Scheduled alerts
Everything below rests on one rule: a channel asks, and the phone decides. What arrives is guaranteed; how loudly it arrives is not, and any page that told you otherwise was selling.
Draft, schedule, send — and what cancelling cannot undo
Composing and sending are deliberately different permissions, so the person or script that writes an alert can be forbidden from publishing it. A scheduled alert becomes visible at its time without anything having to run at that minute, which means a server that was briefly down delivers late rather than never. Cancelling is honest about its limits: it stops an alert reaching phones that have not fetched it yet and does nothing at all to the phones that already have it. An alert cannot be unsent.
Three numbers, and the one we will not print
You get: how many devices could be reached at the moment you sent, how many phones reported opening the alert, and how many acknowledged it. What you do not get is a delivery rate, because there is no per-device delivery record anywhere in this product — that absence is exactly what makes sending to four million people cost the same as sending to four. Reads and acknowledgements are self-reports from handsets that chose to send one, and they are labelled as such rather than dressed up as receipts.
Questions, answered plainly
Can I unsend an alert?
No. Cancelling stops it reaching phones that have not fetched it yet, and does nothing to the ones that already have it. Compose as a draft and read it back before you send; that habit is worth more than any undo button we could offer.
Why is there no delivery rate?
Because there is no per-device delivery record anywhere in the product, and that is a deliberate design decision rather than a gap. A phone’s inbox is a query over sent alerts, which is what makes the cost independent of audience size. We would rather show three numbers we can stand behind than a fourth we invented.
Do subscribers need an account?
No. They install the app, subscribe to a handle, and that is the whole of it. Only the person running the channel signs up for anything.
How do people find my channel?
From the handle you give them: on a poster, in an enrolment email, on a QR code, in a footer. Public channels also appear in the app’s discover list. Sealed ones appear nowhere at all, by design.
Say it once. Every subscribed phone gets it.
Free up to 100 subscribers, no card to start, and the handle is yours permanently.
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