# Twixt Time — Accuracy tracker for watches

> Timepiece accuracy tracker using dial snapshots and internet time synchronization. (iPhone/iPad app by Coldflower Design Corp..)

- Source: https://appshunter.io/ios/app/twixt-time/id541686012 (this page in markdown: same URL + `.md`)
- Developer: [Coldflower Design Corp.](https://appshunter.io/developer/380539256)
- Category: Utilities, Productivity
- Price: $9.99 (on sale, was $19.99)
- Rating: 3.90/5 from 14 App Store ratings · 59 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 3 MB
- Languages: American English
- Released: 2013-04-17
- Data updated: 2026-08-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/twixt-time/id541686012/reviews.md

## What is Twixt Time?

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.

## Key features

- Track watch and clock accuracy
- Precisely timed dial snapshots
- Analyze rate and cumulative gain/loss
- Supports various dial configurations
- Automatic timezone monitoring
- Works with GMT and chronograph watches

## Recent user reviews (10 of 59)

All indexed reviews: https://appshunter.io/ios/app/twixt-time/id541686012/reviews.md

### 5/5 — Works great

*2025-12-15, version 2023.3.2*

Better than any of the others. Unique way of capturing time makes this app a cut above.

### 5/5 — This app saved me a huge headache!

*2023-11-03, version 2023.3.2*

I have been using Twixt for nearly a decade and recently took my watch in for a service (which thanks to Twixt was showing a slow degradation in performance over a couple of years). When I got the repaired watch back from the watchmaker something looked amiss but I couldn't tell what it was. Thanks to Twixt I was able to see photos of the watch before the service and immediately it was clear that the watchmaker had replaced the hands with slightly different ones. I never would have been able to know this without a long history of photos of the watch. It was also very easy to show the watchmaker the error since there wasn't much to argue with about the clear evidence of the incorrect hands. I was able to share screen shots with the watchmaker to show the change - an idea to improve the app would be an ability to export/import timelines. Otherwise the app has been matured to perfection as the developer has made continuous improvements to it over the years. Thanks!

### 1/5 — Tedious, inaccurate

*2023-05-19*

I didn't think it was possible for them to make an app worse than Kello, but they did. This is very tedious to use and very inccurate. You have to take a photo of your watch and manually locate the cetner, 12 o'clock, hour, minute and second hands on the screen...repeat to get a reading. After all that, it said a mechanical watch of mine was runnning at +12 minutes per day---which is not even in the ballpark. A real timegrapher shows it is running ~+4 seconds. Don't bother with this one.

**Developer response:** Hi CAG_1337, We have added a lot of features since version 1.02 to assist with the positioning of the hands and 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

UPDATE:

Thank you for taking the time to repost the review that you wrote back in 2013. I can only begin to imagine how frustrated you must feel. I would love to help you get the most out of Twixt Time and would be happy to investigate why you encountered the results that you did. As before, please feel most welcome to reach out to twixt@coldflower.com for support. Mention that you are CAG_1337 and I will attend to you personally, so that you do not need to articulate again anything that you have already here. Thank you for your passion for horology and precision. I admire it.

### 5/5 — Great App for Watch People

*2023-01-20, version 1.71*

I’ve been using this app for several years, and it just works. Allows me to keep track of the timekeeping for my watches in a simple yet effective way. Thank you!

### 1/5 — Cannot Rename, Cannot Delete, No Cloud Sync

*2020-06-07, version 1.67*

Too expensive for not getting these basic features!

### 1/5 — Don’t bother.

*2019-11-04, version 1.66*

I like to keep track of my watch accuracy. I thought the idea of using a photo would prove to be easy and very accurate. 

It turns out you have to manually set the positions of the hands each time. What’s more if it’s in a mid way point it struggles to discern which minute you mean. 

I also had hoped that it would be automatic and recognise each hand. It doesn’t. There’s nothing automatic about it. 

