Privacy · Effective Oct 2026

Privacy Policy

Effective Date · October 22, 2026

Last updated · October 22, 2026

Version · 1.5

What changed on October 22, 2026

  • The app now includes Meta's SDK to measure which of our ads on Instagram and Facebook lead people to install the app. We describe what it sends (and what it never sends) in Section 3, how Meta handles it in Section 6, and how to opt out in Section 7.
  • We named our Privacy Officer in Section 7.

This Privacy Policy explains how FourMeasure, Inc. ("FourMeasure", "we", "us") collects, uses, shares, and protects information when you use the FourMeasure mobile application and related services, including our website (the "Service"). By using the Service, you agree to this Policy. If you do not agree, do not use the Service.

1. Who We Are

The data controller responsible for your information is FourMeasure, Inc., 500 Oleander Drive, Hallandale Beach, FL 33009. For any privacy question or request, contact support@fourmeasure.com.

2. Information You Provide

  • Account information: an email address or a phone number. A password is optional and depends on how you sign up: accounts created with a phone number or with Google/Apple have no password unless you add one. You may also add a recovery email address, or link a Google or Apple account, so you have more than one way back in.
  • Your phone number, if you provide one. A verified phone number is stored as a sign-in identity for your account. We also store a one-way keyed hash of it (a scrambled form that cannot be reversed back into the number), which is what lets the "find friends" feature below work. See the note on being found by phone number below.
  • Profile information: username, display name, bio, profile photo/avatar, your "top items" (favorite songs/albums), and your favorite genres.
  • Date of birth (to confirm you meet our minimum age and for age-appropriate features).
  • Content you create: posts, reviews, ratings, comments, reactions, and the contents of direct messages (including any images or media you attach).
  • Photos you upload: if you add a photo background to a review, we collect and store the image you capture. Review backgrounds are taken with the in-app camera, and we do not support video. Profile pictures and images you attach to direct messages can also be chosen from your photo library, which the app asks your permission to open; we receive only the specific images you pick, never your library as a whole. We strip embedded metadata, including EXIF location (GPS) data, from every image on upload, before it is stored. Uploaded photos are screened automatically for explicit content and may be rejected. If you turn on saving reviews to your camera roll, the app writes a copy of the finished review card (your photo with the song title, artist, rating, and cover art shown on it) to your device's photo library. That copy is made on your device and stays there: turning this on sends us nothing and creates no new information we hold about you. You can turn it off at any time in Settings. (See our Community Guidelines.)
  • Reports and communications: reports you submit about content or users, and messages you send to support, including through the contact form on our website.
  • Referral Program applications. If you apply to our Referral Program on our website, we collect the information you enter in the application: your full name, email address, country of residence, what you are applying as, whether you are an artist, whether you are in college or university (and if so, your school and year), the social media accounts and usernames you choose to share, your estimated audience reach, and, if you provide it, your FourMeasure username. You also confirm that you are 18 or older and that you understand applying does not guarantee acceptance or payment. You do not need a FourMeasure account to apply. We do not ask for bank details, tax identification numbers, identity documents, or your home address when you apply. If you are accepted, any information needed to pay you is collected separately under a written agreement.
  • Referral codes. If you enter a referral code when you sign up, we record the code and link your account to the person who referred you, so we can run our Referral Program and prevent abuse.
  • Contacts (only if you choose to). On the "find friends" step you can ask us to check whether people already in your phone's address book are on FourMeasure. This is optional: you can skip the step, decline the permission, or turn it off later in your device settings, and the rest of the app works either way. If you do turn it on, the app sends us the phone numbers from your address book. We convert each one to a one-way keyed hash, compare those hashes against the phone numbers of existing accounts, and show you the matches. We use the numbers only for that comparison: we do not store the numbers you send us, we do not keep the hashes, and we do not create a record of, or send anything to, people in your contacts who are not already FourMeasure users. We never sell or share contact data, and we do not use it for advertising. Contacts are not shared with any third party.
  • Being found by your phone number. The "find friends" feature works in both directions. If you have verified a phone number, anyone who has that number in their address book and uses this feature will be shown your account, and there is currently no setting to turn this off. Only people who already have your number can find you this way; your number is never shown to them, and it is never revealed to anyone who does not already have it. If you would prefer not to be discoverable this way, do not verify a phone number, or contact us at support@fourmeasure.com.

