Skip to content

Sensorkraken

F-Droid

Open source

Sensorkraken is an Android app to record raw sensor data for later processing.

Version
1.1.0
Size
6 MB
Updated
Apr 22, 2024
Get from Download APK (v1.1.0)
Signing certificate on record

About this app

Sensorkraken collects raw sensor related data and provides them as structured data for later analysis on another machine. All available system sensors and some custom defined sources are used to record and export data for further analysis.

The interval and sensors to be used can be individually defined and thus enables a highly customizable data collection application. Sensorkraken only aims at collecting data and not analyzing/visualizing.

For more information see the webpage at https://sensorkraken.org

Licensed under AGPL-3.0-only.

OfficialSignature VerifiedOpen Source

What's New in v1.1.0

Imported from the F-Droid repository index.

  • Fixes crash on sharing large files
  • * Recordings are now split into 50MB chunks when zipped

Version history

v1.1.0Latest
Signature continuous

Apr 22, 2024 · 6 MB · Android API 1933 · code 110

Imported from the F-Droid repository index.

  • Fixes crash on sharing large files
  • * Recordings are now split into 50MB chunks when zipped
ACCESS_COARSE_LOCATIONACCESS_FINE_LOCATIONACCESS_BACKGROUND_LOCATIONFOREGROUND_SERVICEACTIVITY_RECOGNITIONCHANGE_WIFI_STATEACCESS_WIFI_STATEHIGH_SAMPLING_RATE_SENSORSBLUETOOTHBLUETOOTH_ADMINPOST_NOTIFICATIONSRECORD_AUDIOBLUETOOTH_SCANBLUETOOTH_CONNECTBLUETOOTH_ADVERTISEACCESS_NETWORK_STATEWAKE_LOCKRECEIVE_BOOT_COMPLETEDorg.sensorkraken.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

SHA-256 ac5ac5f91c42f62207f2e80194596f712027f08d3a11c3ea30ed83f9867a1937

v1.0.1
Signature continuous

Sep 25, 2023 · 5.4 MB · Android API 1631 · code 101

Imported from the F-Droid repository index.

  • Fixes system crash on large files
  • * Metadata file additionally created at recording startup
  • * Refactor sensorreadout.json to only append to file
  • * Added "spellcheck" button to manually run file conversion in case the app crahses during recording
ACCESS_COARSE_LOCATIONACCESS_FINE_LOCATIONACCESS_BACKGROUND_LOCATIONFOREGROUND_SERVICEACTIVITY_RECOGNITIONCHANGE_WIFI_STATEACCESS_WIFI_STATEHIGH_SAMPLING_RATE_SENSORSBLUETOOTHBLUETOOTH_ADMINPOST_NOTIFICATIONSRECORD_AUDIOBLUETOOTH_SCANBLUETOOTH_CONNECTBLUETOOTH_ADVERTISEACCESS_NETWORK_STATEWAKE_LOCKRECEIVE_BOOT_COMPLETED

SHA-256 9be3e1ba3498dc2b03fa29c364f6dee5372418a707b2691e966a06527b39f47c

v1.0
Signature continuous

Nov 7, 2022 · 5.4 MB · Android API 1631 · code 1

Imported from the F-Droid repository index.

ACCESS_COARSE_LOCATIONACCESS_FINE_LOCATIONACCESS_BACKGROUND_LOCATIONFOREGROUND_SERVICEACTIVITY_RECOGNITIONCHANGE_WIFI_STATEACCESS_WIFI_STATEHIGH_SAMPLING_RATE_SENSORSBLUETOOTHBLUETOOTH_ADMINPOST_NOTIFICATIONSRECORD_AUDIOBLUETOOTH_SCANBLUETOOTH_CONNECTBLUETOOTH_ADVERTISEACCESS_NETWORK_STATEWAKE_LOCKRECEIVE_BOOT_COMPLETED

SHA-256 4177dd9cee21d154537ffefc1601f1b374e4f4ea3e9f8bc2dd4c53a24ce557fd

Will it run on your device?

CompatibilityLikely to run

73%

  • Runs on a broad range of modern Android versions.
  • ABI coverage is focused on newer 64-bit devices.
What changed in this release
Size delta
+0.6 MB
Added permissions
org.sensorkraken.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Removed permissions
None

Installation Guide

1

Open Settings on your Android device

2

Go to Security → Unknown sources (or Install unknown apps)

3

Enable "Allow from this source" for your browser or file manager

4

Open the downloaded APK file from your Downloads folder

5

Tap "Install" and wait for installation to complete

6

Launch the app from your home screen

Make sure to re-enable Unknown Sources restrictions after installation for security.

How to install this safely

How to verify the file you downloaded

Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.

What the signing certificate proves

Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.sensorkraken is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.

How to roll back to an earlier version

If the current release misbehaves, 1.0.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Sensorkraken first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.

Why we list sources instead of hosting everything

The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Sensorkraken, and a listing is removed when the evidence for it stops holding up.

Get Sensorkraken

Every source we list for org.sensorkraken is legality-reviewed. Pirated or cracked builds are never offered.

Other sources

F-Droid listing

official

F-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.

Source code

verified publisher

The upstream repository this build is compiled from.

We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.

App Information

Developer
F-Droid
Category
Education
Android
API 19+
Architectures
Version
1.1.0 (code 110)
Size
6 MB
Updated
Apr 22, 2024
Package name
org.sensorkraken

Security Verification

File integrity
SHA-256 recorded
Signing certificate
Fingerprint on record
Official source
Download APK (v1.1.0)

We record provenance; we do not run malware scans. Verify the hash yourself before installing.

SHA-256 Hash

ac5ac5f91c42f62207f2e80194596f712027f08d3a11c3ea30ed83f9867a1937

Signing certificate

fc287b515fbe358f591c110acaf3b5e4021609f913e94edb351a1dc7c60e36a0

Permissions Required

What each permission lets Sensorkraken do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.

ACCESS_COARSE_LOCATIONRead your approximate location.
ACCESS_FINE_LOCATIONRead your precise location.
ACCESS_BACKGROUND_LOCATIONRead your location even when the app is closed.
FOREGROUND_SERVICEKeep running in the background with a visible notification.
ACTIVITY_RECOGNITION
CHANGE_WIFI_STATETurn Wi-Fi on or off and connect to networks.
ACCESS_WIFI_STATESee Wi-Fi status and the network it is connected to.
HIGH_SAMPLING_RATE_SENSORS
BLUETOOTHConnect to paired Bluetooth devices.
BLUETOOTH_ADMINDiscover and pair Bluetooth devices.
POST_NOTIFICATIONSShow notifications.
RECORD_AUDIORecord audio with the microphone.
BLUETOOTH_SCANScan for nearby Bluetooth devices.
BLUETOOTH_CONNECTConnect to Bluetooth devices.
BLUETOOTH_ADVERTISE
ACCESS_NETWORK_STATECheck whether the device is online and on what kind of connection.
WAKE_LOCKKeep the device awake, e.g. to finish a download or play media.
RECEIVE_BOOT_COMPLETEDStart automatically when the device finishes booting.
org.sensorkraken.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Previous Versions

Signature verified

The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.

More Education apps

More from F-Droid

Report a problem with this listing

A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.

Report a problem