Last updated: August 27, 2026
Version 1.4
This Privacy Policy describes how Music Solutions LLC (“Music Solutions,” “we,” “us”) handles information in connection with EyeOnian™ (the “app”), across its native applications and its web version, together with the related website and services (collectively, the “Service”).
The native EyeOnian™ apps have no accounts and make no calls to Music Solutions servers.
The web version collects only what is needed to process your purchase and run the app.
We do not use advertising trackers, and we never receive your payment card details.
The native EyeOnian™ apps have no accounts, no registration and no login. They contain no third-party analytics or crash-reporting SDKs, no advertising, no advertising identifiers, and no advertising or attribution SDKs. The apps make no calls to Music Solutions servers. We never receive your name, email address, or payment details.
Payment is processed by Apple or Google under their own privacy policies. No card, bank or other payment instrument details reach us or any service acting on our behalf.
Apple and Google give us sales reporting through their developer dashboards. Most of what we see is aggregated and does not identify you. Where a transaction needs to be handled individually — for example a refund — the store’s tools show us that order and its identifiers. We do not receive your name, email address or payment details in any case.
How your purchase is handled. We use RevenueCat to process your purchase and to keep a record of your subscription. RevenueCat processes this information for us under a data processing agreement. Under RevenueCat’s own terms it may also analyze information about the use and performance of its service to improve and develop its products, and may disclose such information in aggregated or de-identified form.
RevenueCat does not receive your name, email address, payment details, or your advertising identifier. The apps do not request an advertising identifier and cannot access one.
Your IP address is visible to RevenueCat, as it is to any service your device contacts. RevenueCat uses it to record which country your device is in.
Our server is notified of purchases. RevenueCat notifies our server when a purchase or a refund happens. That notification comes from RevenueCat’s own systems, not from your device — your device never contacts our servers, and your IP address is not part of it. It identifies the transaction and the product, and it exists so that web subscriptions can be kept up to date; for a purchase made in a native app there is nothing for our server to update.
Your purchase record. RevenueCat holds a record for your installation. It includes the information described below, along with your transaction history and the total you have spent. It does not contain your name, email address, or payment details.
That record is what lets us recognize your subscription, so we keep it for as long as we use the service. Records held by Apple or Google about your transaction are theirs and are not ours to delete.
Your saved EyeOnotes sync to your own private iCloud storage so they are available across your devices. This uses your personal iCloud under Apple’s privacy policy; we have no access to it and cannot read your notes. If you are not signed into iCloud, your notes are stored only on your device and simply do not sync. You can turn syncing off in your device’s iCloud settings for EyeOnian.
What determines whether you have access. Your subscription is validated on your device by the App Store, using records Apple maintains for your Apple Account. That is what the app uses to decide what you can use, and it works without a network connection.
What is sent to RevenueCat. When the app opens, and when you buy or restore a purchase, the app sends RevenueCat:
Your saved EyeOnotes are stored on your device and are not synced by the app. Android’s own backup feature may include app data in your Google account backup; that is an operating-system function rather than something the app does, it is governed by Google’s privacy policy, and you can turn it off in your device’s backup settings.
When the app opens, it sends RevenueCat:
When you buy or restore a purchase, the app also sends the purchase identifiers issued by Google Play and the product you bought. It sends these automatically if it finds a purchase we have not yet recorded — for example after you reinstall the app — so that your access is restored without you having to do anything.
The Google Play billing library included in the Android app also sends its own diagnostic information to Google. That is Google’s own component operating under Google’s privacy policy, and it is not something we request, receive, or control.
The web version of EyeOnian™ collects only the limited information described below.
Accounts, Purchases and Access. The web version uses Supabase (hosted on Amazon Web Services in the United States) to manage your account—including your email address—store your access status, and keep a record of your agreement to our Terms (the version you accepted and the date). You can create an account with an email address or by signing in with Google. If you use Google sign-in, Google shares basic profile information with us — such as your email address, and, depending on your Google account, your name and profile image. We use only your email address to identify your account; any additional profile information Google provides is stored with your account but is not otherwise used, subject to Google’s Privacy Policy.
We use RevenueCat to manage purchases and unlock paid features. RevenueCat links your purchase history to your Supabase account identifier. Because this is a web application, RevenueCat also receives transaction metadata and your billing email address directly from our web payment processor. RevenueCat stores this data on servers located in the United States (Amazon Web Services). For more details, you can review RevenueCat’s Privacy Policy.
