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Mempal

A Bitcoin mempool monitoring and notification app for Android.
New in version 1.5.3
- Added swipe-down feature to refresh dashboard.
- Added custom time option for widget auto-update frequency.
- Fixed widget refresh bug when Android battery/data saver mode is enabled.
- Various optimization and bug fixes.
Mempal is a Bitcoin network monitoring app that allows users to effortlessly track key network metrics, including block height, fee rates, hashrate, and mempool size & depth. Mempal is an essential tool for users who want to optimize their transactions and track fee rates.


Key Features


Detailed Mempool Insights: Mempal provides in-depth information about the current state of the Bitcoin network, including current block height, hashrate, mempool size, fee rates, and fee distribution. This allows users to gauge network congestion and make informed decisions regarding transaction fees.


Real-Time Notifications: Users can tailor their notification settings to receive alerts when transaction fees drop below a specified threshold, when a specific TXID is confirmed, or when new blocks are mined.


Custom Servers: Connect Mempal to a self-hosted mempool server so you don't have to rely on trusted third parties to obtain information about the Bitcoin network.


Tor Integration: Enable Tor to preserve your privacy and connect to .onion mempool servers.


Widgets: Receive quick and up-to-date information about fee rates, block sizes, and mempool sizes.

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.5.3 (15) suggested Added on May 21, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 7.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.example.mempal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 28 MiB PGP Signature | Build Log

  • Version 1.5.2 (14) - Added on Feb 16, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 7.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.example.mempal.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 28 MiB PGP Signature | Build Log