Push notifications are how birthday rewards, win-back offers and 7-day notices actually reach your customers — instantly and free (no per-message cost, unlike SMS).
Nobody taps "Allow" on a surprise popup. The Member app shows a value-first card first — explaining what they'll get (birthday treats, rewards reminders) — and only then the browser's permission prompt. Members who decline can allow later from Settings → Notifications in the app.
| Push | SMS | |
|---|---|---|
| Cost to you | Free, unlimited | Per-message |
| Requires | App installed | Phone number (they all have one) |
| Best for | Regulars with the app | Everyone else |
Members without the app installed automatically fall back to SMS for critical notices (birthdays, win-backs) — no one is missed, you just pay SMS rates for that smaller group.
The single biggest lever: make installing worth it. Run an installation push at the counter ("install and get 50 bonus points"), and your win-back and birthday reachability jumps.