Last updated: 13 October 2026
This Privacy Policy explains how CoilSense (“we”, “us”, “our”) collects, uses and protects information when you use the CoilSense app on iOS or Android, and when you visit pages on infinityguitarworks.com that relate to CoilSense (together, the “Services”).
By using the Services, you agree to the collection and use of information as described here. If you don’t agree, please don’t use the Services.
1. Overview
CoilSense is a technical reference tool for guitar pickup wiring. It’s available on iOS (through the Apple App Store) and Android (through Google Play). Both versions handle data in the same way, and where something differs between the two, this policy says so.
We designed CoilSense to work with minimal data collection and no traditional user accounts. The app doesn’t ask for your name, email address or other contact details.
We do use a small amount of technical and purchase information to make the app work, specifically to:
– Provide access to wiring reference data
– Manage Pro access (the one-off in-app purchase)
– Keep the app reliable and secure
The rest of this policy describes that data in detail.
2. Information We Collect
2.1 Information You Provide Directly
The app doesn’t ask you to create an account, log in with an email address or submit personal details.
On the website, you may choose to give us information if you:
– Contact us by email or through a contact form
– Sign up for a mailing list (if one is offered)
In those cases, we receive whatever you choose to send (for example, your name, email address and the content of your message). We use it only to reply to you or manage your subscription.
2.2 Information Collected Automatically in the App
a) Anonymous identifier (Firebase Authentication)
When you first open the app, Firebase Authentication creates a random, anonymous user ID for that installation. You don’t log in or provide any credentials.
This ID isn’t linked to your name, email address or Apple or Google account. We use it only to attach your Pro purchase record (if you have one) to your installation.
If you uninstall and reinstall the app, a new anonymous ID is created.
b) Wiring reference data (Cloud Firestore)
The app downloads pickup wiring data and diagrams from Cloud Firestore, part of Google’s Firebase platform. As with any online service, Firebase may log standard request information (such as the time of a request and the data requested) as part of running its infrastructure. We don’t link this to your identity.
c) Purchase information (Apple App Store and Google Play)
Payments are handled entirely by the store you buy from:
– On iOS, Apple’s App Store (StoreKit) processes the payment.
– On Android, Google Play Billing processes the payment.
We never see or store your card details, billing address or other payment information.
After a successful purchase or restore, the store gives the app some details about the transaction. We save the following to Cloud Firestore against your anonymous ID:
– The platform (Apple App Store or Google Play)
– The product identifier (for example, pro_lifetime)
– The transaction ID (Apple) or order ID (Google Play)
– On Android, the Google Play purchase token, which lets us verify the purchase with Google
– The purchase date, and when the record was last updated
We use this record only to:
– Confirm that you have Pro access
– Keep an accurate record of Pro purchases
– Help prevent fraudulent purchases
Restoring Pro on a new device or after reinstalling is handled by your Apple or Google account through the store’s normal restore process, not by the anonymous ID.
d) Technical information
Firebase and the app stores may automatically process some technical information, such as:
– Device type and operating system version
– App version
– Basic diagnostic or crash information provided by Apple or Google (if you’ve chosen to share it with them)
We don’t currently send any custom analytics events from the app, and we don’t include any analytics, crash reporting or advertising SDKs.
3. Information Collected on the Website
When you visit our website, including pages about CoilSense:
– Our web hosting provider may log standard server information, such as your IP address, browser type, referring page and timestamps.
– If you contact us by email or through a contact form, we receive the information you submit.
– If we use analytics on the site (for example, privacy-friendly analytics), it may collect aggregated, de-identified usage data to help us understand how the site is used.
Any cookies on the website are used mainly for basic site functionality, performance and security. We don’t use website cookies for cross-site advertising or to track you across other services.
4. How We Use Your Information
We use the information above to:
– Run the app: provide pickup wiring reference data and unlock Pro features you’ve bought.
– Manage purchases: verify and record Pro purchases made through the Apple App Store or Google Play.
– Keep things secure: prevent fraud and abuse of in-app purchases and make sure transactions are genuine.
– Provide support: reply to emails and contact form messages, and handle privacy requests.
– Improve reliability: understand and fix problems with the app. If we add analytics or error reporting in future, it’ll be set up to collect minimal, non-identifying data, and we’ll update this policy first.
We don’t use your data for:
– Third-party advertising
– Building behavioural profiles for marketing
– Selling to data brokers
5. Legal Bases for Processing (EEA and UK Users)
If you’re in the European Economic Area (EEA) or the United Kingdom, we process your information on the following legal bases:
– Performance of a contract: to provide the app and the Pro features you’ve bought.
– Legitimate interests: to keep the app secure, prevent fraudulent purchases and improve the app in ways that don’t override your rights and freedoms.