3. Information We Collect Automatically

  • Device and instance identifiers: a Firebase Cloud Messaging push token (to deliver notifications) and a first-party Firebase analytics app-instance identifier, both associated with your account. Meta's SDK (see "Advertising measurement" below) also creates its own random identifier for the app installation. We do not collect advertising identifiers (Apple's IDFA or Android's Advertising ID).
  • A device identifier we generate. The app creates a random identifier for your phone and stores it on the device. We receive it when your device registers for notifications, and we use it for one purpose: if more than one account signs in on the same phone, it lets us send a notification once instead of once per account. Unlike the identifiers above, it is stored on your device independently of any account: it is not cleared when you log out, and on iOS it can survive reinstalling the app. On our servers it is attached only to the notification settings of whichever account is currently signed in: it is deleted when that account is deleted, and when another account signs in on that phone. We do not use it for advertising, analytics, or tracking you across other apps.
  • Your device's time zone (for example, "America/New_York"), sent when your device registers for notifications. We use it to send time-sensitive notifications at a sensible hour where you are, and to work out daily streaks. It tells us roughly what part of the world you are in; it is not precise location.
  • Log and usage data: IP address, device/user-agent information, timestamps, and actions taken in the app (e.g., posts viewed, features used).
  • Approximate location (no GPS): we do not collect precise or GPS location, and the app does not request location permission. Our analytics provider (Google/Firebase) derives an approximate location (such as country or city) from your IP address for analytics. We also use and retain your IP address to secure your account, manage your active sessions, and help prevent fraud.
  • Analytics and diagnostics (mobile SDKs):
    • Firebase Analytics (Google): a fixed set of product-interaction events (such as sign-up, login, post created, follow) keyed to your internal account identifier, not your name, email, or phone.
    • Firebase Crashlytics (Google) and Sentry: crash and error diagnostics (stack traces and device state) tied to your internal account identifier.
  • Advertising measurement (Meta SDK): we advertise FourMeasure on Meta's services, such as Instagram and Facebook. To learn which of those ads lead people to install and open the app, the app includes Meta's software development kit (SDK). It automatically sends Meta a small set of app events (that the app was installed, and when it is opened) together with technical information: your device model, operating system and app version, language, time zone, IP address, and the random identifier the SDK creates for the app installation. It may also send Meta crash reports about the SDK itself. We do not send Meta your name, email, phone number, username, account identifier, posts, messages, or music activity, and the SDK does not collect advertising identifiers (Apple's IDFA or Android's Advertising ID). Meta uses this information to report to us how our ads perform, and handles it as described in Section 6 and in Meta's Privacy Policy.
  • No ads in the app, and no cross-app tracking: the app does not display ads and does not present Apple's App Tracking Transparency prompt. We do not track you across other companies' apps or websites. On iOS, Meta's SDK follows your device's tracking permission, and because the app never asks for it, tracking is treated as not permitted.

4. Information From Third Parties

  • Single sign-on: if you sign in with Google or Apple, we receive basic profile information from them (such as your email, name, and avatar) per your settings with that provider.
  • Connected music providers: if you connect a music account (e.g., Spotify, Apple Music), we receive information needed to provide the integration, which may include your now-playing/listening activity (when you enable that feature) and access tokens. We store provider access and refresh tokens encrypted and use them only to provide the features you enabled.
  • Phone verification: when you verify a phone number, our verification provider (Firebase Phone Authentication) confirms the number to us.