Payment. Payments on the web are processed by Stripe. To complete a purchase, Stripe collects your email address and payment details. We never receive or store your payment card information — it is handled entirely by Stripe under its own privacy policy. We may receive your email address from Stripe to associate with your purchase and to send purchase-related notices.
App functionality. To run the interactive parts of EyeOnian™ on the web, the queries and configurations you create in the app are processed on our servers (hosted by Cloudflare) rather than only on your device, so that results can be returned to you within the app. We do not use this information to build a profile of you or for advertising.
Your saved EyeOnotes. On the web, your EyeOnotes are stored by your browser on the device you are using. We do not host them and they are not sent to our servers.
You can choose to connect a cloud backup. If you connect OneDrive, EyeOnian™ signs you in to your own Microsoft account and keeps a backup in a folder belonging to this app alone; it cannot see anything else in your OneDrive. That backup sits in your personal Microsoft account under Microsoft’s privacy policy, and we have no access to it and cannot read your notes. You can disconnect at any time in Settings, and you can delete the backup yourself from your OneDrive.
Where your browser supports it, you can also pick a folder on your own device for EyeOnian™ to mirror your notes into. That folder stays on your computer and nothing from it reaches us.
Approximate location. During checkout, Stripe and our servers (via Cloudflare) process your IP address to determine your approximate location. We use this only to confirm your purchase is from a permitted region and to help detect and prevent fraudulent transactions. We do not track your location while you use the app.
We do not sell or share your personal information, and we do not use advertising trackers.
The native apps do not use cookies. The apps generate an anonymous identifier for your installation so that your purchase can be recognized, and on Apple devices a device identifier described in the Native apps section is sent along with it. These are used only to handle your purchase. We do not use them, or anything else, to build a profile of you, to follow you across other apps or websites, or for advertising. We do not share your information with advertisers or data brokers.
The web version may use cookies or similar technologies only where needed to keep you signed in, remember your purchase, and operate the app. Where required by law, we will ask for your consent before using any non-essential cookies or similar technologies.
We do not track EyeOnian™ users across third-party websites or services, and we do not use advertising trackers. Because we do not perform such tracking, our Service does not respond differently to browser ‘Do Not Track’ (DNT) signals.
We never receive or store your payment card details. On the native apps, payments are handled by Apple or Google. On the web, payments are handled by Stripe. Each processes your payment under its own privacy policy.
Depending on where you live, you may have the right to access, correct, or delete the personal information we hold about you, and to withdraw consent where processing is based on consent.
The only record associated with your installation is the purchase record described in the Native apps section, which holds no name, email address or payment details and is kept for as long as we use the service.
To make a request, contact us at privacy@eyeonian.com.
California residents (CCPA/CPRA). If you are a California resident, you have the right to know what personal information we collect, to delete it, to opt out of its sale or sharing, and to non-discrimination for exercising these rights. We do not sell or share personal information. To exercise your rights, contact us at privacy@eyeonian.com.
Our web service providers (including RevenueCat, Stripe, and Cloudflare) may process data in the United States or other countries, which may have different data protection laws than your own. Where required, we rely on appropriate safeguards such as Standard Contractual Clauses or other legally recognized transfer mechanisms.
For the native apps, RevenueCat retains the purchase record associated with your installation for as long as we use the service, so that your purchase can continue to be recognized.
For the web version, we retain purchase-related information (an anonymous purchase record and, where provided, your email) for as long as needed to provide access to what you bought and to meet legal, tax, and accounting obligations, after which it is deleted or anonymized. You may request deletion of your data by contacting us at privacy@eyeonian.com, subject to any legal obligation to retain it.
EyeOnian™ is not directed to children under 13, and we do not knowingly collect personal information from children under 13. The native apps have no accounts and ask for no personal information from anyone. If you believe a child has provided us personal information through the web version, please contact us at privacy@eyeonian.com and we will delete it.
We use reasonable physical, electronic, and procedural safeguards to protect the limited information the web version handles. If a data breach affects your personal data, we will notify you as required by applicable law.
We may update this Privacy Policy from time to time. We will post any updated version here with a new “Last updated” date, and where required by law we will seek your consent to material changes before they take effect.
Music Solutions LLC
Questions about this policy or your privacy: privacy@eyeonian.com