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Sailfish OS app to use your device as a ruler.

You need to measure a length, but you don't have a ruler with you? Then use this app to get the job done.


The app uses the pixel density per millimeter reported by the device to calibrate the scale. It is possible to influence this with a scaling factor inside the settings.

However, the overall accuray is determined by the pixel size. The larger a pixel, the worse the accuracy. The pixel density is a double value that is rounded for display.


Available translations:

  • English
  • German
  • Hungarian (Szabó G.)
  • Polish (PiotrD aka likot180)
  • French (lambda2501)
  • Russian (dimoon91)

If you missing your native language you are welcome to support this project with your translation.



Source code is available on Github:



If you like my work you can buy me a beer.


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Application versions: 
File harbour-zollstock-0.1.1-1.noarch.rpm51.54 KB10/06/2022 - 19:55
File harbour-zollstock-0.1.2-1.noarch.rpm52.67 KB12/06/2022 - 14:01
File harbour-zollstock-0.1.3-1.noarch.rpm53.76 KB13/06/2022 - 21:51
File harbour-zollstock-0.1.4-1.noarch.rpm54.82 KB25/06/2022 - 09:33
File harbour-zollstock-0.2.0-1.noarch.rpm56.66 KB17/07/2022 - 11:40
File harbour-zollstock-0.2.1-1.noarch.rpm57.07 KB30/07/2022 - 09:43
File harbour-zollstock-0.2.2-1.noarch.rpm58.35 KB19/08/2022 - 08:37
* Fri Aug 19 2022 Samuel Kron <blacksheep@nubecula.org> 0.2.2-1
- Add Russian translation by dimoon91

* Sat Jul 30 2022 Samuel Kron <blacksheep@nubecula.org> 0.2.1-1
- Updated translations

* Sun Jul 17 2022 Samuel Kron <blacksheep@nubecula.org> 0.2.0-1
- Add Swedish translation by Tuomas F Nyqvist (lumen)
- Add option to change the scaling factor
- Improvements

* Sat Jun 25 2022 Samuel Kron <blacksheep@nubecula.org> 0.1.4-1
- Add French translation by lambda2501

* Mon Jun 13 2022 Samuel Kron <blacksheep@nubecula.org> 0.1.3-1
- Add Polish translation by PitorD (likot180)

* Sun Jun 12 2022 Samuel Kron <blacksheep@nubecula.org> 0.1.2-1
- Add Hungarian translation by Szabó G. (1ZGp)

* Fri Jun 10 2022 Samuel Kron <blacksheep@nubecula.org> 0.1.1-1
- Initial release