Improve listening skills by identifying frequency changes in built-in sounds. Guess affected frequencies after random filter settings. Track progress with a running score. Designed for students and audio professionals.
Create and customize artwork with various brushes and tools. Save paintings to a personal gallery. Share completed artwork via email or social media. Add stickers, text, and frames to designs. Display favorite images on home screen widgets.
Explore augmented reality content by scanning album art, stickers, logos, and merchandise. View interactive elements and animations. Share discoveries directly from the .
![One Banknote [AR] app icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/03/1f/ce/031fce41-8bdb-5f81-4fd2-065898adf1da/AppIcon-1x_U007emarketing-0-7-0-85-220-0.png/512x512bb.jpg)
