Go to Project -> Push notification -> Recurring push section and click on "Add Autopush"
Enter the recurring push name and description. You can use either push preset or plain text message.
For our case with Pushwoosh Demo App we'll give user discount voucher for coming back to the app. Please note this preset also uses Dynamic Content to make push personal.
Choosing the audience
The next step is to determine the audience who will receive push notification. For this one we'll need "Last Application Open" tag which is default tag by Pushwoosh and it tracks when the app has been opened last time. For the operator we'll be using "exactly" and select "Days Ago" for the value and enter 3 to make it "exactly 3 days".
Defining the time and frequency
The last step is to select when to send push notification.
Let's set the "Frequency" to "Daily", and pick 1PM (around lunch time) as a time to send our message. Make sure to select "Timezone sensitive", so that each user receives this notification in their local timezone.
Save autopush and you're all set! Now after 3 days of not using your app user will receive a reminder prompting to come back to your app.