On iPhone you can subscribe in Settings → Plans, paid through your Apple ID. The plan is linked to your 1kr account, so it also works on your other phones. You need to be signed in first.
- "Your purchase is waiting for approval.": with Ask to Buy (Family Sharing), a parent has to approve it first, or the payment method needs attention. The plan starts once Apple approves it.
- "This App Store subscription is already linked to another 1kr account.": this Apple ID's subscription belongs to a different 1kr account. Sign in with that account, or manage the subscription in the iPhone's Settings → Apple ID → Subscriptions.
- "The purchase could not be confirmed. Please try Restore Purchases.": tap Restore Purchases.
- "No active subscription was found for this Apple ID.": this Apple ID has no active 1krNote subscription. If you bought the plan on the website, it's already on your account: just sign in.
- "Could not reach the 1kr server. Check your connection and try again. A completed purchase is linked to your account automatically later."
- "Could not load the plans from the App Store." or "Plans are not available right now. Please try again later.": check the connection and that you're signed in to the App Store, then try again later.
To change or cancel an App Store subscription, use Manage subscription or the iPhone's Settings → Apple ID → Subscriptions. Plans bought on the website are managed on the website under Billing.