# SP Sensor - Monitor the angle! > No sign-up & free. Simply scan the QR and easily monitor with SP's "rot angle"! Canonical page: [https://chrome-stats.com/d/tunsock.spsensor](https://chrome-stats.com/d/tunsock.spsensor) ## Overview - **ID:** `tunsock.spsensor` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** tunsock - **Category:** TOOLS - **Downloads:** 2 - **Version:** 1.4.2\_01-SEN024 - **Last updated:** 2026-09-04 - **First published:** 2026-03-29 - **Publisher country:** JP - **Size:** 9.35 MB - **Data as of:** 2026-09-15 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=tunsock.spsensor) - **Website:** [https://secure.tunsock.net/index/sensor?auto\_lang=true](https://secure.tunsock.net/index/sensor?auto_lang=true) - **Privacy policy:** [https://secure.tunsock.net/config/privacy\_app](https://secure.tunsock.net/config/privacy_app) ## Description Feature
- "SP Sensor" allows you to easily remotely monitor the status of an object using two Android smartphones, based on the "rotation angle" of the smartphone.
- Simply install "SP Sensor" on both the sensor and monitoring side smartphones, and link the smartphones using a QR code to complete the setup.
- Even if the monitoring side smartphone is connected to your home Wi-Fi, you don't need to open any ports! You can monitor the "rotation angle" of the smartphone even when you're away from home.
- Attach the smartphone with the sensor in the location where you want to monitor the rotation angle, and select "Run in the foreground" for the app.
- The monitoring side app displays the rotation angle status of the sensor side smartphone in real time.
- You can also set a threshold for the rotation angle you want to be alerted about in the sensor side app, which will then send notifications for when that occurs or is restored.
- Rotation angle data between devices is encrypted End-to-End using our proprietary P2P technology, so the contents cannot be seen by us or a third party. Also, communication data is not saved on the Cloud.
- Registration of user information to use the service is not required, and personal information is not acquired with this app.
- There is no charge for using this service.

Terms of use
- To use the service, you need to agree to the terms of service.
- There are advertisements displayed within the app. ## Rankings - #3,050,853 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.CAMERA` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_DATA_SYNC` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.WAKE_LOCK` - `com.android.vending.CHECK_LICENSE` - `com.google.android.gms.permission.AD_ID` - `tunsock.spsensor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [SP Camera - Monitor Your Pets!](https://chrome-stats.com/d/tunsock.spcamera) — 202 users - [Remote Sensor](https://chrome-stats.com/d/com.humanfirstech.remotesensor) — 1,087 users - [Protractor Angle Meter](https://chrome-stats.com/d/com.tooltoolnam.protractor_angle) — 6,902 users - [Sensor](https://chrome-stats.com/d/com.graytsar.sensor) — 15,298 users, 4.57 / 5 - [Sensor Monitor & Compass](https://chrome-stats.com/d/com.shreyash.sensorapp) — 92 users - [Protractor: Angle Measure Tool](https://chrome-stats.com/d/com.play3rs.protractor) — 188 users - [Android Sensors](https://chrome-stats.com/d/com.akshayAshokCode.androidsensors) — 3,611 users - [Advanced Sensor Monitor](https://chrome-stats.com/d/bica.sensor.tracker) — 21,381 users, 3.40 / 5 - [Gyroscope: Level & Rotation](https://chrome-stats.com/d/com.simonj.gyroscope) — 3,784 users - [Acceleration & Tilt Sensor](https://chrome-stats.com/d/com.gymtec.sensor) — 520 users - [Smartphone Protractor](https://chrome-stats.com/d/com.appfactorykim.cycleruler) — 8,688 users - [Angle Meter](https://chrome-stats.com/d/com.anglemetercalculator) — 51 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/tunsock.spsensor)