Write to support@growepic.com and a human will answer, usually within one working day. It helps if you include the recipient number and roughly when you sent the fax.
The status carries the carrier's own reason. The usual causes are a busy line, a machine that never answered, or a number that is a voice line rather than a fax line. The app retries automatically several times with increasing delays before giving up. Check that the number really is a fax number, and that you dialled it in full international form.
Usually under two minutes for a few pages. Long documents and poor lines take longer, and a busy recipient can push a delivery out by half an hour while retries run.
PDFs, photographs and plain text. Colour and greyscale are converted to the black-and-white that fax machines print. Multiple images can share a sheet, or take one page each — your choice, on the send screen.
Yes. Buy a number in the Inbox tab and every fax sent to it appears there with its pages. The number stays yours while your subscription is active.
Settings → Apple ID → Subscriptions → Fax Pro → Cancel Subscription. The subscription runs to the end of the paid period. Refunds are issued by Apple, not by us — request one at reportaproblem.apple.com.
Profile → Delete my data removes every fax, page image and record tied to your device from our servers. It cannot be undone.
Never use this app for unsolicited advertising. Junk faxing is illegal in most countries and we suspend devices that attempt it.