2 or more snapshots of the same timepiece, Twixt will calculate and show you how precisely the watch or clock is keeping time.
Twixt tracks the most recent rate, overall average rate, and cumulative gain or loss for each timepiece.
Supported dial configurations:
* Hour & minute hands with a central seconds hand
* Hour & minute hands with seconds displayed in a subdial
* Hour & minute hands only
Does Twixt Time work with GMT watches?
Yes. Twixt Time does not need to track the 24 hour hand of GMT watches to measure their precision. It is only necessary to track the hour, minute, and second hands. For GMT watches with central seconds, select the "central seconds" layout. For GMT watches with an offset or subdial seconds hand, select the "subdial seconds" layout. Twixt Time automatically monitors timezone changes based on the timezone setting of the iPhone or iPod touch.
Does Twixt Time work with chronograph watches?
Yes. The chronograph functions of a watch do not need to be measured to track the precision of the watch. Twixt Time tracks the precision of chronographs, as well as watches with other complications, in the exact same way that it tracks the precision of a normal, time-only watch. If the central seconds hand can be stopped and reset with the chronograph function, select the "subdial seconds" layout to track the small seconds hand with Twixt Time. If the central seconds hand continues to move when the chronograph is stopped, but the small seconds hand stops, select the "central seconds" layout to track the central seconds hand with Twixt Time. Most chronographs will use a subdial seconds layout.
Does Twixt Time work with watches that have an offset seconds hand?
Yes. For watches with a second hand that is not concentric with the hour and minute hands, select the "subdial seconds" layout.
Does Twixt Time work with quartz watches and clocks? Or other watches and clocks that are powered by batteries?
Yes. Twixt Time works with battery powered watches and clocks that display the time with an hour, minute, and/or second hand. It does not work with watches or clocks that only display the time digitally.
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Twixt Time is not affiliated with or endorsed by any watch or clock brand. The timepieces shown are for demonstration purposes only.
What’s New
Version 2023.3.2
This version of Twixt Time addresses an edge case wherein the app could crash when dismissing the camera immediately after launching it.
Ratings and Reviews
Excellent App for watch buffs
Really great app, not the only watch accuracy app out there but the way it's carried out is excellent. Sometimes takes a long time to open the camera, and it's annoying that you can't wipe out previous recordings that might have been less accurate and skew the results. Otherwise though a great app and essential to watch aficionados.
Great idea if it worked
Great Idea if it worked, I check 6 watches over a week I set the watches with the atomic clock app before starting and every day for a week against the same atomic clock app and noted the results and also used this app and I could not believe how poor the results on this app were one watch a Quartz lost less than a second over the week but this app showed it lost 14 sec a day, another mechanical watch gained 3 sec in the week but the app showed it lost 2.3 min a day and all others were as bad , I even checked a clock which had no second hand and it lost 2 min in the week but the app said it only lost 0.1 sec a day - a total waste of my money
Developer Response ,
Hi Twingo,
It sounds like some of your snapshots may be suffering from a parallax effect or some other issue. Please get in touch via twixt@coldflower.com so we can get to the bottom of this for you.
Twixt
This application is next to useless, when taking pictures the shutter does not open for the first picture so you cannot see the watch, and then have to take a second picture when the shutter opens for the second attempt. Quite often the app cannot asociate the correct time when the picture is taken (even with fast wireless connection), and it is fiddly to align all the hands on the watch manually. The killer bit though is that it is hopelessly inaccurate quoting variances of several minutes on watches that are running +/- 6 secs.
Developer Response ,
A lot of features have been added since version 1.01 to assist with the positioning of the hands. I would love to hear what you think of the app today. You may also find it helpful to note that it is important to capture successive Snapshots at least 24 hours apart. Snapshots that are taken less than a day apart will multiply any errors due to parallax, beat rate, and/or hand position. The purpose of the Timeline lock, which can be enabled or disabled in Settings, is to guard against such errors. For the most accurate results, it is best to wait 24 hours before adding a new Snapshot to a Timeline. If you have any questions or need further assistance, please feel most welcome to reach out via email, at twixt@coldflower.com
App Privacy
The developer, Coldflower Design Corp., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- Coldflower Design Corp.
- Size
- 3.1 MB
- Category
- Utilities
- Compatibility
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- iPhone
- Requires iOS 12.0 or later.
- iPod touch
- Requires iOS 12.0 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Languages
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English
- Age Rating
- 4+
- Copyright
- © Coldflower Design Corp.
- Price
- £9.99
Supports
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Family Sharing
Up to six family members can use this app with Family Sharing enabled.