Email hello@kinzy.co. A person reads every message, usually within one business day.
iOS removes any app's Lock Screen Live Activity after about 8 hours. Opening Tack, or tapping a Tack widget, brings it back. This is an iOS rule, not something Tack can change.
Tack reads the calendars on your iPhone. Add the account once in Settings → Apps → Calendar → Calendar Accounts → Add Account. Your appointments then appear in Tack and in Apple's Calendar.
Open Settings → Calendars in Tack. Switch calendars on or off, or turn on Hide holidays.
Tap the note, then pick a Get ready time. The default for every note is in Settings.
Tack Pro is billed by Apple. Manage or cancel in Settings → your name → Subscriptions. Refunds are handled by Apple at reportaproblem.apple.com. Tap Restore Purchases in Tack's Settings on a new device.
Nothing leaves your iPhone. Read the privacy policy.