Start with a reference
Check network time and see whether the reference is fresh. Choose the analog dial or digital display that feels right.
A little closer to time
Every watch
has a rhythm.
Know yours.
A clear reference clock. A thoughtful way to understand your watch. Meet Temporal Atomic Clock.
Explore the app Coming soon for iPhone and iPad
Free reference clock · Optional one-time unlock
Actual app preview · October 2026
Analog digitalLocal time UTCYour data, on your deviceNo subscriptions
The pleasure of knowing
From “a little fast”
to a clearer picture.
A few seconds can tell you a lot. Build a simple record of how your watch keeps time, without turning it into a chore.
Capture your watch
Record what your watch shows. The app keeps that reading alongside its reference, ready for your next comparison.
Discover its daily rate
Return at least 24 hours later. Your second qualifying reading reveals the estimated seconds gained or lost per day.
Small details. A lasting story.
More than
a number.
See your watch’s estimated daily rate in plain language. Keep readings, notes and separate measurement runs together, so every check adds context.
Your first daily result is free to see and keep. Tap timing and network conditions affect the estimate.
Find your starting point →
Digital face · Dark appearance
Make yourself at home
A classic dial.
A digital glance.
Both, always.
There’s no need to choose a side. Switch between analog and digital whenever you like. Keep local time close, or turn to UTC.
01
Light, dark or your system appearance
02
A foreground guide to help set your watch
03
Optional reminders for your next reading
A considered kind of access
Start with time.
Stay for the story.
Your starting point
A useful beginning.
Free.
- Network-reference clock
- Analog and digital faces
- Local time, UTC and appearance choices
- Watch-setting guide
- One watch’s first two qualifying readings
- Your full first estimated daily rate
Take the two readings at least 24 hours apart.
Keep the story going
One unlock.
No subscription.
- Continue measuring your watch
- Add more timepieces
- Start new measurement runs
- Keep a longer history of readings and notes
A single optional in-app purchase. Your region’s price appears in the App Store purchase sheet before you confirm.
Existing readings stay readable and exportable if paid access ends.
A quieter relationship with your phone
No account. No ads.
Your collection stays with you.
Watch data is stored locally. Export a backup or CSV when you choose. The app has no product analytics SDK. Network time checks contact your selected time server.
Read our privacy policy →Before your first reading
A few good
questions.
What can I use for free?
The reference clock, analog and digital faces, and watch-setting guide are free. You can record the first two qualifying readings for one watch, at least 24 hours apart, and see its first estimated daily rate.
What does the one-time unlock add?
Continued readings, new measurement runs and additional timepieces. There is no recurring subscription. The App Store purchase sheet shows the price in your region before you buy.
Does the app measure my watch automatically?
You record what your watch shows against a network time reference. Take another reading at least 24 hours later to estimate how many seconds it gains or loses per day. Tap timing and network conditions affect the estimate.
Can I switch between analog and digital?
Yes. Both faces are included. Choose local time or UTC, and use the light, dark or system appearance.
Do I need an account?
No. Your watches, readings and notes are stored on your device. You can export a backup or CSV and choose optional local reminders. There are no ads or product analytics.
Time, with a little more meaning
Get to know
the watch you love.
Coming soon for iPhone and iPad.
We’re here if you need us →