AlterLock - Bicycle Guard

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About this app

The application to use the AlterLock device to watch over your bike.
AlterLock is a bicycle guard service. Keep an eye on your bike with a movement detection alarm and smartphone notification.
In the unlikely event of a theft, GPS tracking helps you find it.
It's a new way to live your cycling life with peace of mind.

Alarm deters thieves
When AlterLock detects a movement, its alarm sounds, deterring theft and tampering.

Peace of mind with smartphone notifications
When AlterLock detects a movement, it notifies your phone, so you know to check your bike.

Advanced tracking capabilities
AlterLock uses both a GPS and Wi-Fi sensor to calculate its location accurately.

App Features
- Register your bike's photo, specs, and VIN number
- Toggle the device lock mode
- Device settings (for various situations including movement detection level, alarm on/off, alarm duration, first alarm sound, number of alarms, regular transmission, etc.)
- Push notifications and audible alarms when the device detects movement or receives location information
- View location and history while tracking on the map screen
- Tracks maintenance history for safer riding
- Manage up to 3 bikes by one account

- Must be a registered user to use this service
- To take advantage of the anti-theft features, you will need to purchase an AlterLock device and subscribe to the Bicycle Guard Service.
- This product does not guarantee the prevention of bicycle theft.
- It can be used within Sigfox's service area (primarily Europe). Outside the service area, all functions will work within the Bluetooth transmission range. You can check the service area from the below page.

How to use this service

Sigfox Communication Areas

Compatible bikes
It can be attached to a standard sports bike using its bottle holder's base or in conjunction with your existing bottle holder.
(ex. Road bikes、Hybrid bikes、MTB、Mini velo etc.)

Supported devices
Compatible with BLE-supported Android 5.0 or newer.

* View a list of verified compatible smartphones.
Updated on
Nov 27, 2023

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
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted