We develop software solutions for the piano industry, including the Piano Age Calculator, Online Piano Atlas, and the Piano Service App. We also operate the Piano Industry Portal, which offers a wide range of valuable resources and services for piano professionals. In addition, we provide custom software development tailored to the specific needs of businesses and organizations within the piano industry.

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Foire aux questions

Assurez-vous d'abord d'avoir déjà acheté l'app avec votre compte actuel.

iOS
  1. Go to Settings → tap [your name] → iTunes & App Store.
  2. Tap your Apple ID at the top of the screen, then tap View Apple ID. You may need to sign in with your Apple ID.
  3. Scroll to Subscriptions, then tap it.
  4. Si vous avez un abonnement Online Piano Atlas actif, vous verrez l'abonnement OPA (annuel ou mensuel) ainsi que la prochaine date de facturation — la date jusqu'à laquelle votre abonnement est actif et à laquelle il sera renouvelé.
Important note for iOS users: We also offer the Online Piano Atlas web version — the Piano Age Calculator — which works just like a native app on every device (phone, laptop, computer). The database is the same, so you no longer need to worry about switching phones or wanting to use the app on a desktop. Register here:
www.pianoagecalculator.com
Android
  1. Open the Google Play Store on your Android phone or tablet.
  2. Make sure you are signed in to the correct Google Account.
  3. Tap Menu → Subscriptions.
  4. Select the OPA subscription and check the next billing date — the date until your subscription is active and on which it will renew.
Important note for Android users: When your current subscription expires, please do not start a new subscription in the Google Play Store. We offer a better option for Android users — please read this notice:
pianoagecalculator.com/for-android-users

First, please make sure you have already purchased the app with your current account and that your subscription is currently active.

iOS
  1. Open the app and choose any piano brand.
  2. Tap OK in the pop-up window asking for a subscription.
  3. Scroll down the packages page and tap RESTORE PURCHASE. Wait until you see the confirmation, then close and reopen the app.
  4. If the issue still persists, delete the app from your phone and reinstall it from the App Store.
  5. Open the app again and repeat steps 1–3.
  6. If the issue still persists, please contact us.
Important note for iOS users: We also offer the Online Piano Atlas web version — the Piano Age Calculator — which works just like a native app on every device. The database is the same, so you no longer need to worry about switching phones. Register here:
www.pianoagecalculator.com
Android
Important note for Android users: When your current subscription expires, please do not start a new subscription in the Google Play Store. We offer a better option for Android users — please read this notice:
pianoagecalculator.com/for-android-users

First, please make sure you have already purchased the app with your current account and that your subscription is currently active.

iOS
  1. Open the app and choose any piano brand.
  2. Tap OK in the pop-up window asking for a subscription.
  3. Scroll down the packages page and tap RESTORE PURCHASE. Wait until you see the confirmation, then close and reopen the app.
Important note for iOS users: We also offer the Online Piano Atlas web version — the Piano Age Calculator — which works just like a native app on every device. The database is the same, so switching to the web version means no more worries about new phones. Register here:
www.pianoagecalculator.com
Android
Important note for Android users: When your current subscription expires, please do not start a new subscription in the Google Play Store. We offer a better option for Android users — please read this notice:
pianoagecalculator.com/for-android-users

iOS
  1. Go to Settings → tap [your name] → iTunes & App Store.
  2. Tap your Apple ID at the top of the screen, then tap View Apple ID. You may need to sign in with your Apple ID.
  3. Scroll to Subscriptions, then tap it.
  4. Tap the OPA subscription and choose Cancel.
  5. Lorsque vous annulez un abonnement, vous pouvez continuer à l'utiliser pour la période déjà payée.
Android
  1. Open the Google Play Store on your Android phone or tablet.
  2. Make sure you are signed in to the correct Google Account.
  3. Tap Menu → Subscriptions.
  4. Select the OPA subscription and tap Cancel subscription.
  5. Lorsque vous annulez un abonnement, vous pouvez continuer à l'utiliser pour la période déjà payée.

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