Online Piano Atlas is the world's first and only online piano atlas application. It provides users with comprehensive information about their piano, including its age, original factory location and date, and the manufacturer. The application also allows users to access the latest news and job opportunities in the piano industry.

One of the significant advantages of Online Piano Atlas is that all the data is stored on their online server, which guarantees accurate and up-to-date information. The age calculator feature is available for a small financial contribution, which will help with further developments and updates. The subscription is offered for $0.99 per month and $4.99 per yearUSD/month). The application is easy to use, and users can cancel their subscriptions anytime with no cancellation fees.

However, it is essential to note that the application requires a subscription to access the age calculator feature. Also, the terms and conditions and privacy policy of the application must be read carefully before subscribing.