– Consent: where required, for optional communications such as an email newsletter. You can withdraw consent at any time.
6. Data Retention
We keep information only for as long as it’s needed for the purposes in this policy, including to:
– Provide and maintain the app
– Manage Pro purchase records
– Meet our legal obligations
– Resolve disputes and enforce our agreements
In particular:
– Anonymous user IDs and Pro purchase records may be kept for as long as the app and the Pro upgrade are available, or until they’re no longer needed to verify purchases.
– Support emails are kept for as long as needed to deal with your enquiry, plus a reasonable period for record-keeping.
Where possible, we delete or anonymise information once it’s no longer needed.
7. Data Sharing and Disclosure
We don’t sell your personal information.
We only share information in these limited situations:
Service providers
We use trusted providers for infrastructure and purchase processing:
– Firebase (Google LLC) for anonymous authentication and database storage
– Apple (App Store and StoreKit) for in-app purchases on iOS
– Google (Google Play Billing) for in-app purchases on Android
These providers handle data in line with their own privacy and security commitments. Apple and Google also have their own privacy policies covering the payment information you give them directly.
Legal requirements and protection
– Where required by law, regulation, legal process or a government request
– To protect our rights, property or safety, or that of our users or others
– To detect, prevent or deal with fraud, security or technical issues
Business transfers
If CoilSense is involved in a merger, acquisition or sale of assets, information may be transferred as part of that deal. It’ll stay protected under this policy (or you’ll be told if the terms change).
We don’t share data with advertisers for targeted advertising or cross-app tracking.
8. International Data Transfers
Firebase, Apple and Google may process information on servers outside your country, including in the United States and other places where they operate data centres.
Where the law requires it, we rely on appropriate safeguards for these transfers, such as:
– Standard contractual clauses (where applicable)
– Data processing agreements with our service providers
– Technical measures that protect data in transit and at rest
By using the Services, you acknowledge that your information may be transferred to and processed in these locations.
9. Security
We take reasonable technical and organisational steps to protect your information from unauthorised access, loss, misuse or alteration. These include:
– Using established infrastructure providers (Firebase, Apple and Google) with strong security practices
– Storing only what’s strictly necessary (an anonymous ID and minimal purchase details)
– Relying on Apple’s and Google’s own verification of in-app purchases
No method of sending data over the internet or storing it electronically is 100% secure. We work hard to protect your information, but we can’t guarantee absolute security.
10. Your Rights and Choices
Depending on where you live, you may have the right to:
– Access: know what information we hold about you
– Correction: ask us to correct inaccurate information
– Deletion: ask us to delete your information, subject to legal and technical limits
– Restriction or objection: object to or limit certain types of processing
– Portability: receive a copy of certain information in a portable format
Because CoilSense uses anonymous IDs rather than user accounts, we don’t hold data that identifies you by name or email. That means some rights (such as portability) may be limited in practice.
Deleting your data
To ask us to delete your anonymous ID and Pro purchase record, email admin@infinityguitarworks.com. It helps if you include your store order or transaction ID (you’ll find it in your Apple or Google purchase receipt) so we can find the right record.
Deleting this record doesn’t cancel or refund your purchase. Your Pro upgrade stays linked to your Apple or Google account and can still be restored through the store.
To exercise any of your other rights, contact us using the details below. We may ask for extra information to make sure we’re acting on the right anonymous record.
You can also:
– Uninstall the app to stop any further data being collected
– Choose not to buy Pro if you’d rather no purchase record was stored
11. Children’s Privacy
CoilSense isn’t aimed at children, and we don’t knowingly collect personal information from children under the age set by applicable law (for example, 13 or 16, depending on where you live).
If you’re a parent or guardian and believe your child has given us information contrary to this policy, please contact us and we’ll review it and remove it where appropriate.
12. Third-Party Links
The Services may link to websites or resources we don’t run (for example, pickup manufacturers’ sites or documentation).
We’re not responsible for the content or privacy practices of those sites, so it’s worth checking their privacy policies when you visit them.
13. Changes to This Privacy Policy
We may update this policy from time to time to reflect:
– Changes to the Services
– Changes in the law or regulations
– Clearer ways of describing how we handle data
When we make significant changes, we’ll update the “Last updated” date at the top of this page and, where appropriate, let you know in the app or on the website.
If you keep using the Services after a change takes effect, you’re accepting the updated policy.
14. Contact Us
If you have any questions about this policy, or want to exercise your rights over your information, please get in touch:
Email: admin@infinityguitarworks.com
We’ll do our best to reply promptly.
This policy is meant to give a clear, practical description of how CoilSense handles information. It isn’t formal legal advice. If you have specific legal or regulatory concerns, it might be a good idea to speak to a qualified legal professional.
