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Messwerk shows and plots values from the different sensors of your phone.

It currently supports:

  • Accelerometer
  • Gyroscope
  • Rotation
  • Magnetometer
  • Light sensor
  • Proximity sensor
  • Position and signal strength of GNSS satellites
  • User coordinates in various formats and GNSS precision info

The data from all sensors can be logged to CSV files. Please note that this can drain your phone’s battery, as the system is prevented from entering deep sleep while logging is active.

The source code is available on Github. If you notice any bugs, please report them in the Github issue tracker.

Application versions: 
File harbour-messwerk-0.3-1.armv7hl.rpm52.17 KB02/07/2017 - 15:20
File harbour-messwerk-0.3-1.i486.rpm58.97 KB02/07/2017 - 15:20
File messwerk-0.2-1.armv7hl.rpm46.08 KB20/09/2014 - 21:02
File messwerk-0.1-1.armv7hl.rpm36.75 KB10/09/2014 - 00:40


  • Added a page showing coordinates and GNSS accuracy
  • Added Polish translation by mp107
  • Added German translation
  • Some preparation for a release to Jolla Harbour (renamed package and contained files)


  • Implemented data logging for all sensors
  • Display blanking can be prevented on sensor logging


  • First release


Historyscholar's picture

Good app

iheilala's picture

Would it be possible to add mic(s) to sensor list?
Also possibility to select only one sensor e.g. acc(x) and show it and FFT of it.

nobodyinperson's picture

That would be awesome!

hetifi's picture

Great app. In satelite view, Glonass or GPS tracking or both ?


cfr34k's picture

It should show both, as sometimes there are more satellites visible than GPS has in total (about 30). My guess is that the ones with IDs below 40 are GPS and the ones above are Glonass.

In the QtPositioning API, a property for the satellite system is provided, but it looks like this is currently unused at least on the Jolla phone (zeros are returned for all satellites, regardless of their IDs). So I can't really display this information at the moment.

oku's picture

Great app indeed, but data logging is a must before it's of any use. Also an option to prevent the screen from turning off would be nice.

iheilala's picture

Great app. It would be even better if you could save sensor data to text file.

cfr34k's picture

Thanks for the comment. Data logging is actually the one feature that I miss myself :-) . So I will probably implement it for the first update.