Privacy policy

What we see, and what we do not.

Last updated 31 August 2026. This policy covers the Megahertz iPhone app, the browser demo at megahertz.closiq.app/play, and this website.

The short version

• There is no account. Megahertz never asks for an email address, a password, a username, a phone number or a date of birth, and there is nowhere in the product to enter one.
• We hold no profile about you. There is no server-side save, no user database and no user id. We could not look you up if we wanted to, because there is no row to look up.
• Your save stays on your device, plus a copy in your own iCloud account that only you and Apple can read.
• We collect anonymous counters, dated to the day rather than the second, with no identifier attached to them at all.
• The iPhone app shows rewarded video from third-party ad networks, and those networks use the Apple advertising identifier only if you allow it when iOS asks. That is the one place in this product where anything about you leaves the device to a company that is not Apple, and section 5 describes it exactly.
• The browser demo contains no advertising code of any kind and sets no cookies.

1. Who we are

Megahertz is made and published by Closiq, a solo software business. Contact for anything on this page, including a privacy question: megahertz@closiq.app. A real person reads it.

2. What we deliberately do not collect

It is worth stating the absences, because in this category they are unusual and because "we do not collect it" is a stronger promise than any handling policy for data we did collect:

• No name, email address, password, username, phone number, date of birth or postal address. There is no field for any of them.
• No contacts, calendar, photos, microphone, camera or health data. The app requests none of these permissions and could not read them if it did.
• No location, at any precision, from any source.
• No cross-app or cross-site browsing history collected by us.
• No third-party crash or analytics SDK. Crash reporting is Apple's built-in Xcode Organizer and MetricKit, which reports only if you have opted into sharing analytics with developers in your iOS settings, and which we receive aggregated and anonymised from Apple.
• No email capture anywhere on this site. There is no newsletter and no signup form.

3. Your save file

Megahertz is a single-player game and it is authoritative on your own device. Your progress, your settings and anything you have purchased are stored:

• In the app's private container on your iPhone, as a compressed file. It never leaves the device except as described in the next line.
• As a mirror in your own iCloud key-value store, under your Apple Account, so a new phone picks the game up where the old one stopped. This copy is stored by Apple under Apple's privacy policy. We cannot read it. Turning off iCloud for Megahertz in iOS Settings stops the mirror and breaks nothing else.
• In the browser demo, in this browser's local storage. That is a per-browser store on your own machine, it is not a cookie, it is not sent anywhere, and clearing your site data deletes it.

There is no server-side save and no save sync of ours. That is a design decision rather than an omission: a per-user save on our servers would buy a database, a deletion path and a breach surface in exchange for something iCloud already does better.

Deleting the app deletes the local save. Deleting the iCloud copy is done from iOS Settings, under your Apple Account, iCloud, Manage Account Storage.

4. Anonymous counters

The app and the browser demo send a small number of counters to our own server, a Cloudflare Worker, so we can tell how far people get and whether something is broken. These are the entire list:

There is no identifier of any kind in these counters: no device id, no advertising id, no install id, no session id, no cookie and no free text. They cannot be joined back to a person, a device or each other, by us or by anyone who obtained the data.

Like every website, our server is reached over the internet, so Cloudflare necessarily processes your IP address in order to route and deliver the request and to block abuse. We do not store IP addresses, do not log them alongside these counters and have no way to retrieve them.

The app also fetches a small configuration file on launch, which is how a misbehaving feature can be switched off without shipping an update. That is a plain download; it sends nothing about you.

5. Advertising, in the iPhone app only

Every advertisement in Megahertz is a rewarded video that you pressed a button to see. There are five of them, they are capped, they each pay you something, and none of them plays unless you ask. There are no interstitials, no banners and no ad on launch. Settings has a free switch that hides the offers entirely.

The videos are served by Google AdMob, with AppLovin, Meta Audience Network, Unity Ads and Mintegral bidding for the slot inside AdMob's mediation. This is the one part of the product where a third party receives anything, and here is what that means precisely:

• iOS asks you first. Before any advertising identifier can be read, iOS shows Apple's own App Tracking Transparency prompt. If you decline, or never answer, the identifier is not available to these networks and you see contextual advertising instead. Nothing in the game is gated on that answer: every rewarded video works identically either way, and every reward is the same.
• If you allow it, these networks may receive your Apple advertising identifier (IDFA), your device model and operating system version, your coarse country, and the fact that an ad was requested, shown or completed. They use it to choose an advertisement and to measure it.
• We never send them anything about your purchases. Megahertz does not report purchase events to any ad network. Doing so would improve the bidding and we have chosen not to.
• We receive money and counts, not people. What comes back to us is aggregate revenue and impression totals.
• Apple's SKAdNetwork may also attribute an install to an advertisement. That is Apple's system, it is designed to be privacy-preserving by construction, and it involves no identifier we can see.

Their policies, which govern their own handling: Google, AppLovin, Meta, Unity, Mintegral.

The browser demo has none of this. The web build contains zero advertising code, not a disabled placeholder: the ad service resolves to an empty implementation at build time and no network SDK is in the bundle at all.

6. Purchases

All in-app purchases and subscriptions are handled entirely by Apple. We never see your payment details, your billing address or your Apple Account. What the app receives from Apple is a signed record that a particular product was bought, which is what unlocks it, and that record stays on your device.

Refunds are Apple's to grant, at reportaproblem.apple.com.

7. Game Center and notifications

The weekly Benchmark leaderboard is Apple's Game Center. If you are signed in, Apple handles the identity and the display name; we store no Game Center identifier of any kind. Signing out of Game Center removes you from the leaderboard and affects nothing else in the game.

There is exactly one notification: an optional ping when your Overnight Cache is full. It is asked for in context, it is off until you allow it, it is never promotional, and it can be turned off in iOS Settings or in the game.

8. Children

Megahertz is not directed to children and is not distributed in the App Store Kids Category. We do not knowingly collect personal information from anyone, of any age, because we do not collect personal information at all. The advertising networks are configured as not child-directed.

If you believe a child has provided personal information to us through this product, please write to megahertz@closiq.app and we will look into it, though as described above there is no account to find.

9. Your choices and your rights

Data-protection law gives you rights to access, correct, export and delete personal data held about you, and to object to its processing. We support all of them, and in almost every case the honest answer to a request is that we hold nothing that identifies you, so there is nothing to return or erase. What you can do directly:

• Withdraw advertising consent at any time: iOS Settings, Privacy & Security, Tracking, and turn Megahertz off. Advertising becomes contextual immediately and nothing in the game changes.
• Reset your advertising identifier: the same screen, turning tracking off for all apps.
• Hide the rewarded offers entirely: in the game, Settings. It is free and it takes nothing away from you.
• Delete everything: delete the app, and remove the iCloud copy from iOS Settings under your Apple Account. In the browser demo, clear this site's data.
• Ask us anything: megahertz@closiq.app. We answer within thirty days.

Where the GDPR applies, our lawful basis for the anonymous counters is legitimate interest in knowing whether the game works, and for personalised advertising it is your consent, given through the App Tracking Transparency prompt and withdrawable at any time. We do not sell or share personal information as those terms are defined by the CCPA, and we never have.

10. Changes to this policy

If this policy changes materially, the version here changes and the date at the top moves with it. If a change ever expands what is collected, the app will say so in its release notes rather than leaving it to this page to be noticed.