| I'm developing an app with critical realtime notifications. Do you mind if I ask you a few questions? 1. Does your 85% delivery rate apply to FCM "notification messages" (displayed to user) or only to "data messages" (processed by app)? 2. Do some devices fail to deliver messages when your app is in the foreground? And does it happen often with US-based devices? 3. When the app is in the background, how long does it take for it to stop receiving notifications? I know the answer must vary by device. 4. How do you determine delivery rate of notification messages? I believe those are handled entirely by Android OS and app code runs only when they are tapped. I'm using Flutter and have not yet dug into the details of how Android processes and displays notifications. 5. Do you use FCM to deliver APNS messages? 6. How reliable are APNS messages to a foreground app for US users I'm considering launching iPhone-only. My app helps people make appointments (dates). It uses notifications to remind users of their upcoming and imminent appointments. The backend detects when a user has not tapped a critical notification and sends them an SMS. This should reach the user even if they didn't see the notifications or they uninstalled the app without cancelling their appointments. I also implemented real-time chat using FCM data messages with a slow poll fallback. If data messages are not reliable, then I will need to replace the slow poll with a realtime push service. That will be a significant cost in added complexity. I would like to put off that work. I'm a solo bootstrapper. Working with Android and FCM has been daunting. Would you be interested in mentoring me a few hours a month? I can pay you. My email is in my profile. |