5. How We Use Information

We use information to: create and secure your account; provide and personalize the Service (feeds, profiles, recommendations, messaging); deliver notifications; enable features you turn on (such as music-provider integrations); maintain safety and integrity (moderation, abuse prevention, enforcing our Community Guidelines); analyze and improve the Service; measure how well our own advertising for FourMeasure performs on other services; communicate with you about the Service; review Referral Program applications, decide whether to accept them, and contact applicants about their application; and comply with legal obligations. Where required by law, we rely on legal bases including performance of our contract with you, your consent (which you may withdraw), our legitimate interests (such as security and improving the Service), and compliance with legal obligations. For Referral Program applications, we rely on steps you ask us to take before entering into an agreement with you, and on our legitimate interest in running the program.

6. How We Share Information

We do not sell your personal information for money, and we do not share it for cross-context behavioral advertising. We share information only as follows:

  • With other users: your profile and the content you choose to share are visible to others according to your settings. If your account is private, your content is limited to approved followers. Direct messages are visible to participants in the conversation. If a direct message is reported, that message becomes visible to our moderation team so the report can be reviewed; only the reported message is shown, not the surrounding conversation.
  • Service providers (sub-processors) who process data on our behalf under contract. Each is bound by that contract to protect your information to at least the standard described in this Policy, to use it only for the purposes we specify, and never to sell it. The providers we use are:
    • Amazon Web Services (AWS): cloud hosting, file/media storage (S3), content delivery (CloudFront), automated image content-safety screening (Rekognition), and transactional email (SES).
    • Google / Firebase: push notifications (FCM), phone-number verification (Phone Authentication / SMS), product analytics (Firebase Analytics), crash diagnostics (Firebase Crashlytics), email, and data storage and analysis (BigQuery).
    • Sentry: crash and error monitoring/diagnostics.
    • Spotify and Apple Music: only if you connect those accounts.
    • Giphy: GIF search within comments and messages.
    • Musixmatch: music metadata.
    • Formspree: receiving and storing messages and applications submitted through the contact and Referral Program forms on our website, and delivering them to our team by email.
  • Advertising measurement (Meta): Meta Platforms, Inc. receives the limited app-event information described in Section 3 so we can measure our ads on Facebook and Instagram. We turn on Meta's "Limited Data Use" setting, which applies to people in California and the other U.S. states where Meta offers it: for those people, Meta processes this information only as our service provider and does not use it to target ads. For people elsewhere, Meta may also use it as described in its own Privacy Policy. Meta never receives your name, contact details, account identifier, or anything you post or send in the app.
  • For legal and safety reasons: to comply with law or valid legal process, enforce our Terms, or protect the rights, safety, and security of users, the public, or FourMeasure.
  • Business transfers: in connection with a merger, acquisition, financing, or sale of assets, subject to this Policy.

7. Your Choices and Rights

  • Access, update, and delete: you can view and edit your profile in the app, and you can delete your account at any time from the app, which removes your account and associated personal data (subject to limited retention described below).
  • Notifications: you can control push notifications in your device and app settings.
  • Connected accounts: you can disconnect a music provider at any time.
  • Advertising measurement: you can see and manage how Meta uses information it receives from apps and websites in your Facebook or Instagram Accounts Center, under "Your activity off Meta technologies". On iOS, the app does not ask for tracking permission; you can stop every app from asking in Settings > Privacy & Security > Tracking. On Android, you can delete your advertising ID in your device's privacy settings (the app does not collect it). You can also use the Digital Advertising Alliance's AppChoices tool.
  • Contacts: finding friends from your contacts is optional. You can skip it, decline the permission, or revoke it at any time in your device settings. Because we do not store the numbers or hashes from your address book, there is nothing left for us to delete when you revoke it.
  • Privacy (GDPR/EEA/UK): if you are in the European Economic Area or the UK, you have rights to access, rectify, erase, restrict, or object to processing of your personal data, to data portability, and to withdraw consent. You may also lodge a complaint with your local supervisory authority.
  • Privacy (California/US state laws): if you are a California resident (or in a U.S. state with similar laws), you have rights to know, access, correct, and delete your personal information, and to not be discriminated against for exercising them. We do not sell personal information, and we do not "share" it for cross-context behavioral advertising: the only advertising partner we use, Meta, receives limited app-event data to measure our own ads, and we turn on Meta's Limited Data Use setting so that for residents of California and the other covered states Meta processes it only as our service provider. For that reason we do not offer a separate opt-out of sale or sharing.

