# AlterLock — Operate Anti-Theft Device

> Anti-theft device companion app with alarms, GPS tracking, and vehicle management. (iPhone/iPad app by NEXTSCAPE INC..)

- Source: https://appshunter.io/ios/app/alterlock/id1418389534 (this page in markdown: same URL + `.md`)
- Developer: [NEXTSCAPE INC.](https://appshunter.io/developer/434362565)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 3.70/5 from 3 App Store ratings · 51 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 87 MB
- Languages: French (France), German (Germany), American English, European Spanish, Italian, Japanese
- Released: 2021-02-02
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/alterlock/id1418389534/reviews.md

## What is AlterLock?

The AlterLock app works in conjunction with the theft prevention device "AlterLock" to keep an eye on your beloved vehicle, including bicycles, motorcycles, and cars. The AlterLock device provides peace of mind through loud alarms, smartphone notifications, and GPS tracking capabilities.

Key features include:
1. Alarm to Deter Thieves: A movement-detection alarm sounds directly from the device, deterring criminals and providing a strong deterrent against theft and vandalism.
2. Smartphone Notifications for Assurance: If the device detects movement, it will send a unique notification sound to your smartphone, allowing you to quickly notice and rush to your vehicle.
3. Independent Communication Function: The device can communicate on its own, sending notifications and location information even outside the Bluetooth range.
4. Advanced Tracking Ability: It attempts to pinpoint location information indoors and outdoors by receiving not only precise GPS signals but also Wi-Fi and cell tower signals.

Additional App Functions:
- Register photos, specs, and frame numbers of your vehicles.
- Toggle the device's lock mode.
- Adjust various device settings (detection sensitivity, alarm patterns, on/off, duration of sound, regular communication, accident detection, etc.).
- Display tracking location information and history on the map screen.
- Manage up to three vehicles and devices.

Please note:
- User registration is required to use the service.
- Purchase of the AlterLock device and a service agreement is also required.
- This service does not guarantee theft prevention.

For more details on service contracts and usage fees, please visit:
https://alterlock.net/en/service-description

Terms and Conditions:
https://alterlock.net/en/service-terms

Privacy Policy:
https://alterlock.net/en/privacy-policy

## Key features

- Movement-detection alarm
- Smartphone notifications
- Independent communication
- Advanced GPS tracking
- Vehicle registration
- Device settings adjustment
- Map-based location history

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |
| Annual Plan | $39.95 | per year |


## Recent user reviews (10 of 51)

All indexed reviews: https://appshunter.io/ios/app/alterlock/id1418389534/reviews.md

### 3/5 — 離れた場所に置いていても位置情報が分かるのは便利です。

*2026-07-18*

スマホを消音モードにしている時、バイブレーションが一回しか鳴らないので、
長くなるように調整出来たら大変ありがたいです。

### 5/5 — ウィジットからの操作を希望

*2026-05-26*

ウィジットからロック／アンロックできるように検討していただけないでしょうか。

### 5/5 — 安心

*2026-04-19*

思ったより音は小さいですが、しっかりと周囲にはロック音もアンロック音も警告音も聞こえて安心できます。

### 2/5 — 蓄電はあるのだけれど

*2026-03-18*

ちょいちょいリセットかけないとダメ　ハズレを引いただけかもしれないけど

### 1/5 — 2台目の登録が出来ない

*2026-02-10, version 2.3.16*

マヂでアプリはクソ

### 4/5 — 機能追加

*2026-01-04*

バッテリー残量を%表記追加してほしいです

### 1/5 — 二台登録できない

*2025-12-28*

1台しか登路出来ない、画面をスワイプしてとか書いてあるけどスワイプ出来ない。⚫️が1つしかないので無理

### 4/5 — スマホとの連携がすぐに切れる？

*2025-11-30*

走る頻度が少ないせいかもしれませんが、スマホとの連携が切れてしまい、再連携を何回もしないといけない。
出先で連携が切れているのに気づくと再連携がなかなかできなくて苦労する。

### 1/5 — オートロック

*2025-11-06*

携帯が近づいてもオートロックが解除にならない。

### 4/5 — ワイヤーロックとAlterLockで安心

*2025-09-18*

ワイヤーロックだけで無く、やはりAlterLockも使うと安心感がある。今は2台のロードバイクで使用してます。2台目のデバイスは、購入直後に不具合が有りましたが、直ぐに対応して頂き今は快調です。後はAppleウォッチに対応して頂けたら、嬉しい限りです。

## Frequently asked questions about AlterLock

### What does the AlterLock app do?

The AlterLock app works with the AlterLock theft prevention device to monitor your vehicle. It provides features like loud alarms, smartphone notifications for movement detection, and GPS tracking to help deter theft and locate your vehicle.

### What are the key features of the AlterLock app?

Key features include a movement-detection alarm that sounds from the device, smartphone notifications when movement is detected, independent communication for notifications and location outside Bluetooth range, and advanced tracking using GPS, Wi-Fi, and cell tower signals.

### How much does the AlterLock app and service cost?

While the app itself may be free to download, using the service requires the purchase of an AlterLock device and a service agreement. Specific details on service contracts and usage fees can be found on the AlterLock website.

### What vehicles can I use AlterLock with?

The AlterLock app and device are designed to monitor various vehicles, including bicycles, motorcycles, and cars. You can register photos, specs, and frame numbers for up to three vehicles and their associated devices.

### Does AlterLock guarantee theft prevention?

No, the service does not guarantee theft prevention. However, it aims to deter thieves through loud alarms and provides tracking capabilities to help recover stolen vehicles.

## Version history (last 5 releases)

### 2.3.18 — 2026-08-20

Minor improvements and fixes have been made.

### 2.3.17 — 2026-06-03

Updated the setup instructions for device setup in certain environments.

### 2.3.16 — 2025-12-15

Minor bug fixes.

### 2.3.15 — 2025-09-25

Made adjustments to support the latest firmware.

### 2.3.14 — 2025-08-20

- Improved location display while connected via Bluetooth
- Added app review feature

## Apps similar to AlterLock

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [mySHOEI](https://appshunter.io/ios/app/myshoei/id1642856257) | — | Free | Utilities |
| [Moto DR2](https://appshunter.io/ios/app/moto-dr2/id6744802660) | — | Free | Utilities |
| [MITSUBA moto DR](https://appshunter.io/ios/app/mitsuba-moto-dr/id1472315855) | 5.0 (1) | Free | Utilities |
| [BikeShop―マイバイクサポート](https://appshunter.io/ios/app/bikeshop/id1451478479) | — | Free | Utilities |
| [SIGEYI](https://appshunter.io/ios/app/sigeyi/id1449815400) | — | Free | Utilities |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*