
AlterLock is an anti-theft device designed for road bikes and motorcycles. By connecting with your smartphone, it activates an alarm and tracks location information to help protect your beloved ride. In this article, we introduce the features available when using AlterLock Gen3 with the free plan (without a subscription). We hope this helps those considering a purchase or debating whether to use a paid plan to clearly understand the differences in functionality.
Intro
AlterLock is designed primarily for use with a paid subscription plan, while the free plan is offered solely for “trial purposes” or “pre-purchase experience.” For full-scale theft protection, we recommend subscribing to a paid plan.
About the Free Plan
AlterLock can only be used when paired with the smartphone app (iOS/Android). The free plan (non-subscription state) refers to the condition where you have not subscribed to a paid plan. Under the free plan, internet-based communication features (such as GPS tracking) are not available, but you can still operate and receive notifications within Bluetooth range and use certain security functions. This usage mode is ideal for those who want to check the basic operation of the product or simply try it out first.
Features Available with the Free Plan
Even with the AlterLock Gen3 free plan, you can use the following features. These are effective as anti-theft measures within Bluetooth range, such as during short parking periods.

Alarm Activation via Motion Detection
When the device detects movement while locked, a loud alarm will sound. This audible warning helps deter theft by intimidating anyone who touches or tries to push the bike away.
Example: When parking your bike for a short time in front of a café for a quick stop, the alarm helps deter theft even when you are away from the bicycle.
Notification via Movement Detection
When the device detects movement and the alarm is triggered, a notification is sent to the smartphone connected via Bluetooth. If you are nearby, you can quickly notice the abnormality and respond, which is a key advantage. (Under the free plan, notifications will not be delivered if the paired smartphone is outside Bluetooth range.)
Example: While taking a break and your bike is out of sight, a notification will be sent to your smartphone when motion is detected.
Main Features Available with the Paid Subscription PLan
To fully maximize AlterLock’s anti-theft capabilities, a paid subscription plan is required. With the paid plan, you can access the following features. Additionally, you can manage up to three devices with a single app.
| Function | Free plan | Paid plan |
|---|---|---|
| Alarm function | 〇 | 〇 |
| Notification within Bluetooth range | 〇 | 〇 |
| Notification outside Bluetooth range | × | 〇 |
| Tracking feature of the device | × | 〇 |
| Crash detection feature of the device | × | 〇 |
| Number of Devices That Can Be Registered per Account | 1 device | 3 devices |
Payment method
- In-App Purchase (iOS/Android): You can purchase and manage directly from the app.
- Purchase via Official Website: Subscribing through the website is more cost-effective since it avoids Apple/Google fees.
※You can resume your subscription at any time. It’s possible to pause the plan during periods of non-use and restart it whenever needed.
Summary
Even with the free plan, AlterLock Gen3 offers basic anti-theft features such as alarm activation and notifications within Bluetooth range. However, its full functionality is unlocked only with a paid plan. The free plan is positioned as a “trial,” suitable for initial checks after purchase or temporary use. To reliably protect your beloved bike, we strongly recommend using the paid plan, which enables location tracking. Choose between the monthly or annual plan according to your usage style, and safeguard your ride with AlterLock.