What Chronance handles
On your device
Chronance stores the weekly amount you set, the state of your current plan, and Apple's opaque Screen Time selection tokens on your device. Apple's Family Controls, Managed Settings, and Device Activity frameworks handle selection, shielding, automatic window expiry, and the weekly reset.
The readable names of the apps you choose and your raw device activity are not uploaded to Chronance or Supabase. Chronance records the aggregate time while a group is unpaused, counted by started minute; it does not read per-app foreground usage.
Chronance also keeps a local session ledger with each opening's group, start and end time, held, used, and returned minutes, written opening intention, and recent opening timestamps used to lengthen the pause between repeated requests. Session receipts, written intentions, repeated-opening history, and the lifetime Saved total are not uploaded or included in account sync.
When you create an optional account
Chronance may store:
- Your email address and authentication record.
- A Chronance-generated installation identifier used to keep this iPhone's synced plan separate from plans on your other devices. It is not an Apple device serial number or advertising identifier.
- Your group types and default window lengths, weekly start and end dates, allowances, aggregate used minutes, plan status, and number of Screen Time selections.
Chronance does not upload the specific apps you selected, websites you visit, messages, photos, contacts, or location.
When you join the website waitlist
Chronance stores the email address you submit, your selected site language, the signup time, and limited campaign details such as UTM labels, the referring site hostname, and the landing-page path in a private Vercel Blob store. If you complete the phone-habit diagnostic, we also store the daily screen-time range, app category, intended outcome, difficult time window, opening trigger, and suggested first-week target shown in your plan. We use this only to understand which invitations lead to signups, prepare early access, and send occasional product updates. You can ask us to delete it at any time.
How that information is used
On-device data operates the weekly attention bank, protects your selected apps, shows your remaining time and session receipts, adjusts repeated-opening pauses, and resets the plan for a new week.
Optional account data authenticates you, restores your weekly plan state, connects Chronance Pro to your account, and keeps aggregate progress consistent when cloud sync is available. It is not used for advertising or behavioral profiling.
App Store purchase data is used to offer, restore, and verify access to Chronance Pro and for aggregate subscription reporting. It is not used for advertising or cross-app tracking.
Service providers
Apple Screen Time provides app selection, protection, background window expiry, and weekly reset on your iPhone.
Supabase provides optional authentication and private cloud storage. Access rules restrict synced rows to the signed-in owner. Chronance also checks a Supabase service endpoint to defend the weekly reset against manual clock changes. That request may expose your IP address, a device-supplied request timestamp, and standard network metadata to Supabase, but it does not contain your selected apps or weekly balance. RevenueCat provides App Store subscription status, purchase restoration, and subscription reporting. It receives a random RevenueCat app identifier when you are signed out, or a pseudonymous Chronance account identifier when you are signed in, plus product, transaction, and entitlement status, IP address, and standard network metadata. Chronance disables RevenueCat's automatic device-identifier collection. Apple processes payment credentials; Chronance and RevenueCat do not receive your full payment-card number. Vercel hosts this website and privately stores waitlist submissions. Chronance does not include advertising networks or third-party analytics SDKs in the app.
Chronance requires service providers that process personal data for us to protect it consistently with this policy and applicable law.
Retention and deletion
Local plan, receipt, intention, and repeated-opening data remain on your device while Chronance is installed. Cloud data remains while your account is active or as needed to operate the service.
A random Chronance installation identifier is stored in the iOS Keychain and may remain after uninstalling Chronance or deleting an account. It does not contain your app choices or Screen Time activity. Chronance uses it to keep device recovery consistent across reinstalls.
You can permanently delete your cloud account and its synced records, including its identified RevenueCat customer record, inside Chronance. Open settings, open your account, and choose Delete account. Account deletion does not cancel an App Store subscription. Your current Screen Time plan is device-owned and may continue until you end it or revoke Chronance's Screen Time access.
Your choices
- Use Chronance without creating a cloud account.
- Change or revoke Screen Time permission in iOS settings.
- Sign out without deleting your local weekly plan.
- Delete your cloud account and synced records in the app.
- Restore purchases in Chronance, or manage and cancel a subscription through your Apple Account.
For privacy questions, email 624.johnny.pei@gmail.com. See the support page for recovery steps.
Policy updates
This page will be updated when Chronance's data practices materially change. The effective date above identifies the current version. Chronance is intended for people age 16 and older.