# How long does it take for push messages to reach customers?

Push messages are usually delivered within **20–30 seconds**, but delivery depends on how **Apple (iOS)** and **Google (Android)** handle notifications on each device.

If a customer is currently **using their phone** or has the **card open**, the push may not trigger immediately. This behaviour is controlled by the operating system and cannot be influenced on our side.

To check whether a message has been received, open your customer’s card and look at the **Latest Updates** section. If the phone processed the push, it will appear there.

Please note: **Card previews do not receive push updates** — they are only for testing your card design.

**Average Delivery Speed**

Under normal network conditions, push notifications via **Apple Push Notification Service (APNS)** or Android’s push system arrive within a few seconds.\
However, delivery time can vary based on:

* **Network connectivity** — slow or unstable internet increases delay
* **Device state** — powered off, airplane mode, DoNotDisturb mode, battery saver, or deep sleep
* **Wi-Fi restrictions** — some networks block the ports needed for APNS
* **System load** — APNS/Google servers operate on a best-effort basis
* **Notification priority settings**

Push notifications are fast in most cases, but because delivery depends on device behaviour and operating-system rules, delays or missed messages are always possible.