AlterLock CycleGuardService

How to use this service

01. Pre-purchase checks

Service area check

The AlterLock device communicates using Sigfox. Be sure to check whether your area is within the Sigfox service area.

Zip code:

Available areas are being expanded!

You can find out more about Sigfoxhere.

If a pop-up asking for permission to use location information appears, select Allow.
Note: On a PC, enter your postcode to check your area.

Smartphone OS compatibility check

Make sure your smartphone is compatible with the AlterLock app.

Compatible with BLE-enabled Android 5.0 and above and iOS 11 and above.
Note: Some Android devices may not work even though their OS version is compatible. You’ll find more information here.

02. Buy an AlterLock device


*Service fee is charged separately.

03. Install the app

You can download the app free of charge from the link below.

Download on the AppStore GET IT ON Google Play

04. Subscription to services

To use your AlterLock device, you need to subscribe to the Bicycle Guard Service.

Monthly Plan
€3.99(including tax)
£3.49(including tax)
Annual Plan
€39.99(including tax)
£34.99(including tax)

First 30 days free!
You can use up to three AlterLock devices.

Service agreement

Be sure to install the app in advance and register your AlterLock device before signing up.
The subscription is automatically renewed unless you cancel during the subscription period.
You can cancel during the coupon period and free trial period.

You’re good to go!

Be sure to register your AlterLock device in the app to use it.