About SHv4 Calculator
Use this free application to calculate the speedometer error of your vehicle and generate setup instructions for your SpeedoHealer v4 module. You can also access troubleshooting information. After installation, it does...
Use this free application to calculate the speedometer error of your vehicle and generate setup instructions for your SpeedoHealer v4 module. You can also access troubleshooting information. After installation, it does not use internet connection, it's Ad-free. On most modern motorcycles, with factory speedometer error being as high as 10%, even a modest sprocket gearing change can have the speedometer off by 15%. The sprocket change will also cause higher odometer reading, creating a negative resale factor for no valid reason. The SpeedoHealer is an inexpensive, convenient and very simple way to fix your speedo and odo. Compatible with all motorcycles with non cable driven speedometer. Plug 'n go SH kits are available for selected Harley, Honda, Hyosung, Buell, Ducati, Kawasaki, KTM, Suzuki, Triumph and Yamaha motorcycles. The SpeedoHealer can also be installed on cars which have a 2- or 3-wire speed sensor. Please check out our website for other cool and useful products for your motorcycle.
Version History - Minor improvements 1.2.1 01/21/2025 - Minor improvements 1.2.0 01/16/2025 - added Japan and Turkey language. 1.1.6 07/05/2024 - added German and Russian language. 1.1.5 04/10/2024 - Changed the app icon and added French language. 1.1.0 04/04/2024 Support for iOS 9 1.0.2 09/28/2015 Added support for iPad and more languages 1.0.1 04/22/2015 1.0.0 04/02/2015
Previous Versions
Here you can find the changelog of SHv4 Calculator since it was posted on our website on 2025-05-02 16:02:54.
The latest version is 1.2.1 and it was updated on 2026-10-14 08:59:03. See below the changes in each version.
SHv4 Calculator version 1.2.1
Updated At: 2026-10-14
Changes: Version History - Minor improvements 1.2.1 01/21/2025 - Minor improvements 1.2.0 01/16/2025 - added Japan and Turkey language. 1.1.6 07/05/2024 - added German and Russian language. 1.1.5 04/10/2024 - Changed the app icon and added French language. 1.1.0 04/04/2024 Support for iOS 9 1.0.2 09/28/2015 Added support for iPad and more languages 1.0.1 04/22/2015 1.0.0 04/02/2015
SHv4 Calculator version 1.2.1
Updated At: 2026-09-04
Changes: Version History - Minor improvements 1.2.1 01/21/2025 - Minor improvements 1.2.0 01/16/2025 - added Japan and Turkey language. 1.1.6 07/05/2024 - added German and Russian language. 1.1.5 04/10/2024 - Changed the app icon and added French language. 1.1.0 04/04/2024 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Support for iOS 9 1.0.2 09/28/2015 Added support for iPad and more languages 1.0.1 04/22/2015 1.0.0 04/02/2015
SHv4 Calculator version 1.2.1
Updated At: 2026-08-23
Changes: Version History - Minor improvements 1.2.1 01/21/2025 - Minor improvements 1.2.0 01/16/2025 - added Japan and Turkey language. 1.1.6 07/05/2024 - added German and Russian language. 1.1.5 04/10/2024 - Changed the app icon and added French language. 1.1.0 04/04/2024 This update from Apple will improve the functionality of this app. No new features are included.
Support for iOS 9 1.0.2 09/28/2015 Added support for iPad and more languages 1.0.1 04/22/2015 1.0.0 04/02/2015
SHv4 Calculator version 1.2.1
Updated At: 2025-01-21
Changes: - Minor improvements
SHv4 Calculator version 1.2.1
Updated At: 2025-01-21
Changes: Jan 21, 2025
Version 1.2.1
- Minor improvements
Disclaimer
Official App Store Link
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