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SignalSense – Network Switch Alerts

Know the instant your network switches between 5G, 4G, 3G, or 2G
新版本 1.0.0
Initial release of SignalSense.

• Real-time 5G / 4G / 3G / 2G network monitoring
• Instant notifications on network transitions
• Live speed and ping display
• Full switch history log
• Customizable alert triggers
• Auto-start / auto-stop with mobile data
• Boot auto-start support
• Dual SIM slot selector
• No ads, no tracking, fully open source
Frustrated by silent drops from 5G to 4G? SignalSense alerts you the instant your network changes – giving you the power to pause downloads, save your data, and avoid unexpected charges.

SignalSense continuously monitors your mobile network and notifies you whenever your connection switches between 5G, 4G, 3G, or 2G – helping you identify network issues before they affect calls, streaming, gaming, or downloads.

FEATURES

- Instant Alerts
Get notified the moment your network drops from 5G to 4G, or 4G to 3G. Stop wondering why your video buffered – know exactly why.
- 5G SA and NSA Detection
Accurately distinguishes between 5G Standalone (SA) and Non-Standalone (NSA) connections – not just "5G".
- Custom Ringtones & Vibration Control
Choose your own custom ringtone and control vibration settings for network alerts.
- Live Speed and Ping
See real-time download and upload speeds in the persistent notification, and live ping on the home screen.
- Call-Aware Alerts
Alerts are automatically held during active phone calls and fired after the call ends. No interruptions at the wrong moment.
- Anti-Spam Debouncing
Rapid signal fluctuations are detected and grouped into a single "unstable signal" alert instead of spamming your notification shade.
- Switch History Log
Every network change is logged with a timestamp and network speed. Review your full connection history at any time.
- Fully Customizable Alerts
Choose exactly which transitions alert you:
- Network Upgrade
- Network Downgrade
- Mobile Data Lost / Restored
- Any Network Change
- Smart Auto-Start / Auto-Stop
Monitoring can automatically start when mobile data turns on and stop when it turns off – completely hands-free.
- Boot Auto-Start
Optionally start monitoring automatically every time your phone boots.
- Dual SIM Support
Choose which SIM slot to monitor or use Auto mode to always follow your active data SIM.
Switches instantly when you change your default data SIM.
- Battery-Friendly
Uses a lightweight foreground service with minimal battery impact. Built for all-day use.

No ads. No tracking. No data collected. 100% private and open source.

版本

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  • 版本 1.0.0 (1) 推荐 更新于 2026-06-22

    该版本需要 Android 8.0 及以上版本。

    此包由原始开发者构建并签名,并保证对应于此源代码 tarball

    权限
    • 查看网络连接
      允许此应用查看网络连接的相关信息,例如哪些网络存在并处于连接状态。
    • 查看 Wi-Fi 连接
      允许此应用查看 Wi-Fi 网络的相关信息,如是否开启 Wi-Fi、已连接的 Wi-Fi 设备的名称等。
    • 更改网络连接性
      允许此应用更改网络连接状态。
    • 运行前台服务
      允许此应用使用前台服务。
    • 运行“dataSync”类型的前台服务
      允许该应用使用“dataSync”类型的前台服务
    • 拥有完全的网络访问权限
      允许此应用创建网络套接字和使用自定义网络协议。浏览器和其他应用提供了将数据发送到互联网的方法,因此不需要此权限将数据发送到互联网。
    • 显示通知
      允许该应用显示通知
    • 读取手机状态和身份
      允许此应用访问设备的电话功能。此权限可让应用确定本机号码和设备 ID、是否正处于通话状态以及拨打的号码。
    • 开机启动
      允许此应用在系统完成引导后立即启动。这样可能会延长开机时间,并因始终运行而降低手机总体运行速度。
    • 请求忽略电池优化
      允许此应用请求忽略针对自身的电池优化的权限。
    • 防止手机休眠
      允许此应用阻止手机进入休眠状态。
    • com.signalsense.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下载 APK 2.2 MiB PGP 签名 | 构建日志