Your data
Privacy policy
This privacy policy describes how the Drop2 app (“the App”) handles your data. It covers the App itself; the drop2.studio website is addressed separately below.
Microphone usage
The App uses your device’s microphone solely for real-time pitch detection in the trainers and tuner, to check the notes you play. Audio is analyzed on your device in real time and immediately discarded — it is never recorded, saved, or transmitted. (The ear trainer plays sounds for you to identify and does not use the microphone at all.)
Your practice data and iCloud
The App stores your practice history and statistics on your device so it can show your progress and decide what to review next. If you are signed into iCloud, this data is synced across your own devices through Apple’s iCloud (a private database tied to your Apple ID); otherwise it stays only on your device. Either way the data lives in your own iCloud account — the developer operates no servers and has no access to it. iCloud syncing is provided by Apple under Apple’s Privacy Policy. You can export a copy as a JSON file, or erase everything, from Settings › Data.
Subscriptions and purchases
Premium is an auto-renewing subscription sold through the Apple App Store. Purchases are processed by Apple; the developer never receives your name, payment details, or Apple ID. Whether you have an active subscription is checked on your device through the App Store. Apple’s handling of this information is described in Apple’s Privacy Policy.
Settings
Your preferences (such as note naming, reference pitch, and appearance) are stored locally on your device and are not synced or transmitted. They are removed when you delete the App.
No analytics or tracking in the App
The App does not use any analytics services, advertising frameworks, or third-party tracking technologies, and it does not track you across other apps or websites.
No third-party sharing
The developer does not collect personal data and does not sell or share any data with third parties. The only data that leaves your device goes to Apple’s own services — iCloud sync and App Store purchases — on your behalf, under Apple’s policies.
Data retention and deletion
Your practice history is kept until you remove it. You can reset all statistics from Settings › Data (this also clears the data on every device synced via iCloud), and deleting the App removes its local data. To remove the iCloud copy as well, delete the App’s iCloud data from Settings › [your name] › iCloud.
Children’s privacy
The developer does not collect personal information from anyone, including children under the age of 13.
This website
The promises above are about the App. The drop2.studio website uses Cloudflare Web Analytics to give the developer aggregate visit counts. It is a privacy-preserving service: it sets no cookies, does not fingerprint you, and does not follow you across sites. Cloudflare’s handling of this data is described in Cloudflare’s Privacy Policy. The site itself is also served by Cloudflare, the developer’s hosting provider: like any web host it processes visitors’ IP addresses transiently to deliver pages and keep the site safe, and the developer never sees or stores them. Fonts, audio, and images are self-hosted, so beyond Cloudflare no third party is contacted when you read these pages. The App Store buttons carry a small campaign tag — the name of the page you came from — so Apple’s aggregate download statistics can tell the developer which pages lead to downloads. The tag names the page, never you, and it travels only when you tap through to the App Store.
Your rights
For the little personal data that does exist — a support email you send, the transient technical data above — you have the rights the GDPR grants: access, rectification, erasure, restriction, portability, and objection, plus the right to complain to a data-protection authority. The controller is Oliver Duschka (address in the Impressum); the fastest route for any of these is support@drop2.studio.
Changes to this policy
If this privacy policy is updated, the revised version will be posted at this URL with an updated effective date.
Contact
If you have questions about this privacy policy, please contact support@drop2.studio.
Effective date: July 21, 2026 · This app was previously published as “Jazz Guitar”; the App’s data practices are unchanged.