Captures d’écran


Measure and track the accuracy of your mechanical watches. Toolwatch is a free watch accuracy app trusted by the watchmaking industry's leaders and 15 000+ monthly users. Is your watch accurate? Should it be serviced? How does it compare versus other watches? Find out now by measuring the accuracy of your watch!

Toolwatch also brings to you the best tips, tailored on your watch for taking care of your watches.

"Toolwatch is the best watch accuracy app out there and it's free!" - Guillaume Cassez, Manufacture Jaeger-LeCoultre

"I regularly check the accuracy of my watch collection and Toolwatch is my favorite app for that." - Thomas Hulin, Van Cleef & Arpels

"I had the feeling my watch was running late, now I am sure thanks to Toolwatch and I could get my watch serviced for free as it was still under warranty!" - Benjamin Baudisson, Vacheron Constantin

"As a watch collector, knowing when to service my watch is crucial. Toolwatch helps me taking care of my mechanical watches." - Alex Ghotbi, Watch Specialist- Associate Director at Phillips Watches

As seen on ABlogToWatch, FratelloWatches, Theo & Harris, WristReview, Europa Star and more.

Find out now if your watch is accurate, it is FREE using Toolwatch mobile app.


Version 1.3.12

This app has been updated by Apple to display the Apple Watch app icon.

In this version, we focused on bug fixes. In details:

- Watches with more than 1 and less than 2 measures were not properly displayed;
- The autocompletion on calibres wasn't available;
- Errors messages weren't displayed properly;
- Wrong password on login was crashing the app.

Notes et avis

3,4 sur 5
364 notes

364 notes

RaquenoCruz ,

Seems to work well

This app is nothing more than a stop watch synced to the atomic clock, and for that reason it’s pretty difficult for this app NOT to work. Im pretty sure everyone getting erratic times aren’t setting the “start” time correctly. For instance, when the second hand on my watch struck 12 and I pressed the button, I had to adjust the ‘start’ time to match what my WATCH read at the moment, not what my phone read. When I hit the button my watch read 12:50 but my phone read 12:51. I needed to adjust the start time by -1 minute so the start time was at 12:50. I could be talking smack though who knows.
One downside for me was having to wait 12 hours for the test to conclude.

spirtnoye ,

Simple to use with minimal complaint!

This is a great app for timing your watches. It's simple, clean, and very easy to use. My ONLY complaint is that I cannot seem to edit the info of my watches once I've added a watch to the list of those I've timed. So, make sure you get it right the first time if you don't want to go on adding a watch multiple times. Other than that, it's my go-to for fast, simple, and accurate measurement of my timepieces. Definitely recommend this app if you're looking to see how well your watches are performing.

Antmar7 ,

Doesnt seem accurate

Im not sure if Im just not using this app correctly or if its just not accurate. I have a COSC certified watch and its typically about +4 seconds per day. The first couple of measurements looked ok with a +5 s/d and +7 s/d deviation. I assumed the deviation was due to being worn if a more rough environment. However, after sever other measurements were taken over two weeks, the readings ranged from -29s/d to +77 s/d which is outrageous considering the actual deviation appeared to be significanly less. The app then told me to get my watch serviced. I decided to compare the time to the national atomic clock, and according to that, my watch is approx +2 s/d. So either Im doing something wrong or the app is wrong. Im gonna lean towards the latter. Also, having to make an account is really stupid. I’ll give it another couple of chances to see if it stabilizes or I’ll delete it.

Confidentialité de l’app

Le développeur, Mathieu Nayrolles, n’a pas fourni de détails à Apple sur ses pratiques en matière de confidentialité et son traitement des données. Pour en savoir plus, consultez la politique de confidentialité du développeur.

Aucun détail fourni

Le développeur devra fournir les détails relatifs à la confidentialité lorsqu’il soumettra sa prochaine mise à jour.

Prend en charge

  • Partage familial

    Si vous avez activé le partage familial, vous pourrez partager cette app parmi six membres de votre famille.

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