圖標

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

雖然在下方可選擇下載 APK 檔案,但要留意這樣的安裝方式將不會收到更新通知,是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。

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  • 版本 1.0.0 (1) 建議 於 2026 年 6 月 22 日新增

    此版本需要 Android 8.0 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 查看網路連線
      允許應用程式查看網路連線相關資訊,像是有哪些網路,以及有沒有連上。
    • 查看 Wi-Fi 連線
      允許應用程式查看 Wi-Fi 網路相關資訊,例如是否已啟用 Wi-Fi,以及所連上 Wi-Fi 裝置的名稱。
    • 變更網路連線
      允許應用程式變更網路連線狀態。
    • 執行前景服務
      允許應用程式使用前景服務。
    • 搭配「dataSync」類型執行前景服務
      允許應用程式搭配「dataSync」類型使用前景服務
    • 擁有完整的網路存取權
      允許應用程式建立網路通訊端及使用自訂網路通訊協定。瀏覽器和其他應用程式會提供將資料傳輸到網際網路的方法,因此不需要這項權限也能將資料傳輸到網際網路。
    • 顯示通知
      允許應用程式顯示通知
    • 讀取手機狀態和識別碼
      允許應用程式使用裝置的電話功能。這項權限可讓應用程式判讀手機號碼和裝置 ID、是否正在通話中,以及所撥打的對方號碼。
    • 啟動時執行
      允許應用程式在系統完成開機程序後立刻自行啟動。這會增加手機的開機時間,而且會因為系統一直執行該應用程式導致手機的整體運作速度變慢。
    • 要求忽略電池效能最佳化
      允許應用程式要求權限,以便忽略針對該應用程式的電池效能最佳化設定。
    • 防止手機休眠
      允許應用程式防止手機進入休眠狀態。
    • com.signalsense.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 2.2 MiB PGP 簽章 | 建置紀錄