I paid for it - no sound?
Response from developer
Hi, please update to the latest version of the app. Issue has been resolved. Thank you for the feedback. Also check if device is not on silent mode.

This app generates readable, note-based exercises for practicing scales and chords. It's ideal for musicians of all levels looking for a focused and efficient way to improve their technique and theory knowledge without manual preparation.
1.9.6
August 11, 2025
added start down feature. added reverse pattern feature.
Hi, please update to the latest version of the app. Issue has been resolved. Thank you for the feedback. Also check if device is not on silent mode.
OnKey is designed for flexibility and can be used for all instruments. The exercises generated are note-based, making them applicable regardless of the specific instrument you play.
OnKey generates personalized, readable note-based exercises for scales and chords, eliminating the need for manual preparation. This allows for focused warm-ups, technique drills, and theory work.
You can select your scale or chord type, transpose to any key, set your desired range and clef, and choose from various patterns. You can also add note names and time signatures to your exercises.
Yes, OnKey is perfect for beginners looking to establish a solid foundation in scales and chords. It simplifies the practice process, allowing new musicians to focus on technique and theory.
The latest version of OnKey is 1.9.6, and it was last updated on August 11, 2025. This indicates a commitment to ongoing development and improvements.
OnKey is a paid application priced at $4.99. This one-time purchase grants you access to all its features for practicing scales and chords.
No, OnKey does not contain advertisements. As a paid app, it offers an uninterrupted practice experience without any ad interruptions.
OnKey is available for iPhone, iPad, and iPod devices. Its design is optimized for these Apple platforms.