Add a watch in seconds
Search a built-in catalog of more than 36,000 references from over 120 brands, and Horology fills in the case, movement, calibre and dial details. Found a watch on a dealer's website? Share the page to Horology: it reads the listing on your iPhone, with Apple Intelligence on devices that have it, and suggests the matching reference.
Every watch gets a dial drawn in its own colors, or Studio photos with the background removed on your iPhone. Keep reference and serial numbers, papers, purchase details and notes together, with a wishlist and a record of the watches you've sold.
Log what you wear
Log today's watch with one tap in the app, from a widget, with Siri, from Control Center or on Apple Watch. Streaks, a wear calendar and Pick for me, which suggests the watch that has waited longest, help you wear your whole collection.
Insights
See your rotation score, cost per wear, collection value and wear by weekday and month, updated every time you log a watch.
Accuracy
Time Check compares a watch with atomic time over a day for its real daily rate. The Timegrapher listens through your iPhone's microphone for rate, beat error and amplitude, in one position or six.
Service and insurance
Log every service and battery change, and get a reminder when the next one is due, based on the movement. Export a PDF insurance report, or the whole collection as a CSV spreadsheet.
Private by design
No account and no ads. Your collection stays on your devices and syncs through your own iCloud. Listings are read and microphone sound is analyzed on your iPhone, and sound is never recorded.
Free and Pro
| Free | Horology Pro | |
|---|---|---|
| Watches | Up to 3 | Unlimited |
| Catalog, wishlist and sold watches | Yes | Yes |
| Wear log, streaks and Pick for me | Yes | Yes |
| Time Check | Yes | Yes |
| Service log and shareable watch cards | Yes | Yes |
| Timegrapher and six-position test | No | Yes |
| Insights and accuracy history | No | Yes |
| Service reminders | No | Yes |
| Insurance PDF and CSV export | No | Yes |
| Studio photos | No | Yes |
Horology Pro is a monthly or yearly subscription, the yearly plan starting with a free week, or a one-time lifetime purchase. The App Store shows the prices in your currency.
Questions
Is Horology free?
Yes. Horology is a free download and holds up to three watches, with wear logging, Time Check and the service log. Horology Pro unlocks unlimited watches and the advanced tools.
Does it work on iPad and Apple Watch?
Yes. Horology runs on iPhone and iPad with iOS 26 or later, and on Apple Watch with watchOS 26 or later, where you can see and log today's watch.
Do I need an account?
No. There's no Horology account: your collection syncs through your own iCloud.
Which languages is it in?
English, Simplified and Traditional Chinese, Arabic, Japanese, German, French, Italian, Spanish, Korean, Brazilian Portuguese, Dutch and Turkish.
Is Horology affiliated with watch brands?
No. Brand and model names identify the references in the catalog; Horology is not affiliated with any watch brand.