Basically there’s far better apps out there like WatchTracker that do it for less.

### 2/5 — Always says 12+ hrs even if it’s only a few seconds

*2018-10-11, version 1.64*

The app was working well but now it always displays as the time advanced as 12+hrs when it may have only been a few seconds. Sad to see

### 5/5 — Latest version back to running as expected

*2018-09-15, version 1.64*

Developer contacted me advising that the app was fixed. Running an iPhone 8 Plus now on iOS 11.4.1 and no issues with snapping a photo and locating dial points. Back to running as it should be and am happy to revise my review back up to five stars again.

### 4/5 — Plutôt bien fait

*2017-12-30*

C’est plutôt bien fait et ça permet de suivre facilement la précisions de votre collection de montres. 
Je ne sais pas si c’est très précis mais la précision est facile à vérifier.

### 1/5 — Used to be perfect, now it crashes constantly.

*2017-09-24, version 1.60*

This app used to be amazing, however now it crashes every time you try to take a picture. Very disappointed! Get Tooltime instead. Developer seem unwilling to fix it.

Update September 23,2017:

App now crashes every time you try to resize a picture. You take the pic, app blows it way out of proportion (to the point it's nearly unusable), you zoom out to try and navigate m, and the damned thing crashes STILL! 

Developer is cruel and uncaring, refuses to fix.

## Frequently asked questions about Twixt Time

### What does Twixt Time do?

Twixt Time is an application designed to track the long-term accuracy of watches and clocks. It achieves this by allowing users to take precisely timed snapshots of their timepiece's dial. The app then analyzes this data against highly accurate internet time servers to calculate the rate and cumulative gain or loss of the timepiece.

### How does Twixt Time track accuracy?

You take a picture of your watch or clock's dial, and the app records the exact time the photo was taken using internet time servers. By taking multiple snapshots over time, the app can calculate how precisely your timepiece is keeping time, showing its recent rate, overall average rate, and cumulative gain or loss.

### Is Twixt Time free to use?

Yes, based on the provided information, Twixt Time is a free application. It does not have in-app purchases or advertisements, indicating a completely free user experience.

### What types of watches and clocks are supported?

The app supports watches and clocks with hour, minute, and/or second hands, including those with central seconds, subdial seconds, or no seconds hand. It is compatible with GMT watches, chronograph watches, and battery-powered (quartz) watches and clocks that display time visually, but not those that only show digital readouts.

### Can Twixt Time be used for GMT or chronograph watches?

Yes, Twixt Time is designed to work with GMT and chronograph watches. For GMT watches, it only needs to track the hour, minute, and second hands, and it automatically monitors timezone changes. For chronographs, the app tracks the timekeeping precision regardless of the chronograph functions, using specific layout selections based on how the seconds hand behaves.

## Version history (last 5 releases)

### 2023.3.2 — 2023-08-14

This version of Twixt Time addresses an edge case wherein the app could crash when dismissing the camera immediately after launching it.

### 2023.3.1 — 2023-08-01

This update brings improvements to the layout engine on newer iOS devices.

### 2023.2.1 — 2023-05-26

This update to Twixt Time introduces a quick and fluid way to access the all of the details for a given Timeline. Simply swipe a Timeline's row from right to left to pull its detail screen into view, including a history of all of its Snapshots.

### 2023.1.2 — 2023-03-29

This update to Twixt Time adds search for larger collections of timelines.

### 1.72 — 2023-02-28

This update brings additional options for editing a timeline. 

The name of a timeline can now be changed after it was created.

In addition to being hidden from a timeline, snapshots can now be deleted in full or in part, enabling timing information to be retained while freeing up storage space previously occupied by snapshot images.

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## More apps by Coldflower Design Corp.

- [Kello](https://appshunter.io/ios/app/kello/id380539253)

All apps by Coldflower Design Corp.: https://appshunter.io/developer/380539256

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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 2026-08-18.*