Privacy Policy

With the following information we give you an overview of the processing of your personal data within the scope of the installation and usage of iFretless Bass, iFretless Brass, iFretless Sax, iFretless Guitar, Drone Tuner, Helix Tuner, and Drum session, hereinafter referred to as our "apps".

Who can I contact with questions about data processing?

Please direct all questions regarding data processing in our apps to

What data do we collect and store?

We do not directly collect or store any data from our users. However, our apps integrate some software development kits from third parties that send us anonymous crash reports and track installations in order to measure the effecacy of our advertisement campaigns. Specifically, we use Crashlytics and the Facebook SDK.


Crashlytics is a framework owned by Google, Inc. that we use to collect a report each time our app crashes on your device. The reports tell us which line of our code the app was running on your device when it crashed. We use this information to improve the stability of our apps. You can read the terms of service and privacy policy for crashlytics at the following website:

Facebook Software Development Kit (SDK)

Facebook SDK is a framework developed by Facebook, Inc., 1601 S. California Ave, Palo Alto, CA 94304, USA. We use the Facebook SDK to track installations of our apps in order to measure the efficacy of our advertisements on Facebook and Instagram. Facebook is certified under the Privacy Shield agreement and offers a guarantee to comply with the European data protection regulations. You can find out more information about the Facebook SDK under iOS at If you would like to opt out of this data processing, you can use the settings and opt out options provided by Facebook under