Privacy Policy

Ludwig is published by Mastech Consulting Pty Ltd (ABN 76 656 286 056), a company registered in Australia. You can contact us at hello@ludwigmusic.app.

In this policy, “we” and “us” mean Mastech Consulting Pty Ltd.

Ludwig has no accounts and no sign-up. Your repertoire, practice sessions, notes and recordings stay on your device unless you turn on cloud backup, in which case they are copied to your own cloud storage and we never receive them. There is no advertising, no usage analytics and no tracking.

One thing leaves your device, and it contains none of your practice data: your purchase, if you buy Premium. Ludwig has no crash reporting and no analytics, so nothing is sent when the app fails, and nothing is sent as you use it. Purchases are described below.

Separately from the app: if you join the launch waitlist on this website, we keep your email address for that one announcement. That is described under “The launch waitlist” below.

All information you enter in Ludwig is stored locally on your device, or backed up to your own cloud storage if you enable that. It is never uploaded to us or to anyone else, unless you choose to send session notes to a teacher or another recipient. This includes:

• ·Your repertoire, pieces, and their status and history
• ·Practice sessions, timings, goals, streaks, and statistics
• ·Notes and session reflections you write
• ·Audio recordings you choose to make during practice
• ·Your settings, such as instruments, reminders, and preferences

None of this is sent to us. We operate no servers that receive it and we cannot see any of it. The only information that ever leaves your device is described under “Purchases” below, and none of it includes your practice data.

Ludwig requests only the permissions it needs to function, and uses them solely on your device:

• ·Microphone. Used only when you record a practice take. Recordings are saved locally and are never uploaded or shared by the app.
• ·Notifications. Used only to show the local practice reminders you enable. These are generated on your device; no reminder data leaves it.
• ·Camera. Used if you choose to scan your sheet music into the app.

Ludwig does not request access to your location, contacts, photos, or any account.

If you turn on backup, Ludwig writes a copy of your data to your iCloud Drive on iPhone and iPad, or on Android to a folder you pick yourself, which can be a folder in Google Drive. That destination is yours, governed by your agreement with whoever provides it. We do not select it, receive it, or have any access to it. You can turn backup off at any time.

Ludwig lets you export your data as a file and create backups, so you can keep your information safe or move it yourself. When you export or back up, the file is created on your device or in your own cloud storage and goes wherever you choose to send or save it. That action is entirely under your control, and the data still never passes through us.

Ludwig contains no usage analytics, no advertising and no advertising identifiers. We do not build a profile of you, and we do not sell, rent or share your information.

Ludwig also has no crash reporting and no error reporting. If the app fails, nothing about the failure is sent anywhere, and we do not learn that it happened. No analytics, attribution or diagnostic service is built into the app.

If you buy Premium, the purchase is processed by Apple or Google, and we use RevenueCat to verify and manage it. RevenueCat receives an anonymous identifier that it generates itself, the product purchased, the transaction date, your country, and basic device and app version information. It does not receive your name, your email address, your payment details or any of your practice data.

If you never buy Premium, nothing is sent.

RevenueCat is the only third party that receives anything from Ludwig.

RevenueCat’s privacy policy: https://www.revenuecat.com/privacy

Ludwig includes a catalogue of composers and works to help you add repertoire. This reference information is bundled with the app; browsing it does not send any of your data anywhere. Composer data is provided by Open Opus (https://openopus.org/).

Ludwig is not released yet. If you enter your email address on this website to be notified when it launches, we store that address and the time you signed up on this website’s server, and it is emailed to us. It is not given to any third party, added to any marketing list, or used for anything except telling you that Ludwig has launched.

After we send the launch announcement, the list is deleted. If you want your address removed before then, email us at hello@ludwigmusic.app and we will delete it.

Because your data is stored only on your device, or backed up to your own cloud storage, you are always in control of it. You can delete your data from within the app, and uninstalling Ludwig removes the data stored on your device. We hold no copy to delete, because we never received one.

Purchase records are held by Apple, Google and RevenueCat under their own retention policies. They are not linked to your identity, and they contain none of your practice data.

Ludwig contains no advertising and no external content directed at children, and does not ask anyone for personal information. It is a practice tool suitable for musicians of any age.

The only data that leaves the device is described under “Purchases” above. It does not identify you by name, and it includes nothing you have entered into the app.

Apart from a launch-waitlist email address you may have given us, which we will delete on request, we hold no personal information about you — so there is generally nothing for us to give you access to, correct, or delete. If you believe we hold information about you, or you have a question or a complaint about how Ludwig handles your privacy, contact us at the address below and we will respond within a reasonable time.

If you are in Australia and are not satisfied with our response, you can contact the Office of the Australian Information Commissioner at oaic.gov.au.

If this policy changes, for example if a future version of the app introduces a new feature, we will update this page and revise the date above. If a change ever involves collecting data, we will make that clear before it takes effect.

Mastech Consulting Pty Ltd (ABN 76 656 286 056) hello@ludwigmusic.app