Terms & Privacy

Terms

Circuit is licensed, not sold, under Apple's Standard End User License Agreement — the same terms that cover any App Store app sold without a licence of its own. We have not written a custom one.

Circuit Pro

Circuit Pro is $59.99 a year with a 7-day free trial, $12.99 a month, or $4.99 a week. Those are the United States prices; the App Store shows the price in your own currency, and it is the price on the purchase screen that binds.

• Payment is charged to your Apple Account when you confirm the purchase.
• The subscription renews automatically unless it is turned off at least 24 hours before the current period ends, and your account is charged for renewal within the 24 hours before that.
• Manage or cancel it any time in App Store settings. Cancelling stops the next renewal; it does not shorten the period you have already paid for.
• One subscription covers your Family Sharing group. Only the person who bought it can cancel it.
• Refunds are Apple's to give, not ours — reportaproblem.apple.com.

The download is free, but using Circuit needs Circuit Pro; only the yearly plan has the free trial. If you installed Circuit before Circuit Pro became required, the free plan you had — one schedule, the breaker up to 30 minutes and a week of stats — stays free. Nothing in Circuit is charged for outside these subscriptions: there are no consumables, no ads and no upsells inside a session.

Privacy Policy

Effective 9 September 2026; updated 19 September 2026 for Circuit 2.1.1, 28 September 2026 for this website's analytics, 29 September 2026 for Circuit 2.3, and 21 October 2026 for Circuit 2.14. Contact: team@getmegabrain.com

Circuit blocks apps on your iPhone. There is no account, and nothing about which apps you block ever leaves the device — Circuit cannot read the names of the apps you pick in the first place. Three anonymous things do leave, and they are the whole of the list below: your subscription receipt, anonymous usage events, and a stack trace if the app crashes.

What Circuit stores

All of it stays on your device, in the app group group.app.circuitai.client, and is included in your encrypted iPhone backup if you make one: the apps, categories and websites you select (Circuit gets opaque tokens, not names); your circuits, schedules, modes and friction settings; sessions you start and finish, and daily limits; and your subscription status.

What leaves the device

• Your subscription receipt, to RevenueCat, with a random identifier for this install — never your name, email, or which apps you block. From Circuit 2.1.1, RevenueCat also passes subscription events — trial started, renewed, cancelled, refunded, with the price — on to Amplitude under the same random identifiers, so they can be counted next to the usage events below. With Settings → Analytics off, those events are no longer linked to this install's usage, but RevenueCat still forwards them, because they come from the subscription server rather than the app. revenuecat.com/privacy
• Anonymous usage events, to Amplitude: which screens get opened, and when the app is launched or backgrounded, under a random install identifier. From 2.1.1 they also describe how the app is used, as counts and durations: which onboarding step was reached, whether Screen Time and notifications were allowed, when a block starts and ends and how long it ran, how many apps and categories it covers (a number, never which), when the block screen appears and how an unlock request ended, and when the price screen opens and closes. From 2.3 they also say why Screen Time was not allowed (for example, “Don’t Allow” was tapped, or Screen Time is restricted), which plan was picked on the price screen, and whether buying it went through, was cancelled or failed. From 2.14 they also say when a seasonal challenge's page is opened and when its goal is reached. IP-address collection and the Apple vendor identifier are switched off. They never contain which apps, categories or websites you block, the names of your rules, or your Screen Time usage. Settings → Analytics turns them off on the spot: with the switch off no new event is recorded, and only events accepted before you flipped it can still be sent. amplitude.com/privacy
• A crash report, to Firebase Crashlytics, only when the app actually crashes: the stack trace and device state around it. firebase.google.com/support/privacy

Firebase Analytics is not in the app — crash reporting is the only Firebase component Circuit uses. Versions before 2.1 sent no usage data and no crash reports at all.

Ad attribution, from Circuit 2.1.1, and only if you installed Circuit from an ad: Apple's SKAdNetwork and AdAttributionKit tell the ad network, through Apple and without identifying you, how far the install got — onboarding finished, a first block, a trial, a purchase. For Apple Ads, Apple's AdServices token goes to RevenueCat with your receipt, so a trial can be matched to the search keyword that led to it. None of this uses the advertising identifier or needs tracking permission.

Seasonal challenges, from Circuit 2.14: the app downloads the list of challenges — their names, dates and goals — from this website, the same file for everyone. The request carries nothing about you; like any request to a website it passes through Vercel, which hosts the site. Whether you meet a challenge is worked out on your iPhone from your own blocks, and its badge stays there.

This website counts page views with Vercel Web Analytics and Google Analytics: which page, the referring site, and country and device type. Vercel sets no cookies. Google Analytics sets first-party analytics cookies, except in the EEA, the UK and Switzerland, where it runs without cookies. Google signals and ad personalization are off, the site shows no ads, and none of this is linked to anything the app sends. policies.google.com/privacy

What Circuit does not do

• No Screen Time data is transmitted anywhere. What goes to Amplitude about a block is when it ran and for how long, as numbers — never what it blocked.
• No advertising, no profiling, no tracking across apps or websites.
• No account, email address or phone number.
• Screen Time usage figures in the Stats tab are drawn by Apple in a separate system process. Circuit cannot read those numbers and never receives them.
• Circuit is a self-control tool for the person holding the phone. It does not monitor anyone else and has no parental-reporting features.

Permissions

• Screen Time (Family Controls) — required. Authorization is for your own device only (.individual).
• Notifications — optional. Session and daily-limit alerts.

Deleting your data

Settings → Delete all Circuit data erases circuits, sessions, limits and stats immediately. Deleting the app removes everything, and also removes the blocks it was enforcing.

Usage counts already sent to Amplitude are not on your device and are not covered by that button. Turning Settings → Analytics off stops any more from being sent; to have the ones already collected deleted, write to team@getmegabrain.com and we will remove that install's identifier.

Children

Circuit is for people 18 and over managing their own screen time. It is not directed at children and does not knowingly collect data from them.

Changes

Material changes will be posted here and noted in the app's release notes.