Apps by Chiel Zwinkels / Arithmophone do not collect, store, or transmit any personal data. The apps run entirely on your device and do not connect to the internet. No analytics, no tracking, no accounts. Your settings are stored locally on your device and are not accessible to anyone else. No data is shared with third parties.
This policy applies to the ‘TernaryClock’ and ‘Pentatone’ iOS apps and to the ‘Pentatone’ Android app. If you have any questions, you can reach me at post@chielzwinkels.net.
Last updated: June 2026