effective 29 september 2026

privacy policy

the short version: null doesn't collect any data about you. everything it keeps stays on your iphone, and there is no server for it to go to.

what null does not do

• no account, sign-in or email address is ever asked for.
• no analytics, crash reporting, advertising or tracking sdks are included.
• null has no server. it never sends your data anywhere, and nothing is sold or shared.

screen time data

null uses apple's screen time frameworks (family controls, managed settings and device activity). when you choose apps to block, apple gives null opaque tokens instead of app names, so null can block an app without knowing which app it is.

your daily usage on the home screen is drawn by a sandboxed extension that apple runs on your device. that extension can't send data out, even to the rest of null, so your usage can't leave your iphone through null.

what is stored on your iphone

• your sessions: start and end times, length, the way out you chose, and whether each was kept.
• your schedules and daily limits: names, times, days, allowances, and the blocked app tokens.
• how many times a blocked app was opened each day, kept for two weeks, so null can show it back to you.
• your settings: daily goal, default session length, way out, appearance, and with null pro, strict mode, your app icon, shield words and pledge.
• a friend's 4 digit code, only for the session or schedule it belongs to.
• if you pair an nfc chip, its hardware id. null also writes the link jafdevs.github.io/focus onto the chip so a tap can open the app.

this data lives in null's storage on your device and in the app group its extensions share. it isn't synced to icloud or any other service.

notifications

null only sends local notifications, scheduled on your iphone: when a session or break ends, and when you ask a blocked app for a way out. no push server is involved.

purchases

null pro is sold through the app store, as a subscription or a one-time purchase. apple handles payment; null only learns whether your apple account has null pro, which plan, and when it renews or ends, so it can unlock pro features and show your plan. null never sees your payment details.

children

null isn't directed at children under 13 and collects no personal information from anyone.

deleting your data

settings → delete everything erases every session, schedule, setting and your paired chip. deleting the app removes it all too.

changes

if this policy changes, the new version will be posted here with a new effective date. null will never start collecting data without saying so first.

contact

questions about privacy: jafdev@outlook.com.