To exercise any right, contact support@fourmeasure.com. We will verify your request and respond as required by law. You may use an authorized agent where permitted.

Privacy Officer. Maximus Vickers is our designated Privacy Officer, the person responsible for overseeing our compliance with applicable data-protection laws. You can reach our Privacy Officer at support@fourmeasure.com.

8. Data Retention

We keep personal information for as long as your account is active or as needed to provide the Service, and afterward only as necessary to comply with legal obligations, resolve disputes, enforce our agreements, and for reasonable backup/security purposes. When you delete your account, we delete or de-identify your personal data within 30 days, except where a longer retention period is legally required. Application security and server logs (such as IP addresses) are retained for up to 90 days and then automatically deleted. Infrastructure logs held by our hosting provider may be retained separately under that provider's retention settings.

Sign-in and verification records. Signing in, verifying a phone number or email address, and confirming a sensitive change all create short-lived records (such as a one-time code or a confirmation token) so we can check the step was completed. These expire quickly, typically within minutes, and cannot be used again afterward. They are deleted when your account is deleted, and expired ones are cleared automatically.

Moderation and enforcement records. When we take a moderation or enforcement action (for example removing content, or suspending or banning an account), we keep a record of that action, including which staff member took it and why. These records are retained after an account is deleted, for safety, abuse-prevention and legal purposes, so that enforcement history is not erased by deleting and re-creating an account.

Photos. Photos you upload are stored for as long as your account exists. If you replace or remove a photo, the image may remain in our storage and in content-delivery caches for a period afterward. When you delete your account, photos attached to your posts are deleted from our storage; copies may persist in caches for a period after removal.

Referral Program applications. We keep an application for as long as we need it to review it and, if you are accepted, to set up and manage your participation, and afterward only as required by law. If your application is not accepted, we delete it within 12 months of our decision. Because you can apply without an account, deleting a FourMeasure account does not delete an application. To have your application deleted sooner, email support@fourmeasure.com from the address you applied with.

9. How We Protect Information

We use technical and organizational measures to protect your information, including encryption in transit, hashing of passwords, and encryption at rest for sensitive items such as connected music-provider tokens. No method of transmission or storage is 100% secure, so we cannot guarantee absolute security.

Photos are served publicly. Photos attached to posts are delivered from a public content-delivery network. Anyone with the direct link to an image may be able to view it, even if the post it belongs to is later restricted, made private, or removed.

10. Children's Privacy

The Service is for users 16 and older. We do not knowingly collect personal information from children under 16. If you believe a child under 16 has provided us personal information, contact support@fourmeasure.com and we will take steps to delete it. If you are between 16 and the age of majority where you live, use the Service only with a parent or guardian's consent.

The Referral Program is open only to people 18 or older. Applicants must confirm their age when they apply, and we delete any application we learn was submitted by someone under 18.

11. International Data Transfers

We operate primarily in the United States, and your information may be processed in the United States and other countries that may have different data-protection laws than your own. Where required, we use appropriate safeguards (such as Standard Contractual Clauses) for cross-border transfers.

12. Third-Party Links and Services

The Service may link to or integrate third-party services. Their use of your information is governed by their own privacy policies, not this one. Review the privacy policies of any music provider or other service you connect.

13. Changes to This Policy

We may update this Policy from time to time. If we make material changes, we will provide notice (for example, in the app) and update the "Last updated" date. Your continued use of the Service after changes take effect constitutes acceptance.

14. Contact Us

Questions or requests about this Policy or your information: support@fourmeasure.com, or FourMeasure, Inc., 500 Oleander Drive, Hallandale Beach, FL 33009.