Stealth Software Update

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< Important: For Mac users >
Mac OS X 10.6 or later is required to install the CATEYE Sync Ver.1.1.3.
Please do not install this version if you are using the CATEYE Sync with Mac OS X 10.4.x - 10.5.x. Otherwise you may not be able to use the CATEYE Sync after this update.

  • Precautions when Installing Ver. 1.1.3

    • If you are using the previous version of CATEYESync, uninstall it before running the installer.
    • Please disconnect the USB cable when you install the Ver.1.1.3.

    * In Mac OS X 10.8 and later versions, it may not be possible to install the software unless you open System Preferences, select "Security & Privacy", and on the "General" tab, change the setting for "Allow applications downloaded from : Anywhere".

    Following the successful download and installation of the CatEye Sync software, we strongly recommend that you return the Security Preferences back to where it was before installation.

    Uninstall Method:

    On Windows (7/8/8.1): Remove the CATEYESync from the [Programs and Features] or [Uninstall a Program] list in the [Control Panel].

    On Windows (10): To remove the CATEYESync, open the Start menu and click [Settings] > [System] > [Apps & features].
    Select the CATEYESync in the list of installed apps, and then click [Uninstall].

    On Mac: Drag the CATEYESync and cateyeAgent folders from the Application folder to the Trash. Then from the Finder menu, select "Empty Trash".

CATEYE Sync is software for downloading trip data [route information and heart rate, cadence, and power measurements recorded by STEALTH (CC-GL10/11/50/51) and QSeries (MSC-CY300/200) computers] to a PC and uploading it to a website. With CATEYE Sync you can:

  • Upload data to this website with just one click of a button
  • Manage trip data that you have saved
  • Set up cyclocomputer/multi sports computer from your PC
  • Data migration from e-Train Data
  • for Windows Download
  • for Mac Download
  • If you use INOU MSC-GC100, please download 'CATEYE Sync for INOU' below.
Operating system:
Windows 7 / 8.1 / 10
Mac OS 10.10 or later
Internet Explorer 7 or later
Safari 4.0 or later, Firefox
Google Chrome 5.0 or later
Must meet recommended enviroment for respective OS and must have sufficient disk space.
Last updated:
1.1.3 (Mac), 1.1.3 (Win)



CATEYE Sync for INOU is software for downloading trip data (route information plus ride pictures and videos recorded by INOU) to a PC and uploading it to a website. With CATEYE Sync for INOU you can:

  • Upload data to this website with just one click of a button
  • Manage photos and movie data that you have saved
  • Set up INOU's auto-shooting interval and video resolution
  • Update INOU unit firmware
  • for Windows Download
  • for Mac Download
Operating system:
Windows XP SP3 / Vista / 7 /
8 / 8.1 / 10  Mac OS 10.6 or later
Last updated:

CATEYE Atlas is a website where you can view trips and data logged with your CATEYE computer.
The site uses Google Maps to show a record of every route you choose to upload, making it the perfect way to log your travels. What's more, if you use an INOU - CATEYE's cutting-edge trip recorder with built-in camera - you'll also be able to enjoy photos and videos you've taken along the way. You can also communicate with other site members by commenting on their trips, making CATEYE Atlas a great place to expand your cycling horizons.
Registration is free, so sign up now and start uploading your favorite routes!

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