Chronos

Contains ads
4.4
746 reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Introducing Chronos, your essential smartwatch companion app. Seamlessly connect your smartwatch and smartphone for a truly integrated and convenient experience.

Disclaimer: This app is intended solely for general fitness and wellness purposes and is not for medical use. It is not a medical device. Any health data from the smartwatch shown in the Chronos app is strictly for general fitness and wellness tracking and should not be used for medical purposes. Users should consult with a qualified healthcare professional for medical advice and guidance.

Currently, it supports the following smartwatches:
- DT78
https://www.dtno1.com/business-smartwatch/dt78.html
- DT66
https://www.dtno1.com/business-smartwatch/dt66.html
- X-TIGI HW21
https://www.x-tigi.com/index.php/HW21


Stay Connected Effortlessly:
Receive real-time notifications directly on your wrist, ensuring you never miss an important message, call, or alert.

Customizable Notifications:
Take control of your wrist by filtering and customizing notifications from your installed apps. Get only the updates that matter to you.

Seamless Data Sync:
Synchronize your settings and data effortlessly between your smartwatch and the app. Keep your devices perfectly in tune and stay on top of your health and fitness goals.

Personalize Your Watchface:
Chronos lets you create your own custom watchface. Move, delete, or replace watchface elements to design a look that's uniquely yours.

User-Centric Approach:
We're all about our users. Chronos is continually developed with your preferences and feedback in mind, ensuring an intuitive smartwatch experience.

Community Collaboration:
Join our vibrant community on the Chronos 4PDA forum and Telegram channel, where you can discuss, receive assistance, and suggest features in real-time.

Global Contribution:
Contribute to resource refinement through an open translation document, making Chronos a global community-powered innovation.

Chronos isn't just an app; it's your portal to a more connected, personalized, and community-driven smartwatch experience. Download now and step into the future with Chronos!
Updated on
Dec 14, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity and App info and performance
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.4
737 reviews
William Bulchi
January 2, 2026
it's a great app, but i'm having some issues, Gmail does not notify on my DT78, and the watch keeps disconnecting from the app all the time, i'd like to solve that
Did you find this helpful?
Raymond Lum
February 27, 2024
I am torn about this app. I am using a HK9 Ultra 2 and for many of the features Chronos meets my expectations. Then I find it doesn't allow me to disassociate my phone without setting up a second device. The age seems to be set and appears to need to be updated manually. But the notifications work... except that it is cutting off the first letter of every message I receive. So currently... I have deleted it from my phone again. It has been uninstalled 5 times in 3 days. I want to love it.
1 person found this review helpful
Did you find this helpful?
fbiego
February 27, 2024
Thank you for your feedback. We're addressing disconnection and age updating issues. To avoid notification text cutoff, enable notification titles in advanced settings. We appreciate your patience as we enhance Chronos for a better experience.
Lindsay Brambles
December 24, 2023
Much better than the Wearfit Pro app originally paired with my HK9 Ultra plus 2 watch. However, it is still missing some features. If you want to do things like GPS route tracking and add different watch faces to the watch, you'll still need the Wearfit Pro. I also wish they could find some wayusers could upgrade the firmware for the HK9 Ultra plus 2, as this doesn't seem to be working for me on the Wearfit Pro app. Still, I appreciate that it has made the watch useable for me.
6 people found this review helpful
Did you find this helpful?
fbiego
December 28, 2023
Thanks for the feedback! As a third-party app, we can't provide firmware updates or replicate all original app features. Our work is based on research and might not cover all functionalities. Appreciate your understanding!

What’s new

🐞 Bug fixes & improvements