Privacy Policy

01Controller and contact

SilkIdea s.r.o., company number 07990073, VAT ID CZ07990073, registered office: Kosova 1242/1c, Suchdol, 165 00 Praha 6, Czech Republic. Registered in the Commercial Register maintained by the Municipal Court in Prague, Section C, File 311152. Contact: info@silkidea.com; telephone +420 724 672 400.

SilkIdea is responsible for the processing described here. Send privacy questions and requests to privacy@silkidea.com or our registered office.

02Microphone and music analysis

After you grant permission, the app analyses sound using on-device signal processing and a model bundled with the app. Audio used for tuning and chord recognition is not sent to SilkIdea or an AI provider. Temporary audio buffers and recognised-chord history serve the current session; we do not create a server recording archive. You can change microphone access in system settings at any time; live analysis requires it.

03Settings, trial mode and purchases

The device stores settings such as reference frequency, tuning, selected mode, onboarding, launch counts and purchase status. These support preferences, offer display and feature access. The first-installation date is also saved in the system Keychain and private iCloud key-value storage to preserve trial progress on restoration. If iCloud is available, this small value may sync through Apple; audio and chord history are not synchronised by that mechanism.

StoreKit communicates with the App Store for purchases and entitlement verification. The app keeps information such as product identifier, purchase status and expiry date. The store processes the payment card; SilkIdea does not receive it. These operations provide purchased features; performance of the contract is the legal basis for data processed for that purpose. Apple has its own policy for its services: https://www.apple.com/legal/privacy/.

04Retention and removal

Local preferences and purchase state remain in app storage until changed or the relevant data is removed. Uninstalling may not remove the first-installation date from Keychain or iCloud. Manage iCloud settings and Apple account data with Apple; we can assist with requests concerning app records at privacy@silkidea.com. SilkIdea has no direct access to your private iCloud. Apple retains purchase records under its own duties and rules.

PROtune has no user account on a SilkIdea server. This version integrates no advertising network or dedicated analytics SDK. You can open our website or Apple pages from the app; their website policies then apply. Apple system services may process data outside your country according to their settings and policies. The app does not use music analysis to make decisions about people with legal or similarly significant effects.

05Support and legal claims

When you contact us, we process your address, message and information you attach to reply, perform the contract or handle a complaint. For general enquiries our legitimate interest is communicating with users. Send only necessary information. Our mail is hosted directly by IceWarp Cloud on its infrastructure and handled by people authorised by SilkIdea. IceWarp processes mail content to provide the service under its processing agreement: https://myicewarp.com/others/dpa.

We retain ordinary support correspondence while handling it and for no more than 12 months after the enquiry is closed. Necessary evidence of a specific legal claim may be kept separately until the applicable limitation period expires or the dispute is finally resolved. A document subject to statutory accounting or tax retention is kept for that period; this is not a reason to keep all correspondence.

IceWarp may use subprocessors. Its DPA requires appropriate safeguards for transfers outside the EEA, such as an adequacy decision or standard contractual clauses. Contact privacy@silkidea.com for recipient information and a copy of applicable safeguards. Our seven-day Hetzner server-backup cycle is not the retention period for the inbox or IceWarp backups.

06Your rights

You may request confirmation of processing, access and a copy, correction, deletion, restriction and portability to the extent provided by applicable law. You may object to processing based on legitimate interests. You can withdraw consent for future processing without affecting the lawfulness of earlier processing.

Write to privacy@silkidea.com. We verify only information reasonably needed to handle the request; do not send passwords or secret keys. Requests are normally free. Under the GDPR we generally respond within one month and explain any permitted extension, its reason or any refusal. We do not penalise you for exercising your rights. A particular feature may become unavailable if we can no longer process data necessary to provide it.

You may complain to the competent supervisory authority, particularly where you habitually live or work or where an alleged infringement occurred. In the Czech Republic this is the Office for Personal Data Protection, https://uoou.gov.cz/. You do not have to resolve a matter with us before seeking regulatory or judicial protection.

07Users in other countries

The contact process above is available to users in every country. Mandatory local rights prevail. Where your US state privacy law applies, you may also use an authorised agent and ask privacy@silkidea.com to review a denied request; we respond within the applicable deadline and explain further remedies. We do not sell data or share it for targeted advertising across services. This document describes the categories, purposes, recipients and retention.

Users in the United Kingdom may contact the ICO https://ico.org.uk/, in Switzerland the FDPIC https://www.edoeb.admin.ch/ and in Brazil the ANPD https://www.gov.br/anpd/. Local rights, including information about recipients, the consequences of refusing consent and review of decisions, remain available. The page language does not determine your residence or the scope of your rights.

08Policy updates

The date and version appear above. We explain material changes and provide appropriate notice, for example in the app or on the website before new processing begins. Editing this page does not authorise a new purpose requiring consent. Previous versions are available on request.

09Language versions

We prepare these documents in Czech and provide translations. If language versions of the same document and the same version conflict, the Czech text prevails to the extent permitted by applicable law. This does not affect mandatory local language requirements, mandatory consumer rights, interpretation of ambiguities in the consumer’s favour or information reasonably relied on when concluding the contract. This clause does not give priority between different dated versions and does not override the separate Apple Standard EULA or Joinly documents.