Amber is a nostr event signer for Android. It allows users to keep their nsec segregated in a single, dedicated app. The goal of Amber is to have your smartphone act as a NIP-46 signing device without any need for servers or additional hardware. "Private keys should be exposed to as few systems as possible as each system adds to the attack surface," as the rationale of said NIP states. In addition to native apps, Amber aims to support all current nostr web applications without requiring any extensions or web servers.
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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
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arm64-v8a
armeabi
armeabi-v7a
mips
mips64
x86
x86_64
This version requires Android 8.0 or newer.
It is built by F-Droid and guaranteed to correspond to this source tarball.
Permissions
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view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
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take pictures and videos
This app can take pictures and record videos using the camera while the app is in use.
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change network connectivity
Allows the app to change the state of network connectivity.
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run foreground service
Allows the app to make use of foreground services.
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run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
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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.
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show notifications
Allows the app to show notifications
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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.
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use biometric hardware
Allows the app to use biometric hardware for authentication
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use fingerprint hardware
Allows the app to use fingerprint hardware for authentication
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prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
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com.greenart7c3.nostrsigner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
15 MiB
PGP Signature
|
Build Log
-
arm64-v8a
armeabi
armeabi-v7a
mips
mips64
x86
x86_64
This version requires Android 8.0 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.
-
take pictures and videos
This app can take pictures and record videos using the camera while the app is in use.
-
change network connectivity
Allows the app to change the state of network connectivity.
-
run foreground service
Allows the app to make use of foreground services.
-
run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
-
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.
-
use biometric hardware
Allows the app to use biometric hardware for authentication
-
use fingerprint hardware
Allows the app to use fingerprint hardware for authentication
-
prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
-
com.greenart7c3.nostrsigner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
15 MiB
PGP Signature
|
Build Log
-
arm64-v8a
armeabi
armeabi-v7a
mips
mips64
x86
x86_64
This version requires Android 8.0 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.
-
take pictures and videos
This app can take pictures and record videos using the camera while the app is in use.
-
change network connectivity
Allows the app to change the state of network connectivity.
-
run foreground service
Allows the app to make use of foreground services.
-
run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
-
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.
-
use biometric hardware
Allows the app to use biometric hardware for authentication
-
use fingerprint hardware
Allows the app to use fingerprint hardware for authentication
-
prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
-
com.greenart7c3.nostrsigner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
15 MiB
PGP Signature
|
Build Log
